Ensure the test point is correctly bridged and the cable is high quality. Alternative Method: If using specialized software like Smart-Clip2

| Error Message | Cause | Solution | | :--- | :--- | :--- | | Device not recognized | Bad short or loose USB connection | Clean test points with alcohol. Use a finer tweezer. | | Driver Signature Error (Code 52) | Windows 10/11 security | Restart PC → Disable Driver Signature Enforcement (Shift+Restart → Troubleshoot → Startup Settings → Disable driver signature). | | Failed to open COM port | Driver installed but wrong port | Go to Device Manager → Ports → Right-click Huawei COM port → Properties → Port Settings → Advanced → Change COM port to COM1-COM4. | | BROM ERROR: S_BROM_CMD | Wrong cable or faulty motherboard | Use a short, high-quality USB 2.0 cable. Avoid USB hubs. |

While holding the short, connect the device to your PC via a USB cable. : Open Device Manager on your Windows PC.

If your device shows up as "USB SER" in Device Manager, follow these steps to fix it manually: Open Device Manager : Right-click the Start button and select Device Manager Locate the Device : Look under "Other devices" for Update Driver : Right-click "USB SER" and choose Update driver Choose Manual Path "Browse my computer for drivers"

If you are trying to , remove a forgotten ID (FRP) , or downgrade the firmware , you need the Test Point driver to work perfectly. Without it, your PC won't talk to the phone's emergency download mode.

The "install" button on his console was red. Not crimson, not scarlet. The color of a stoplight defied.