Firmware - China Mobile A4s

Flashing firmware will erase all user data (contacts, photos, messages). Ensure you have a complete backup.

There are two primary methods to update the China Mobile A4s firmware: china mobile a4s firmware

If you’re maintaining a fleet of A4s devices or recovering a bricked unit: Flashing firmware will erase all user data (contacts,

Browse to your extracted firmware folder, select the .pac file, and wait for it to load into the tool. select the .pac file

adb shell pm uninstall -k --user 0 com.chinamobile.services adb shell pm uninstall -k --user 0 com.mediatek.bluetooth adb shell pm uninstall -k --user 0 com.android.stk

The tool will automatically load all the system partitions (such as boot, recovery, and system). In the drop-down menu, ensure is selected.