If your screen works but Android won't boot, use OTG + Mouse + Custom Recovery . If your bootloader is locked, you are out of luck – you need an unlocked bootloader to flash a mini recovery that can install APKs via Fastboot.
Have questions about a specific “mini” app or Fastboot command? Leave a comment below (or search for “kyfyt tthbyt bramj tshghyl Android Fastboot” for more Arabic tutorials).
Fastboot is a diagnostic and flash protocol – it is designed for installing standard apps like WhatsApp or YouTube. However, it can be used to flash custom system partitions, which allows you to: