Flashing will erase all internal storage. Back up your contacts, photos, and messages to a cloud service or PC.
The most common and safest way to flash a Huawei device is using the folder method. Step 1: Prepare the Firmware huawei-ascend-g620s-l01-stock-firmware-rom-flash-file
This often indicates a faulty SD card or a corrupted UPDATE.APP file. Try formatting the SD card to FAT32 and re-copying the file. Flashing will erase all internal storage
Since the G620S-L01 uses a Qualcomm chipset, you can also use tools like or QPST if the phone is hard-bricked (not powering on or entering download mode). This requires a PC and specific USB drivers (Qualcomm HS-USB QDLoader 9008). Troubleshooting Common Issues huawei-ascend-g620s-l01-stock-firmware-rom-flash-file