diff --git a/Makefile b/Makefile
index 57080871..74aaff23 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # ****************************************************************************
 #    Ledger App Solana
-#    (c) 2020 Ledger SAS.
+#    (c) 2024 Ledger SAS.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -28,128 +28,77 @@ endif
 
 include $(BOLOS_SDK)/Makefile.defines
 
-APP_LOAD_PARAMS = --curve ed25519
-ifeq ($(TARGET_NAME),$(filter $(TARGET_NAME),TARGET_NANOX TARGET_STAX))
-APP_LOAD_PARAMS += --appFlags 0xa00 # APPLICATION_FLAG_LIBRARY + APPLICATION_FLAG_BOLOS_SETTINGS
-else
-APP_LOAD_PARAMS += --appFlags 0x800 # APPLICATION_FLAG_LIBRARY
-endif
-APP_LOAD_PARAMS += --path "44'/501'"
-APP_LOAD_PARAMS += $(COMMON_LOAD_PARAMS)
+########################################
+#        Mandatory configuration       #
+########################################
+# Application name
+APPNAME = "Solana"
 
-APPNAME      = "Solana"
+# Application version
 APPVERSION_M = 1
-APPVERSION_N = 4
-APPVERSION_P = 3
-APPVERSION   = "$(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P)"
-
-ifeq ($(TARGET_NAME),TARGET_NANOS)
-    ICONNAME=icons/nanos_app_solana.gif
-else ifeq ($(TARGET_NAME),TARGET_STAX)
-    ICONNAME=icons/stax_app_solana.gif
-else
-    ICONNAME=icons/nanox_app_solana.gif
-endif
+APPVERSION_N = 5
+APPVERSION_P = 0
+APPVERSION = "$(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P)"
 
-################
-# Default rule #
-################
-all: default
-
-DEFINES += $(DEFINES_LIB)
-DEFINES += APPNAME=\"$(APPNAME)\"
-DEFINES += APPVERSION=\"$(APPVERSION)\"
-DEFINES += MAJOR_VERSION=$(APPVERSION_M) MINOR_VERSION=$(APPVERSION_N) PATCH_VERSION=$(APPVERSION_P)
-DEFINES += OS_IO_SEPROXYHAL
-DEFINES += HAVE_SPRINTF
-DEFINES += HAVE_IO_USB HAVE_L4_USBLIB IO_USB_MAX_ENDPOINTS=6 IO_HID_EP_LENGTH=64 HAVE_USB_APDU
-DEFINES += USB_SEGMENT_SIZE=64
-DEFINES += BLE_SEGMENT_SIZE=32
-DEFINES += HAVE_WEBUSB WEBUSB_URL_SIZE_B=0 WEBUSB_URL=""
-DEFINES += UNUSED\(x\)=\(void\)x
-
-ifeq ($(TARGET_NAME),$(filter $(TARGET_NAME),TARGET_NANOX TARGET_STAX))
-    DEFINES += HAVE_BLE BLE_COMMAND_TIMEOUT_MS=2000 HAVE_BLE_APDU
-endif
+# Application source files
+APP_SOURCE_PATH += src
 
-ifeq ($(TARGET_NAME),TARGET_NANOS)
-    DEFINES += IO_SEPROXYHAL_BUFFER_SIZE_B=128
-else
-    DEFINES += IO_SEPROXYHAL_BUFFER_SIZE_B=300
-endif
+# Application icons
+ICON_NANOS = icons/nanos_app_solana.gif
+ICON_NANOX = icons/nanox_app_solana.gif
+ICON_NANOSP = icons/nanox_app_solana.gif
+ICON_STAX = icons/stax_app_solana.gif
+ICON_FLEX = icons/flex_app_solana.gif
 
-ifeq ($(TARGET_NAME),TARGET_STAX)
-    DEFINES += NBGL_QRCODE
-    SDK_SOURCE_PATH += qrcode
-else
-    DEFINES += HAVE_BAGL HAVE_UX_FLOW
-    ifneq ($(TARGET_NAME),TARGET_NANOS)
-        DEFINES += HAVE_GLO096
-        DEFINES += BAGL_WIDTH=128 BAGL_HEIGHT=64
-        DEFINES += HAVE_BAGL_ELLIPSIS
-        DEFINES += HAVE_BAGL_FONT_OPEN_SANS_REGULAR_11PX
-        DEFINES += HAVE_BAGL_FONT_OPEN_SANS_EXTRABOLD_11PX
-        DEFINES += HAVE_BAGL_FONT_OPEN_SANS_LIGHT_16PX
-    endif
-endif
+# Application allowed derivation curves
+CURVE_APP_LOAD_PARAMS = ed25519
 
-DEBUG = 0
-ifneq ($(DEBUG),0)
-    DEFINES += HAVE_PRINTF
-    ifeq ($(TARGET_NAME),TARGET_NANOS)
-        DEFINES += PRINTF=screen_printf
-    else
-        DEFINES += PRINTF=mcu_usb_printf
-    endif
-else
-        DEFINES += PRINTF\(...\)=
-endif
+# Application allowed derivation paths.
+PATH_APP_LOAD_PARAMS = "44'/501'"   # purpose=coin(44) / coin_type=Solana(501)
 
-ifneq ($(BOLOS_ENV),)
-$(info BOLOS_ENV=$(BOLOS_ENV))
-CLANGPATH := $(BOLOS_ENV)/clang-arm-fropi/bin/
-GCCPATH   := $(BOLOS_ENV)/gcc-arm-none-eabi-5_3-2016q1/bin/
-else
-$(info BOLOS_ENV is not set: falling back to CLANGPATH and GCCPATH)
-endif
-ifeq ($(CLANGPATH),)
-$(info CLANGPATH is not set: clang will be used from PATH)
-endif
-ifeq ($(GCCPATH),)
-$(info GCCPATH is not set: arm-none-eabi-* will be used from PATH)
+# Setting to allow building variant applications
+VARIANT_PARAM = COIN
+VARIANT_VALUES = solana
+
+# Enabling DEBUG flag will enable PRINTF and disable optimizations
+#DEBUG = 1
+
+########################################
+#     Application custom permissions   #
+########################################
+HAVE_APPLICATION_FLAG_LIBRARY = 1
+ifeq ($(TARGET_NAME),$(filter $(TARGET_NAME),TARGET_NANOX TARGET_STAX TARGET_FLEX))
+HAVE_APPLICATION_FLAG_BOLOS_SETTINGS = 1
 endif
 
