Redmi 7a Flash File Here

The Redmi 7A requires EDL Mode (Emergency Download Mode) to be flashed if the device is bricked. This is a specialized mode that bypasses the need for the phone to be fully turned on.

Yes, if you choose "Clean All" in Mi Flash Tool, everything (photos, apps, contacts) will be deleted. Back up via Google Drive or Mi Cloud before flashing. redmi 7a flash file

No, but you can modify the flash file to flash Project Treble GSIs. That is an advanced topic. The Redmi 7A requires EDL Mode (Emergency Download