Note: The exact steps vary by manufacturer. Use these as a general guide and follow any official instructions accompanying the firmware.
Summary timeline
Just as he was about to give up and toss the plastic slab into the junk drawer, he found a link on page 14 of an obscure tech blog. It wasn't a standard update; it was a "community patch" labeled Pritom_M10_Phoenix_Revival . pritom m10 firmware
Dealing with FRP, lockscreen, or activation issues Note: The exact steps vary by manufacturer
Ensure you have a stable connection and at least 50% battery. Open Settings: Tap the gear icon on your home screen or in the app drawer. Navigate to System: Scroll down and tap System Update Check for Updates: pritom m10 firmware