Method 1: Recovery flashing (recommended)
1. Download the flashing package and copy it to the device’s SD card;
2. The device enters CWM/TWRP Recovery (the original recovery cannot be flashed);
3. Flash the flash package just copied to the SD card in Recovery;
4. Restart the device and the update is completed.
Method 2: Manual replacement
1. The prerequisite for manual replacement is that your device already has ROOT permissions, and the existing ROOT permissions management tool is SuperSU. If you are using other management tools, it is recommended that you install or update by flashing;
2. Install R.E. Manager (Root Explorer);
3. Download the SuperSU APK installation package , copy to the root directory of the SD card;
4. Open the R.E. manager, copy the APK package of SuperSU in the root directory of the SD card to the /system/app directory (overwrite the file with the same name if it exists), and then Modify the file permissions to: owner (read/write), user group (read), other (read);
5. After completion, restart the device and the installation/update is completed.
Regarding the solution for binary update prompted by some machine friends:
Replace the .su file in the directory /system/bin/.ext/ (generated by supersu installation) Copy it and rename it to su, then replace the su file in the directory /system/xbin/, and then delete the su file in the directory /system/bin/.
Superuser.apk is just a Root authorization management application, suitable for upgraded versions. You cannot use this installation to root your device. You must use a third-party Recovery (referring to TWRP, CWM Recovery) to flash the SuperSU flash package. method to obtain Root permissions.
PS: If you hide the SuperSU startup icon but occasionally need to enter its interface, you can type *#*#1234#*#* or *#*#7873778#*# in the dialer. *(*#*#SUPERSU#*#*) entry without adding a shortcut from the launcher's active list.
Notes when using Android 6.0:
When your device is upgraded to Android 6.0 or above, due to the SE policy, no matter which way you use SuperSU, you must You must modify the kernel to use it. If you don't change the kernel, the screen will freeze and cannot be entered (SuperSU's official flash package uses System-less mode in Android 6.0 and automatically modifies the kernel). Since there are many uncertainties in modifying the kernel, some unforeseen problems may occur after errors are made in modifying the kernel (looking at the log output, there may or may not be an error).
For example: gravity sensor failure (this problem is fixed in v2.78 SR5), application startup exits abnormally and reports an error, no network signal, dual card changes to single card and other baseband failures (this problem is fixed in v2.78 SR5) get fixed), infinite restarts, etc. Due to the fragmentation of Android, these glitches may not exist on your device at all. You will only know if you try them yourself.
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