The official China Mobile M654 firmware receives rare updates, usually only to patch security holes. If your device works, leave it alone. But if you are locked to China Mobile, suffering random reboots, or need band 40 aggregation, a carefully chosen custom firmware can transform the M654 into a powerful, unlocked LTE router.

If you're looking to update or modify the firmware of your China Mobile M654, here are some general steps you might consider:

Flashing the stock ROM can resolve several critical device issues:

If you cannot find the firmware or the phone is still functional, you may only need a hard reset:

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