-CC      := $(CLANGPATH)clang
-CFLAGS  += -O3 -Os
-AS      := $(GCCPATH)arm-none-eabi-gcc
-LD      := $(GCCPATH)arm-none-eabi-gcc
-LDFLAGS += -O3 -Os
-LDLIBS  += -lm -lgcc -lc
+########################################
+# Application communication interfaces #
+########################################
+ENABLE_BLUETOOTH = 1
 
-include $(BOLOS_SDK)/Makefile.glyphs
+########################################
+#         NBGL custom features         #
+########################################
+ENABLE_NBGL_QRCODE = 1
 
-APP_SOURCE_PATH += src
-SDK_SOURCE_PATH += lib_stusb lib_stusb_impl
+########################################
+#          Features disablers          #
+########################################
+# These advanced settings allow to disable some feature that are by
+# default enabled in the SDK `Makefile.standard_app`.
+DISABLE_STANDARD_APP_FILES = 1
 
 # Allow usage of function from lib_standard_app/crypto_helpers.c
 APP_SOURCE_FILES += ${BOLOS_SDK}/lib_standard_app/crypto_helpers.c
 
-ifneq ($(TARGET_NAME),TARGET_STAX)
-SDK_SOURCE_PATH += lib_ux
-endif
-
-ifeq ($(TARGET_NAME),$(filter $(TARGET_NAME),TARGET_NANOX TARGET_STAX))
-    SDK_SOURCE_PATH += lib_blewbxx lib_blewbxx_impl
-endif
-
-WITH_U2F=0
+WITH_U2F?=0
 ifneq ($(WITH_U2F),0)
     DEFINES         += HAVE_U2F HAVE_IO_U2F
     DEFINES         += U2F_PROXY_MAGIC=\"~SOL\"
 		SDK_SOURCE_PATH += lib_u2f
 endif
 
-WITH_LIBSOL=1
+WITH_LIBSOL?=1
 ifneq ($(WITH_LIBSOL),0)
     SOURCE_FILES += $(filter-out %_test.c,$(wildcard libsol/*.c))
     CFLAGS       += -Ilibsol/include
@@ -157,19 +106,4 @@ ifneq ($(WITH_LIBSOL),0)
     DEFINES      += NDEBUG
 endif
 
-load: all load-only
-load-only:
-	python3 -m ledgerblue.loadApp $(APP_LOAD_PARAMS)
-
-load-offline: all
-	python3 -m ledgerblue.loadApp $(APP_LOAD_PARAMS) --offline
-
-delete:
-	python3 -m ledgerblue.deleteApp $(COMMON_DELETE_PARAMS)
-
-include $(BOLOS_SDK)/Makefile.rules
-
-dep/%.d: %.c Makefile
-
-listvariants:
-	@echo VARIANTS COIN solana
+include $(BOLOS_SDK)/Makefile.standard_app
diff --git a/icons/flex_app_solana.gif b/icons/flex_app_solana.gif
new file mode 100644
index 00000000..f8fc11d5
Binary files /dev/null and b/icons/flex_app_solana.gif differ
diff --git a/ledger_app.toml b/ledger_app.toml
index d19344d0..101e5b17 100644
--- a/ledger_app.toml
+++ b/ledger_app.toml
@@ -1,7 +1,7 @@
 [app]
 build_directory = "./"
 sdk = "C"
-devices = ["nanos", "nanox", "nanos+", "stax"]
+devices = ["nanos", "nanox", "nanos+", "stax", "flex"]
 
 [tests]
 pytest_directory = "./tests/python"
diff --git a/src/main.c b/src/main.c
index ba88e23f..cdd3a13e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -175,7 +175,7 @@ void nv_app_state_init() {
     if (N_storage.initialized != 0x01) {
         internalStorage_t storage;
         storage.settings.allow_blind_sign = BlindSignDisabled;
-#if defined(TARGET_NANOX) || defined(TARGET_NANOS2) || defined(TARGET_STAX)
+#if !defined(TARGET_NANOS)
         storage.settings.pubkey_display = PubkeyDisplayLong;
 #else
         storage.settings.pubkey_display = PubkeyDisplayShort;
diff --git a/src/ui/get_pubkey_nbgl.c b/src/ui/get_pubkey_nbgl.c
index 8c8f3490..4d077146 100644
--- a/src/ui/get_pubkey_nbgl.c
+++ b/src/ui/get_pubkey_nbgl.c
@@ -1,4 +1,3 @@
-
 /*****************************************************************************
  *   Ledger App Solana
  *   (c) 2023 Ledger SAS.
@@ -25,37 +24,24 @@
 #include "ui_api.h"
 #include "apdu.h"
 
-static void confirm_address_approval(void) {
-    // display a success status page and go back to main
-    sendResponse(set_result_get_pubkey(), ApduReplySuccess, false);
-    nbgl_useCaseStatus("ADDRESS\nVERIFIED", true, ui_idle);
-}
-
-static void confirm_address_rejection(void) {
-    // display a status page and go back to main
-    sendResponse(0, ApduReplyUserRefusal, false);
-    nbgl_useCaseStatus("Address verification\ncancelled", false, ui_idle);
-}
-
 static void review_choice(bool confirm) {
+    // Answer, display a status page and go back to main
     if (confirm) {
-        confirm_address_approval();
+        sendResponse(set_result_get_pubkey(), ApduReplySuccess, false);
+        nbgl_useCaseReviewStatus(STATUS_TYPE_ADDRESS_VERIFIED, ui_idle);
     } else {
-        confirm_address_rejection();
+        sendResponse(0, ApduReplyUserRefusal, false);
+        nbgl_useCaseReviewStatus(STATUS_TYPE_ADDRESS_REJECTED, ui_idle);
     }
 }
 
