Huawei Otg Update Mode

: The device should have at least 30% to 50% battery power to prevent shutdown during the critical flashing process.

: Plug the prepared USB drive into the phone’s charging port using the OTG adapter. huawei otg update mode

Problem: Phone vibrates but screen stays black. No ADB, no fastboot. Solution: Charge phone, prepare OTG drive with full firmware, use hardware key combo (Vol Up+Down+Power). The screen may remain black, but the vibration pattern changes during flashing. Wait 15 minutes. : The device should have at least 30%