You used firmware for a different hardware revision. "1H10" is strict. Search for a build specifically labeled SP9853i_1H10_VMM_FIX . Try a different USB port or disable antivirus (real-time scanning can interrupt VMM flashing).
If the firmware isn't perfectly matched to the car's Canbus box, the unit may lose the ability to talk to the car's AC system or steering wheel buttons. Conclusion sp9853i 1h10 vmm firmware update free
Updating firmware carries risks. Always back up your important apps or data before starting. Ensure your car battery is stable or keep the engine running so the unit does not lose power mid-flash. You used firmware for a different hardware revision