If your device still boots but needs a software refresh, these official methods are safer: official Huawei PC tool for system recovery and updates. Dload Method : Place the update.app file in a folder named on an SD card. Turn off the phone, then hold Volume Up + Volume Down + Power simultaneously to trigger the local update. Important Safety Note : Flashing board software with IDT will erase all data
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Use it with respect, always double-check the loader, and remember: the brick you save might be your own. huawei flash tools idt 20