-static void continue_review(void) {
-    nbgl_useCaseAddressConfirmation(G_publicKeyStr, review_choice);
-}
-
 void ui_get_public_key(void) {
-    nbgl_useCaseReviewStart(&C_icon_solana_64x64,
-                            "Verify Solana\naddress",
-                            NULL,
-                            "Cancel",
-                            continue_review,
-                            confirm_address_rejection);
+    nbgl_useCaseAddressReview(G_publicKeyStr,
+                              NULL,
+                              &C_icon_solana_64x64,
+                              "Verify Solana address",
+                              NULL,
+                              review_choice);
 }
 
 #endif
diff --git a/src/ui/menu_nbgl.c b/src/ui/menu_nbgl.c
index a0f2d84c..3cecf845 100644
--- a/src/ui/menu_nbgl.c
+++ b/src/ui/menu_nbgl.c
@@ -28,16 +28,23 @@ static void quit_app_callback(void) {
     os_sched_exit(-1);
 }
 
-static const char* const info_types[] = {"Version", "Developer"};
-static const char* const info_contents[] = {APPVERSION, "Ledger"};
+#define SETTING_INFO_NB 2
+static const char* const info_types[SETTING_INFO_NB] = {"Version", "Developer"};
+static const char* const info_contents[SETTING_INFO_NB] = {APPVERSION, "Ledger"};
+
+static const nbgl_contentInfoList_t infoList = {
+    .nbInfos = SETTING_INFO_NB,
+    .infoTypes = info_types,
+    .infoContents = info_contents,
+};
 
 enum {
     BLIND_SIGNING_IDX = 0,
     PUBLIC_KEY_LENGTH_IDX,
     DISPLAY_MODE_IDX,
-    NB_SETTINGS,
+    NB_SETTINGS_SWITCHES,
 };
-static nbgl_layoutSwitch_t G_switches[NB_SETTINGS];
+static nbgl_layoutSwitch_t G_switches[NB_SETTINGS_SWITCHES];
 
 enum {
     BLIND_SIGNING_TOKEN = FIRST_USER_TOKEN,
@@ -45,61 +52,45 @@ enum {
     DISPLAY_MODE_TOKEN,
 };
 
-#define SETTINGS_PAGE_NUMBER 2
-static bool settings_nav_callback(uint8_t page, nbgl_pageContent_t* content) {
-    if (page == 0) {
-        content->type = INFOS_LIST;
-        content->infosList.nbInfos = ARRAY_COUNT(info_types);
-        content->infosList.infoTypes = info_types;
-        content->infosList.infoContents = info_contents;
-    } else if (page == 1) {
-        // Read again the NVM as the value might have changed following a user touch
-        if (N_storage.settings.allow_blind_sign == BlindSignDisabled) {
-            G_switches[BLIND_SIGNING_IDX].initState = OFF_STATE;
-        } else {
-            G_switches[BLIND_SIGNING_IDX].initState = ON_STATE;
-        }
-        if (N_storage.settings.pubkey_display == PubkeyDisplayLong) {
-            G_switches[PUBLIC_KEY_LENGTH_IDX].initState = OFF_STATE;
-        } else {
-            G_switches[PUBLIC_KEY_LENGTH_IDX].initState = ON_STATE;
-        }
-        if (N_storage.settings.display_mode == DisplayModeUser) {
-            G_switches[DISPLAY_MODE_IDX].initState = OFF_STATE;
-        } else {
-            G_switches[DISPLAY_MODE_IDX].initState = ON_STATE;
-        }
-        content->type = SWITCHES_LIST;
-        content->switchesList.nbSwitches = NB_SETTINGS;
-        content->switchesList.switches = G_switches;
-    } else {
-        return false;
-    }
+static void settings_controls_callback(int token, uint8_t index, int page);
 
-    return true;
-}
+// settings menu definition
+#define SETTING_CONTENTS_NB 1
+static const nbgl_content_t contents[SETTING_CONTENTS_NB] = {
+    {.type = SWITCHES_LIST,
+     .content.switchesList.nbSwitches = NB_SETTINGS_SWITCHES,
+     .content.switchesList.switches = G_switches,
+     .contentActionCallback = settings_controls_callback}};
 
-static void settings_controls_callback(int token, uint8_t index) {
+static const nbgl_genericContents_t settingContents = {.callbackCallNeeded = false,
+                                                       .contentsList = contents,
+                                                       .nbContents = SETTING_CONTENTS_NB};
+
+static void settings_controls_callback(int token, uint8_t index, int page) {
     UNUSED(index);
+    UNUSED(page);
     uint8_t new_setting;
     switch (token) {
         case BLIND_SIGNING_TOKEN:
-            // Write in NVM the opposit of what the current toggle is
+            // Write in NVM the opposite of what the current toggle is
             new_setting = (G_switches[BLIND_SIGNING_IDX].initState != ON_STATE);
+            G_switches[BLIND_SIGNING_IDX].initState = (nbgl_state_t) new_setting;
             nvm_write((void*) &N_storage.settings.allow_blind_sign,
                       &new_setting,
                       sizeof(new_setting));
             break;
         case PUBLIC_KEY_LENGTH_TOKEN:
-            // Write in NVM the opposit of what the current toggle is
+            // Write in NVM the opposite of what the current toggle is
             new_setting = (G_switches[PUBLIC_KEY_LENGTH_IDX].initState != ON_STATE);
+            G_switches[PUBLIC_KEY_LENGTH_IDX].initState = (nbgl_state_t) new_setting;
             nvm_write((void*) &N_storage.settings.pubkey_display,
                       &new_setting,
                       sizeof(new_setting));
             break;
         case DISPLAY_MODE_TOKEN:
-            // Write in NVM the opposit of what the current toggle is
+            // Write in NVM the opposite of what the current toggle is
             new_setting = (G_switches[DISPLAY_MODE_IDX].initState != ON_STATE);
+            G_switches[DISPLAY_MODE_IDX].initState = (nbgl_state_t) new_setting;
             nvm_write((void*) &N_storage.settings.display_mode, &new_setting, sizeof(new_setting));
             break;
         default:
@@ -108,38 +99,44 @@ static void settings_controls_callback(int token, uint8_t index) {
     }
 }
 
