Do NOT use generic SP9853i firmware. It must be 1H10 VMM specific. Look for filenames like:
Now flash these files to the target device using the same SP Flash Tool method. sp9853i 1h10 vmm firmware update
dmesg | grep -E "VMM|hypervisor|acpi"
Otherwise, the device will reboot back into 1h10 on the next power cycle. Do NOT use generic SP9853i firmware