- Jul 7, 2022
Requirements:-Make sure that your device is charged to at least the 60%.
-You should also have installed the Deep-Testing Tool.
-Enable USB Debugging on your device. You need to enable this so that your device is recognized by your PC in the ADB mode.
Instructions Steps:1. Download and install the deep-testing app. For Android 11 DeepTestApkOld, For Android 12/13 DeepTestApkNew.
2.Launch it on your phone and tap on "Apply to exit in-depth tests", by pressing the green button.
3.Boot device on Fastboot mode */Power off your device and then press and hold the Power and Volume Down keys for a few seconds.
4.Download and install the adb programm on your pc.
5.Go to "C:\adb" folder and type "cmd" over the address bar, it will launch the Command Prompt.
6.Enter these commands:
"adb reboot bootloader"
"fastboot flashing lock"
7.At this point in time, you should see a confirmation message on your device. Use the Volume keys to highlight and select the Unlock the Bootloader option and hit the Power key to confirm it.
8.Go over again the Command Prompt and type "fastboot reboot".
That is it, now you have re-locked the device bootloader, leave a reply down below if you have any problems whit that.