: The unit will reboot into a black recovery matrix screen with a progress bar. Do not touch the screen or turn off the car ignition.
Before proceeding, always back up your original ROM and MCU . If anything goes wrong, you may need to revert to the factory state, and having a backup is crucial. sp9853i 1h10 vmm firmware update
Ensure the build version matches "1H10 VMM" exactly. Using firmware for a standard SP9853i may cause hardware incompatibilities. : The unit will reboot into a black