diff --git a/README.md b/README.md
index 009d7a2..39b25db 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,86 @@
 # Install-Google-Play-Manually
 How to install google play manually on any android devices
+
+Add below lines (just betweens ByMe! comments) after about lines 5634:
+
+```javascript
+private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
+                                          BasePermission bp, HashSet<String> origPermissions) {
+        boolean allowed;
+        allowed = (compareSignatures(
+                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
+                        == PackageManager.SIGNATURE_MATCH)
+                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
+                        == PackageManager.SIGNATURE_MATCH);
+        if (!allowed && (bp.protectionLevel
+                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
+            if (isSystemApp(pkg)) {
+                // For updated system applications, a system permission
+                // is granted only if it had been defined by the original application.
+                if (isUpdatedSystemApp(pkg)) {
+                    final PackageSetting sysPs = mSettings
+                            .getDisabledSystemPkgLPr(pkg.packageName);
+                    final GrantedPermissions origGp = sysPs.sharedUser != null
+                            ? sysPs.sharedUser : sysPs;
+
+                    if (origGp.grantedPermissions.contains(perm)) {
+                        // If the original was granted this permission, we take
+                        // that grant decision as read and propagate it to the
+                        // update.
+                        allowed = true;
+                    } else {
+                        // The system apk may have been updated with an older
+                        // version of the one on the data partition, but which
+                        // granted a new system permission that it didn't have
+                        // before.  In this case we do want to allow the app to
+                        // now get the new permission if the ancestral apk is
+                        // privileged to get it.
+                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
+                            for (int j=0;
+                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
+                                if (perm.equals(
+                                        sysPs.pkg.requestedPermissions.get(j))) {
+                                    allowed = true;
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                } else {
+                    allowed = isPrivilegedApp(pkg);
+                }
+            }
+        }
+//LINE 5634 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+// ByMe! BEGIN http://www.trinea.cn/android/google-play-fc-when-download/
+	if (pkg.packageName.equals("com.android.vending") && compareSignatures(pkg.mSignatures, new Signature[]{new Signature("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")}) == PackageManager.SIGNATURE_MATCH){
+		allowed = true;
+	}
+// ByMe! END
+```
+
+Then install these APKs:
+
+```javascript
+adb install com.google.android.gms-6.6.03_(1681564-036)-6603036-minAPI9.apk
+adb install GoogleLoginService.apk (Version: 4.4.4-1227136 ; Notice: this number seen in Application Manager in android)
+adb install GoogleServicesFramework.apk (Like above line)
+adb install com.android.vending_6.1.12-80441200_minAPI9(nodpi)ByMe.apk (Version: 6.6.03(1681564-036))
+```
+
+These are not necessary probably (After we added that signature), but do it to sure:
+
+```javascript
+adb shell pm grant com.google.android.gms android.permission.INTERACT_ACROSS_USERS
+adb shell pm grant com.google.android.gms android.permission.READ_LOGS
+adb shell pm grant com.google.android.gms android.permission.WRITE_SECURE_SETTINGS
+//adb shell pm grant com.google.android.gms android.permission.ACCESS_DOWNLOAD_MANAGER
+//adb shell pm grant com.google.android.gms android.permission.CHANGE_CONFIGURATION
+//adb shell pm grant com.google.android.gms android.permission.MANAGE_USERS
+```
+
+Then run google play store application; not anything else.
+Login,
+Enjoy!
+
+*Note: It isn't tested but a alternative way to add signature, is prebuild google play store on compile time.