diff --git a/Telegram/SourceFiles/boxes/connection_box.cpp b/Telegram/SourceFiles/boxes/connection_box.cpp
index 921c98b1cf093d..416292765d7253 100644
--- a/Telegram/SourceFiles/boxes/connection_box.cpp
+++ b/Telegram/SourceFiles/boxes/connection_box.cpp
@@ -1716,7 +1716,9 @@ void ProxiesBoxController::setTryIPv6(bool enabled) {
 		return;
 	}
 	Core::App().settings().proxy().setTryIPv6(enabled);
+#if 0 // mtp
 	_account->mtp().restart();
+#endif
 	_settings.connectionTypeChangesNotify();
 	saveDelayed();
 }
diff --git a/Telegram/SourceFiles/export/export_manager.cpp b/Telegram/SourceFiles/export/export_manager.cpp
index dfc25639657726..2eaf2058d8ff07 100644
--- a/Telegram/SourceFiles/export/export_manager.cpp
+++ b/Telegram/SourceFiles/export/export_manager.cpp
@@ -34,9 +34,12 @@ void Manager::start(
 		_panel->activatePanel();
 		return;
 	}
+#if 0 // tdlib todo export
 	_controller = std::make_unique<Controller>(
 		&session->mtp(),
 		singlePeer);
+#endif
+	return;
 	_panel = std::make_unique<View::PanelController>(
 		session,
 		_controller.get());
diff --git a/Telegram/SourceFiles/main/main_session.cpp b/Telegram/SourceFiles/main/main_session.cpp
index b7768bfe1e4338..72b6d0264cacc3 100644
--- a/Telegram/SourceFiles/main/main_session.cpp
+++ b/Telegram/SourceFiles/main/main_session.cpp
@@ -284,7 +284,7 @@ Tdb::Account &Session::tdb() const {
 	return _account->tdb();
 }
 
-Tdb::Sender &Session::sender() {
+Tdb::Sender &Session::sender() const {
 	return *_sender;
 }
 
@@ -402,11 +402,11 @@ void Session::saveSettingsNowIfNeeded() {
 MTP::DcId Session::mainDcId() const {
 	return _account->mtp().mainDcId();
 }
-#endif
 
 MTP::Instance &Session::mtp() const {
 	return _account->mtp();
 }
+#endif
 
 const MTP::ConfigFields &Session::serverConfig() const {
 	return _account->mtp().configValues();
diff --git a/Telegram/SourceFiles/main/main_session.h b/Telegram/SourceFiles/main/main_session.h
index 2227a9a7c969ec..82c33893c4052e 100644
--- a/Telegram/SourceFiles/main/main_session.h
+++ b/Telegram/SourceFiles/main/main_session.h
@@ -111,7 +111,13 @@ class Session final : public base::has_weak_ptr {
 	[[nodiscard]] AppConfig &appConfig() const;
 
 	[[nodiscard]] Tdb::Account &tdb() const;
-	[[nodiscard]] Tdb::Sender &sender();
+	[[nodiscard]] Tdb::Sender &sender() const;
+
+	// For using legacy code MTP::Sender _api; _api(&session->mtp()).
+	[[nodiscard]] Tdb::Sender &mtp() const {
+		return sender();
+	}
+
 	[[nodiscard]] bool loggingOut() const;
 
 	bool apply(const Tdb::TLDupdateOption &option);
@@ -212,8 +218,8 @@ class Session final : public base::has_weak_ptr {
 	[[nodiscard]] rpl::producer<> downloaderTaskFinished() const;
 #if 0 // mtp
 	[[nodiscard]] MTP::DcId mainDcId() const;
-#endif
 	[[nodiscard]] MTP::Instance &mtp() const;
+#endif
 	[[nodiscard]] const MTP::ConfigFields &serverConfig() const;
 	[[nodiscard]] ApiWrap &api() {
 		return *_api;
diff --git a/Telegram/SourceFiles/settings/settings_advanced.cpp b/Telegram/SourceFiles/settings/settings_advanced.cpp
index a2ae6487ad7281..4a47b38662ecac 100644
--- a/Telegram/SourceFiles/settings/settings_advanced.cpp
+++ b/Telegram/SourceFiles/settings/settings_advanced.cpp
@@ -75,6 +75,7 @@ void SetupConnectionType(
 		not_null<Main::Account*> account,
 		not_null<Ui::VerticalLayout*> container) {
 	const auto connectionType = [=] {
+#if 0 // todo
 		const auto transport = account->mtp().dctransport();
 		if (!Core::App().settings().proxy().isEnabled()) {
 			return transport.isEmpty()
@@ -85,6 +86,8 @@ void SetupConnectionType(
 				? tr::lng_connection_proxy_connecting(tr::now)
 				: tr::lng_connection_proxy(tr::now, lt_transport, transport);
 		}
+#endif
+		return u"TDLib"_q;
 	};
 	const auto button = AddButtonWithLabel(
 		container,
diff --git a/Telegram/SourceFiles/settings/settings_codes.cpp b/Telegram/SourceFiles/settings/settings_codes.cpp
index 718eda077d2997..bcb8a33ab9d460 100644
--- a/Telegram/SourceFiles/settings/settings_codes.cpp
+++ b/Telegram/SourceFiles/settings/settings_codes.cpp
@@ -117,6 +117,7 @@ auto GenerateCodes() {
 			}
 		});
 	});
+#if 0 // mtp
 	codes.emplace(u"endpoints"_q, [](SessionController *window) {
 		if (!Core::App().domain().started()) {
 			return;
@@ -142,6 +143,7 @@ auto GenerateCodes() {
 			}
 		});
 	});
+#endif
 	codes.emplace(u"testmode"_q, [](SessionController *window) {
 		auto &domain = Core::App().domain();
 		if (domain.started()
diff --git a/Telegram/SourceFiles/settings/settings_information.cpp b/Telegram/SourceFiles/settings/settings_information.cpp
index 7be04db17b05ef..079f87d995df47 100644
--- a/Telegram/SourceFiles/settings/settings_information.cpp
+++ b/Telegram/SourceFiles/settings/settings_information.cpp
@@ -886,7 +886,10 @@ not_null<Ui::SlideWrap<Ui::SettingsButton>*> AccountsList::setupAdd() {
 		for (const auto &[index, account] : domain.accounts()) {
 			const auto raw = account.get();
 			if (!raw->sessionExists()
+#if 0 // mtp
 				&& raw->mtp().environment() == environment) {
+#endif
+				&& raw->testMode() == (environment == Environment::Test)) {
 				found = true;
 			}
 		}
diff --git a/Telegram/SourceFiles/window/window_connecting_widget.cpp b/Telegram/SourceFiles/window/window_connecting_widget.cpp
index 8f83d321cb8927..ec872afd6aa41c 100644
--- a/Telegram/SourceFiles/window/window_connecting_widget.cpp
+++ b/Telegram/SourceFiles/window/window_connecting_widget.cpp
@@ -646,7 +646,9 @@ void ConnectionState::Widget::refreshRetryLink(bool hasRetry) {
 			tr::lng_reconnecting_try_now(tr::now),
 			st::connectingRetryLink);
 		_retry->addClickHandler([=] {
+#if 0 // todo
 			_account->mtp().restart();
+#endif
 		});
 		updateRetryGeometry();
 	} else if (!hasRetry) {