This usually happens after an incompatible MCU update. You must use on a PC to flash a clean dump. Missing Car Logo
If your phone still turns on but is stuck on the "Optimizing apps" screen or is incredibly slow after the update, try these steps first. zxdz 01 android update fix
This clears the temporary system files that the update corrupted. It fixes 70% of "update failed" symptoms without deleting your photos. This usually happens after an incompatible MCU update