-static void ui_menu_settings(void) {
+void ui_idle(void) {
     G_switches[BLIND_SIGNING_IDX].text = "Blind signing";
     G_switches[BLIND_SIGNING_IDX].subText = "Enable blind signing";
     G_switches[BLIND_SIGNING_IDX].token = BLIND_SIGNING_TOKEN;
     G_switches[BLIND_SIGNING_IDX].tuneId = TUNE_TAP_CASUAL;
+    if (N_storage.settings.allow_blind_sign == BlindSignDisabled) {
+        G_switches[BLIND_SIGNING_IDX].initState = OFF_STATE;
+    } else {
+        G_switches[BLIND_SIGNING_IDX].initState = ON_STATE;
+    }
 
     G_switches[PUBLIC_KEY_LENGTH_IDX].text = "Public key length";
     G_switches[PUBLIC_KEY_LENGTH_IDX].subText = "Display short public keys";
     G_switches[PUBLIC_KEY_LENGTH_IDX].token = PUBLIC_KEY_LENGTH_TOKEN;
     G_switches[PUBLIC_KEY_LENGTH_IDX].tuneId = TUNE_TAP_CASUAL;
+    if (N_storage.settings.pubkey_display == PubkeyDisplayLong) {
+        G_switches[PUBLIC_KEY_LENGTH_IDX].initState = OFF_STATE;
+    } else {
+        G_switches[PUBLIC_KEY_LENGTH_IDX].initState = ON_STATE;
+    }
 
     G_switches[DISPLAY_MODE_IDX].text = "Display mode";
     G_switches[DISPLAY_MODE_IDX].subText = "Use Expert display mode";
     G_switches[DISPLAY_MODE_IDX].token = DISPLAY_MODE_TOKEN;
     G_switches[DISPLAY_MODE_IDX].tuneId = TUNE_TAP_CASUAL;
+    if (N_storage.settings.display_mode == DisplayModeUser) {
+        G_switches[DISPLAY_MODE_IDX].initState = OFF_STATE;
+    } else {
+        G_switches[DISPLAY_MODE_IDX].initState = ON_STATE;
+    }
 
-    nbgl_useCaseSettings(APPNAME " settings",
-                         0,
-                         SETTINGS_PAGE_NUMBER,
-                         false,
-                         ui_idle,
-                         settings_nav_callback,
-                         settings_controls_callback);
-}
-
-void ui_idle(void) {
-    nbgl_useCaseHome(APPNAME,
-                     &C_icon_solana_64x64,
-                     NULL,
-                     true,
-                     ui_menu_settings,
-                     quit_app_callback);
+    nbgl_useCaseHomeAndSettings(APPNAME,
+                                &C_icon_solana_64x64,
+                                NULL,
+                                INIT_HOME_PAGE,
+                                &settingContents,
+                                &infoList,
+                                NULL,
+                                quit_app_callback);
 }
-
 #endif
diff --git a/src/ui/sign_message_nbgl.c b/src/ui/sign_message_nbgl.c
index e4adfa2c..80388e4a 100644
--- a/src/ui/sign_message_nbgl.c
+++ b/src/ui/sign_message_nbgl.c
@@ -17,10 +17,12 @@
 #include "handle_sign_message.h"
 #include "handle_sign_offchain_message.h"
 
-// Layout of the review flow
-static nbgl_layoutTagValueList_t layout;
+// Content of the review flow
+static nbgl_contentTagValueList_t content;
 // Used by NBGL to display the reference the pair number N
 static nbgl_layoutTagValue_t current_pair;
+// Used to differentiate between message and transaction review
+nbgl_operationType_t operation_type;
 
 // We will display at most 4 items on a Stax review screen
 #define MAX_SIMULTANEOUS_DISPLAYED_SLOTS NB_MAX_DISPLAYED_PAIRS_IN_REVIEW
@@ -30,50 +32,6 @@ typedef struct dynamic_slot_s {
 } dynamic_slot_t;
 static dynamic_slot_t displayed_slots[MAX_SIMULTANEOUS_DISPLAYED_SLOTS];
 
-// Final review screen of the message signing flow
-static nbgl_pageInfoLongPress_t review_final_long_press;
-
-static const char reject_choice_message[] = "Message\nrejected";
-static const char reject_choice_transaction[] = "Transaction\nrejected";
-static const char *reject_choice_text;
-
-static const char go_back_message[] = "Go back to message";
-static const char go_back_transaction[] = "Go back to transaction";
-static const char *go_back_text;
-
-static const char option_reject_message[] = "Reject message";
-static const char option_reject_transaction[] = "Reject transaction";
-static const char *option_reject_text;
-
-static const char ask_reject_message[] = "Reject message?";
-static const char ask_reject_transaction[] = "Reject transaction?";
-static const char *ask_reject_text;
-
-static const char success_message[] = "MESSAGE\nSIGNED";
-static const char success_transaction[] = "TRANSACTION\nSIGNED";
-static const char *success_text;
-
-// Callback called when the user confirms the message rejection
-static void rejectChoice(void) {
-    sendResponse(0, ApduReplyUserRefusal, false);
-    nbgl_useCaseStatus(reject_choice_text, false, ui_idle);
-}
-
-// If the user asks for message rejection, ask for confirmation
-static void rejectUseCaseChoice(void) {
-    nbgl_useCaseConfirm(ask_reject_text, NULL, "Yes, reject", go_back_text, rejectChoice);
-}
-
-// Callback called on the final review screen
-static void review_final_callback(bool confirmed) {
-    if (confirmed) {
-        sendResponse(set_result_sign_message(), ApduReplySuccess, false);
-        nbgl_useCaseStatus(success_text, true, ui_idle);
-    } else {
-        rejectUseCaseChoice();
-    }
-}
-
 // NBGL library has to know how many steps will be displayed
 static size_t transaction_steps_number;
 static bool last_step_is_ascii;
@@ -81,7 +39,7 @@ static bool last_step_is_ascii;
 // function called by NBGL to get the current_pair indexed by "index"
 // current_pair will point at values stored in displayed_slots[]
 // this will enable displaying at most sizeof(displayed_slots) values simultaneously
-static nbgl_layoutTagValue_t *get_single_action_review_pair(uint8_t index) {
+static nbgl_contentTagValue_t *get_single_action_review_pair(uint8_t index) {
     uint8_t slot = index % ARRAY_COUNT(displayed_slots);
     // Final step is special for ASCII messages
     if (index == transaction_steps_number - 1 && last_step_is_ascii) {
@@ -109,59 +67,59 @@ static nbgl_layoutTagValue_t *get_single_action_review_pair(uint8_t index) {
     return &current_pair;
 }
 
