Rkpx3 Mcu Update [verified]
This is the "high-level" method for working devices.
Navigate to Settings > About Device . Tap "Android version" multiple times to see the build details. Android 4.4 (KitKat): Typically uses update.img . Android 7.1 (Nougat): Typically requires a px3.img file. rkpx3 mcu update
Best for routine updates when the unit is functioning normally. This is the "high-level" method for working devices