Install via OTA or HiSuite. Avoid manual dload flashing unless you are an advanced user.
Wipe cache partition from recovery mode to remove residual files from EMUI 9.1. STK-LX3 10.0.0.261-C69E8R1P2--Firmware-EMUI10.0.0
| Issue | Frequency | Workaround | | :--- | :--- | :--- | | | Universal | Normal; system is re-caching apps. Settles after 2-3 charge cycles. | | Google Play Services notification "Device is not Play Protect certified" | Occasional (C69 region) | Clear cache for Google Play Services. If persists, re-register device ID manually. | | Gesture navigation conflict with third-party launchers | Medium | Use EMUI launcher or install QuickSwitch (requires root). | | VoLTE toggle missing on certain carriers | Carrier-specific | Dial *#*#4634#*#* in the phone app to access VoLTE debug menu. | Install via OTA or HiSuite