If Windows displays "Unknown USB Device" instead of Huawei USB COM 1.0, your testpoint connection was unstable. Unplug the cable, re-verify your motherboard grounding point, and try bridging the connection again.
After the process completes, the phone may turn on in fastboot mode or enter "Board Firmware Mode". You may need to flash standard firmware afterwards to make it functional. Important Precautions
: IDT 20 is an advanced tool. Incorrect usage can permanently damage your device’s bootloader or NAND flash memory. huawei flash tools idt 20
Click the button (often represented by a green play arrow) on the main interface.
Do not wipe the oeminfo partition unless you have a specific backup, as it contains device-specific info like IMEI and Serial Number. Troubleshooting & Alternatives If IDT 20 does not detect your device: If Windows displays "Unknown USB Device" instead of
Flashes factory firmware regardless of the device's bootloader lock status. Prerequisites and Required Files
Using IDT is not a simple software fix; it's a hardware-level intervention. Before you start, ensure you have: You may need to flash standard firmware afterwards
: Run the IDT executable as an administrator and use the Browse button in the "Download Settings" to select the Image XML File from your firmware folder.
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