-// Prepare the review layout structure and starts the review use_case
-static void start_review(void) {
-    layout.nbMaxLinesForValue = 0;
-    layout.smallCaseForValue = false;
-    layout.wrapping = true;
-    layout.pairs = NULL;  // to indicate that callback should be used
-    layout.callback = get_single_action_review_pair;
-    layout.startIndex = 0;
-    layout.nbPairs = transaction_steps_number;
-
-    nbgl_useCaseStaticReview(&layout,
-                             &review_final_long_press,
-                             option_reject_text,
-                             review_final_callback);
+static void review_choice(bool confirm) {
+    // Answer, display a status page and go back to main
+    // validate_transaction(confirm);
+    nbgl_reviewStatusType_t status_type;
+    if (confirm) {
+        sendResponse(set_result_sign_message(), ApduReplySuccess, false);
+        if (operation_type == TYPE_MESSAGE) {
+            status_type = STATUS_TYPE_MESSAGE_SIGNED;
+        } else {
+            status_type = STATUS_TYPE_TRANSACTION_SIGNED;
+        }
+        nbgl_useCaseReviewStatus(status_type, ui_idle);
+    } else {
+        sendResponse(0, ApduReplyUserRefusal, false);
+        if (operation_type == TYPE_MESSAGE) {
+            status_type = STATUS_TYPE_MESSAGE_REJECTED;
+        } else {
+            status_type = STATUS_TYPE_TRANSACTION_REJECTED;
+        }
+        nbgl_useCaseReviewStatus(status_type, ui_idle);
+    }
 }
 
 void start_sign_tx_ui(size_t num_summary_steps) {
-    review_final_long_press.text = "Sign transaction on\nSolana network?";
-    review_final_long_press.icon = &C_icon_solana_64x64;
-    review_final_long_press.longPressText = "Hold to sign";
-    review_final_long_press.longPressToken = 0;
-    review_final_long_press.tuneId = TUNE_TAP_CASUAL;
-
-    reject_choice_text = reject_choice_transaction;
-    go_back_text = go_back_transaction;
-    ask_reject_text = ask_reject_transaction;
-    success_text = success_transaction;
-    option_reject_text = option_reject_transaction;
+    // Set the transaction type
+    operation_type = TYPE_TRANSACTION;
 
     // Save steps number for later
     transaction_steps_number = num_summary_steps;
     last_step_is_ascii = false;
-    // start display
-    nbgl_useCaseReviewStart(&C_icon_solana_64x64,
-                            "Review transaction",
-                            NULL,
-                            "Reject transaction",
-                            start_review,
-                            rejectUseCaseChoice);
+
+    // Initialize the content structure
+    content.nbMaxLinesForValue = 0;
+    content.smallCaseForValue = false;
+    content.wrapping = true;
+    content.pairs = NULL;  // to indicate that callback should be used
+    content.callback = get_single_action_review_pair;
+    content.startIndex = 0;
+    content.nbPairs = transaction_steps_number;
+
+    // Start review
+    nbgl_useCaseReview(operation_type,
+                       &content,
+                       &C_icon_solana_64x64,
+                       "Review transaction",
+                       NULL,
+                       "Sign transaction on Solana network?",
+                       review_choice);
 }
 
 void start_sign_offchain_message_ui(bool is_ascii, size_t num_summary_steps) {
-    review_final_long_press.text = "Sign Off-Chain\nmessage on Solana\nnetwork?";
-    review_final_long_press.icon = &C_icon_solana_64x64;
-    review_final_long_press.longPressText = "Hold to sign";
-    review_final_long_press.longPressToken = 0;
-    review_final_long_press.tuneId = TUNE_TAP_CASUAL;
-
-    reject_choice_text = reject_choice_message;
-    go_back_text = go_back_message;
-    ask_reject_text = ask_reject_message;
-    success_text = success_message;
-    option_reject_text = option_reject_message;
+    // Set the operation type
+    operation_type = TYPE_MESSAGE;
 
     // Save steps number for later
     transaction_steps_number = num_summary_steps;
@@ -169,13 +127,23 @@ void start_sign_offchain_message_ui(bool is_ascii, size_t num_summary_steps) {
     if (is_ascii) {
         ++transaction_steps_number;
     }
-    // start display
-    nbgl_useCaseReviewStart(&C_icon_solana_64x64,
-                            "Review off-chain\nmessage",
-                            NULL,
-                            "Reject message",
-                            start_review,
-                            rejectUseCaseChoice);
-}
 
+    // Initialize the content structure
+    content.nbMaxLinesForValue = 0;
+    content.smallCaseForValue = false;
+    content.wrapping = true;
+    content.pairs = NULL;  // to indicate that callback should be used
+    content.callback = get_single_action_review_pair;
+    content.startIndex = 0;
+    content.nbPairs = transaction_steps_number;
+
+    // Start review
+    nbgl_useCaseReview(operation_type,
+                       &content,
+                       &C_icon_solana_64x64,
+                       "Review off-chain\nmessage",
+                       NULL,
+                       "Sign off-chain message on Solana network?",
+                       review_choice);
+}
 #endif
diff --git a/tests/python/apps/solana_utils.py b/tests/python/apps/solana_utils.py
index 09f1a207..2fb08437 100644
--- a/tests/python/apps/solana_utils.py
+++ b/tests/python/apps/solana_utils.py
@@ -1,6 +1,7 @@
 import base58
 from pathlib import Path
 
