Sp9853i 1h10 Vmm !!link!! May 2026

turn off the car or touch the screen during the process, which usually takes about 7–15 minutes.

Because the SP9853i uses an rather than standard ARM Cortex, its boot chain and security layers are unique. This uniqueness makes the "1h10 VMM" error specific to this family of chips. Sp9853i 1h10 Vmm

For SP9853i, Vmm should be set to 1.1V – 1.2V in normal operation. If you see “1h10” in a log or error dump, it may indicate a PMIC (SC27xx series) communication timeout or undervoltage during boot stage 1, step 10. Check Vmm rail stability with an oscilloscope, especially during power-on ramp (expect ≤10 ms to stable). If Vmm dips below 1.05V at boot, the SoC may halt at that stage. turn off the car or touch the screen