How to reinstall Android OS
Follow the step by step instructions below to reinstall default android drivers on your phone:
Step 1: Turn your PC on, and for the default driver reinstallation phone, search the best ROM for your phone on any Search Engine.
Step 2: Download the best ROM for your device on PC, and then transfer the downloaded zip file to your mobile by USB or copying it in the SD card.
Step 3: The most significant task is to take a backup of your Android device on any cloud or your PC.
Now press the power button and volume button of your android device together to restart your phone is a recovery mode.
Step 4: The recovery mode will provide various options; choose the backup option to restore the data if not done already as this process will reset android OS.
Step 5: Now select ‘Install zip from SD file’ option or ‘Install ROM’ option whichever option is available in the list, this will kick start your flash process.
Step 6: Restart the android device after the flash process ends.
Your Android device will now acquire the new features of the new ROM you installed.