+from ragger.firmware import Firmware
 from ragger.navigator import NavInsID, NavIns
 from ragger.utils import create_currency_config
 from ragger.bip import pack_derivation_path
@@ -58,8 +59,8 @@ def lamports_to_bytes(lamports: int) -> str:
 SOL_CONF = create_currency_config("SOL", "Solana")
 
 
-def enable_blind_signing(navigator, device_name: str, snapshots_name: str):
-    if device_name.startswith("nano"):
+def enable_blind_signing(navigator, firmware, snapshots_name: str):
+    if firmware.is_nano:
         nav = [NavInsID.RIGHT_CLICK, NavInsID.BOTH_CLICK, # Go to settings
                NavInsID.BOTH_CLICK, # Select blind signing
                NavInsID.RIGHT_CLICK, NavInsID.BOTH_CLICK, # Enable
@@ -67,7 +68,6 @@ def enable_blind_signing(navigator, device_name: str, snapshots_name: str):
               ]
     else:
         nav = [NavInsID.USE_CASE_HOME_SETTINGS,
-               NavInsID.USE_CASE_SETTINGS_NEXT,
                NavIns(NavInsID.TOUCH, (348,132)),
                NavInsID.USE_CASE_SETTINGS_MULTI_PAGE_EXIT]
     navigator.navigate_and_compare(ROOT_SCREENSHOT_PATH,
@@ -92,48 +92,23 @@ def enable_short_public_key(navigator, device_name: str, snapshots_name: str):
                                    nav,
                                    screen_change_before_first_instruction=False)
 
-def enable_expert_mode(navigator, device_name: str, snapshots_name: str):
-    if device_name.startswith("nano"):
+def enable_expert_mode(navigator, firmware, snapshots_name: str):
+    if firmware.is_nano:
         nav = [NavInsID.RIGHT_CLICK, NavInsID.BOTH_CLICK, # Go to settings
                NavInsID.RIGHT_CLICK, NavInsID.RIGHT_CLICK, NavInsID.BOTH_CLICK, # Select Expert mode
                NavInsID.RIGHT_CLICK, NavInsID.BOTH_CLICK, # expert
                NavInsID.RIGHT_CLICK, NavInsID.BOTH_CLICK # Back to main menu
               ]
-    else:
+    elif firmware is Firmware.STAX:
         nav = [NavInsID.USE_CASE_HOME_SETTINGS,
-               NavInsID.USE_CASE_SETTINGS_NEXT,
                NavIns(NavInsID.TOUCH, (348,382)),
                NavInsID.USE_CASE_SETTINGS_MULTI_PAGE_EXIT]
+    elif firmware is Firmware.FLEX:
+        nav = [NavInsID.USE_CASE_HOME_SETTINGS,
+               NavInsID.USE_CASE_SETTINGS_NEXT,
+               NavIns(NavInsID.TOUCH, (250,160)),
+               NavInsID.USE_CASE_SETTINGS_MULTI_PAGE_EXIT]
     navigator.navigate_and_compare(ROOT_SCREENSHOT_PATH,
                                    snapshots_name,
                                    nav,
                                    screen_change_before_first_instruction=False)
-
-def _navigation_helper(navigator, device_name: str, accept: bool, snapshots_name: str):
-    if device_name.startswith("nano"):
-        navigate_instruction = NavInsID.RIGHT_CLICK
-        validation_instructions = [NavInsID.BOTH_CLICK]
-        if accept:
-            text = "Approve"
-        else:
-            text = "Reject"
-    else:
-        navigate_instruction = NavInsID.USE_CASE_REVIEW_TAP
-        text = "Hold to sign"
-        if accept:
-            validation_instructions = [NavInsID.USE_CASE_REVIEW_CONFIRM, NavInsID.USE_CASE_STATUS_DISMISS]
-        else:
-            validation_instructions = [NavInsID.USE_CASE_REVIEW_REJECT, NavInsID.USE_CASE_CHOICE_CONFIRM, NavInsID.USE_CASE_STATUS_DISMISS]
-
-
-    navigator.navigate_until_text_and_compare(navigate_instruction,
-                                              validation_instructions,
-                                              text,
-                                              ROOT_SCREENSHOT_PATH,
-                                              snapshots_name)
-
-def navigation_helper_confirm(navigator, device_name: str, snapshots_name: str):
-    _navigation_helper(navigator=navigator, device_name=device_name, accept=True, snapshots_name=snapshots_name)
-
-def navigation_helper_reject(navigator, device_name: str, snapshots_name: str):
-    _navigation_helper(navigator=navigator, device_name=device_name, accept=False, snapshots_name=snapshots_name)
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diff --git a/tests/python/test_solana.py b/tests/python/test_solana.py
index 82b1c254..f71a724e 100644
--- a/tests/python/test_solana.py
+++ b/tests/python/test_solana.py
@@ -1,65 +1,36 @@
 from ragger.backend import RaisePolicy
-from ragger.navigator import NavInsID, NavIns
 from ragger.utils import RAPDU
 
 from .apps.solana import SolanaClient, ErrorType
 from .apps.solana_cmd_builder import SystemInstructionTransfer, Message, verify_signature, OffchainMessage
 from .apps.solana_utils import FOREIGN_PUBLIC_KEY, FOREIGN_PUBLIC_KEY_2, AMOUNT, AMOUNT_2, SOL_PACKED_DERIVATION_PATH, SOL_PACKED_DERIVATION_PATH_2, ROOT_SCREENSHOT_PATH
-from .apps.solana_utils import enable_blind_signing, enable_short_public_key, enable_expert_mode, navigation_helper_confirm, navigation_helper_reject
+from .apps.solana_utils import enable_blind_signing, enable_expert_mode
 
 
 class TestGetPublicKey:
 
-    def test_solana_get_public_key_ok(self, backend, navigator, test_name):
+    def test_solana_get_public_key_ok(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
         with sol.send_public_key_with_confirm(SOL_PACKED_DERIVATION_PATH):
-            if backend.firmware.device.startswith("nano"):
-                navigator.navigate_until_text_and_compare(NavInsID.RIGHT_CLICK,
-                                                          [NavInsID.BOTH_CLICK],
-                                                          "Approve",
-                                                          ROOT_SCREENSHOT_PATH,
-                                                          test_name)
-            else:
-                instructions = [
-                    NavInsID.USE_CASE_REVIEW_TAP,
-                    NavInsID.USE_CASE_ADDRESS_CONFIRMATION_CONFIRM,
-                    NavInsID.USE_CASE_STATUS_DISMISS
-                ]
-                navigator.navigate_and_compare(ROOT_SCREENSHOT_PATH,
-                                               test_name,
-                                               instructions)
+            scenario_navigator.address_review_approve(path=ROOT_SCREENSHOT_PATH)
 
         assert sol.get_async_response().data == from_public_key
 
 
-    def test_solana_get_public_key_refused(self, backend, navigator, test_name):
+    def test_solana_get_public_key_refused(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
         with sol.send_public_key_with_confirm(SOL_PACKED_DERIVATION_PATH):
             backend.raise_policy = RaisePolicy.RAISE_NOTHING
-            if backend.firmware.device.startswith("nano"):
-                navigator.navigate_until_text_and_compare(NavInsID.RIGHT_CLICK,
-                                                          [NavInsID.BOTH_CLICK],
-                                                          "Reject",
-                                                          ROOT_SCREENSHOT_PATH,
-                                                          test_name)
-            else:
-                instructions = [
-                    NavInsID.USE_CASE_REVIEW_TAP,
-                    NavInsID.USE_CASE_ADDRESS_CONFIRMATION_CANCEL,
-                    NavInsID.USE_CASE_STATUS_DISMISS
-                ]
-                navigator.navigate_and_compare(ROOT_SCREENSHOT_PATH,
-                                               test_name,
-                                               instructions)
+            scenario_navigator.address_review_reject(path=ROOT_SCREENSHOT_PATH)
 
         assert sol.get_async_response().status == ErrorType.USER_CANCEL
 
 
 class TestMessageSigning:
 
-    def test_solana_simple_transfer_ok_1(self, backend, navigator, test_name):
+    def test_solana_simple_transfer_ok_1(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
@@ -68,13 +39,13 @@ def test_solana_simple_transfer_ok_1(self, backend, navigator, test_name):
         message: bytes = Message([instruction]).serialize()
 
         with sol.send_async_sign_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_confirm(navigator, backend.firmware.device, test_name)
+            scenario_navigator.review_approve(path=ROOT_SCREENSHOT_PATH)
 
         signature: bytes = sol.get_async_response().data
         verify_signature(from_public_key, message, signature)
 
 
-    def test_solana_simple_transfer_ok_2(self, backend, navigator, test_name):
+    def test_solana_simple_transfer_ok_2(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH_2)
 
@@ -83,13 +54,13 @@ def test_solana_simple_transfer_ok_2(self, backend, navigator, test_name):
         message: bytes = Message([instruction]).serialize()
 
         with sol.send_async_sign_message(SOL_PACKED_DERIVATION_PATH_2, message):
-            navigation_helper_confirm(navigator, backend.firmware.device, test_name)
+            scenario_navigator.review_approve(path=ROOT_SCREENSHOT_PATH)
 
         signature: bytes = sol.get_async_response().data
         verify_signature(from_public_key, message, signature)
 
 
-    def test_solana_simple_transfer_refused(self, backend, navigator, test_name):
+    def test_solana_simple_transfer_refused(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
@@ -98,7 +69,7 @@ def test_solana_simple_transfer_refused(self, backend, navigator, test_name):
 
         backend.raise_policy = RaisePolicy.RAISE_NOTHING
         with sol.send_async_sign_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_reject(navigator, backend.firmware.device, test_name)
+            scenario_navigator.review_reject(path=ROOT_SCREENSHOT_PATH)
 
         rapdu: RAPDU = sol.get_async_response()
         assert rapdu.status == ErrorType.USER_CANCEL
@@ -106,7 +77,7 @@ def test_solana_simple_transfer_refused(self, backend, navigator, test_name):
 
 class TestOffchainMessageSigning:
 
-    def test_ledger_sign_offchain_message_ascii_ok(self, backend, navigator, test_name):
+    def test_ledger_sign_offchain_message_ascii_ok(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
@@ -114,29 +85,28 @@ def test_ledger_sign_offchain_message_ascii_ok(self, backend, navigator, test_na
         message: bytes = offchain_message.serialize()
 
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_confirm(navigator, backend.firmware.device, test_name)
+            scenario_navigator.review_approve(path=ROOT_SCREENSHOT_PATH)
 
         signature: bytes = sol.get_async_response().data
         verify_signature(from_public_key, message, signature)
 
 
-    def test_ledger_sign_offchain_message_ascii_refused(self, backend, navigator, test_name):
+    def test_ledger_sign_offchain_message_ascii_refused(self, backend, scenario_navigator):
         sol = SolanaClient(backend)
-        from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
         offchain_message: OffchainMessage = OffchainMessage(0, b"Test message")
         message: bytes = offchain_message.serialize()
 
         backend.raise_policy = RaisePolicy.RAISE_NOTHING
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_reject(navigator, backend.firmware.device, test_name)
+            scenario_navigator.review_reject(path=ROOT_SCREENSHOT_PATH)
 
         rapdu: RAPDU = sol.get_async_response()
         assert rapdu.status == ErrorType.USER_CANCEL
 
 
-    def test_ledger_sign_offchain_message_ascii_expert_ok(self, backend, navigator, test_name):
-        enable_expert_mode(navigator, backend.firmware.device, test_name + "_1")
+    def test_ledger_sign_offchain_message_ascii_expert_ok(self, backend, scenario_navigator, navigator, test_name):
+        enable_expert_mode(navigator, backend.firmware, test_name + "_1")
 
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
@@ -145,31 +115,30 @@ def test_ledger_sign_offchain_message_ascii_expert_ok(self, backend, navigator,
         message: bytes = offchain_message.serialize()
 
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_confirm(navigator, backend.firmware.device, test_name + "_2")
+            scenario_navigator.review_approve(path=ROOT_SCREENSHOT_PATH, test_name=test_name + "_2")
 
         signature: bytes = sol.get_async_response().data
         verify_signature(from_public_key, message, signature)
 
 
-    def test_ledger_sign_offchain_message_ascii_expert_refused(self, backend, navigator, test_name):
-        enable_expert_mode(navigator, backend.firmware.device, test_name + "_1")
+    def test_ledger_sign_offchain_message_ascii_expert_refused(self, backend, scenario_navigator, navigator, test_name):
+        enable_expert_mode(navigator, backend.firmware, test_name + "_1")
 
         sol = SolanaClient(backend)
-        from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
         offchain_message: OffchainMessage = OffchainMessage(0, b"Test message")
         message: bytes = offchain_message.serialize()
 
         backend.raise_policy = RaisePolicy.RAISE_NOTHING
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_reject(navigator, backend.firmware.device, test_name + "_2")
+            scenario_navigator.review_reject(path=ROOT_SCREENSHOT_PATH, test_name=test_name + "_2")
 
         rapdu: RAPDU = sol.get_async_response()
         assert rapdu.status == ErrorType.USER_CANCEL
 
 
-    def test_ledger_sign_offchain_message_utf8_ok(self, backend, navigator, test_name):
-        enable_blind_signing(navigator, backend.firmware.device, test_name + "_1")
+    def test_ledger_sign_offchain_message_utf8_ok(self, backend, scenario_navigator, navigator, test_name):
+        enable_blind_signing(navigator, backend.firmware, test_name + "_1")
 
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
@@ -178,32 +147,31 @@ def test_ledger_sign_offchain_message_utf8_ok(self, backend, navigator, test_nam
         message: bytes = offchain_message.serialize()
 
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_confirm(navigator, backend.firmware.device, test_name + "_2")
+            scenario_navigator.review_approve(path=ROOT_SCREENSHOT_PATH, test_name=test_name + "_2")
 
         signature: bytes = sol.get_async_response().data
         verify_signature(from_public_key, message, signature)
 
 
-    def test_ledger_sign_offchain_message_utf8_refused(self, backend, navigator, test_name):
-        enable_blind_signing(navigator, backend.firmware.device, test_name + "_1")
+    def test_ledger_sign_offchain_message_utf8_refused(self, backend, scenario_navigator, navigator, test_name):
+        enable_blind_signing(navigator, backend.firmware, test_name + "_1")
 
         sol = SolanaClient(backend)
-        from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
         offchain_message: OffchainMessage = OffchainMessage(0, bytes("Тестовое сообщение", 'utf-8'))
         message: bytes = offchain_message.serialize()
 
         backend.raise_policy = RaisePolicy.RAISE_NOTHING
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_reject(navigator, backend.firmware.device, test_name + "_2")
+            scenario_navigator.review_reject(path=ROOT_SCREENSHOT_PATH, test_name=test_name + "_2")
 
         rapdu: RAPDU = sol.get_async_response()
         assert rapdu.status == ErrorType.USER_CANCEL
 
 
-    def test_ledger_sign_offchain_message_utf8_expert_ok(self, backend, navigator, test_name):
-        enable_blind_signing(navigator, backend.firmware.device, test_name + "_1")
-        enable_expert_mode(navigator, backend.firmware.device, test_name + "_2")
+    def test_ledger_sign_offchain_message_utf8_expert_ok(self, backend, scenario_navigator, navigator, test_name):
+        enable_blind_signing(navigator, backend.firmware, test_name + "_1")
+        enable_expert_mode(navigator, backend.firmware, test_name + "_2")
 
         sol = SolanaClient(backend)
         from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
@@ -212,25 +180,24 @@ def test_ledger_sign_offchain_message_utf8_expert_ok(self, backend, navigator, t
         message: bytes = offchain_message.serialize()
 
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_confirm(navigator, backend.firmware.device, test_name + "_3")
+            scenario_navigator.review_approve(path=ROOT_SCREENSHOT_PATH, test_name=test_name + "_3")
 
         signature: bytes = sol.get_async_response().data
         verify_signature(from_public_key, message, signature)
 
 
-    def test_ledger_sign_offchain_message_utf8_expert_refused(self, backend, navigator, test_name):
-        enable_blind_signing(navigator, backend.firmware.device, test_name + "_1")
-        enable_expert_mode(navigator, backend.firmware.device, test_name + "_2")
+    def test_ledger_sign_offchain_message_utf8_expert_refused(self, backend, scenario_navigator, navigator, test_name):
+        enable_blind_signing(navigator, backend.firmware, test_name + "_1")
+        enable_expert_mode(navigator, backend.firmware, test_name + "_2")
 
         sol = SolanaClient(backend)
-        from_public_key = sol.get_public_key(SOL_PACKED_DERIVATION_PATH)
 
         offchain_message: OffchainMessage = OffchainMessage(0, bytes("Тестовое сообщение", 'utf-8'))
         message: bytes = offchain_message.serialize()
 
         backend.raise_policy = RaisePolicy.RAISE_NOTHING
         with sol.send_async_sign_offchain_message(SOL_PACKED_DERIVATION_PATH, message):
-            navigation_helper_reject(navigator, backend.firmware.device, test_name + "_3")
+            scenario_navigator.review_reject(path=ROOT_SCREENSHOT_PATH, test_name=test_name + "_3")
 
         rapdu: RAPDU = sol.get_async_response()
         assert rapdu.status == ErrorType.USER_CANCEL