Every Huawei model has a unique test point location. You must look up the exact diagram for your specific device (e.g., Huawei P30 Pro Test Point diagram) before proceeding. Step-by-Step: How to Install Huawei Test Point Drivers
If your device appears as "USB Ser" or shows an exclamation mark in Device Manager, you must update the driver manually using the files from Huawei USB COM 1.0 driver.
If your computer detects the phone but shows a driver error, follow these manual steps: Open Device Manager : Locate the "USB SER" or unknown device under Other devices Update Driver : Right-click the device and select Update driver Manual Selection Choose "Browse my computer for drivers".
Assuming you have already located the Test Point for your specific model (e.g., P30, Mate 20, Y9): test point driver huawei
Alternative multi-brand servicing modules featuring robust Huawei test point support.
Look under the section. You should see a clean entry without any warning symbols, explicitly labeled:
If a red Windows Security warning appears, select . Step 5: Verify Successful Connection Every Huawei model has a unique test point location
A reliable USB-A to USB-C cable. Avoid using USB hubs; connect directly to the computer's motherboard ports. Software Infrastructure
Before downloading and installing the drivers, ensure you have the following ready:
Windows 10 and Windows 11 block unsigned third-party drivers by default. You must temporarily disable this security feature via the Advanced Startup menu to install COM 1.0 drivers successfully. If your computer detects the phone but shows
Use a suction cup and thin plastic prying tools to carefully separate the back cover. Watch out for delicate flex cables, such as the fingerprint sensor ribbon.
Error: "Device Descriptor Request Failed" (Unknown USB Device)
Working with hardware test points requires patience and precision. Slipups with tweezers can easily scratch the motherboard traces or short-circuit the wrong components, causing permanent electrical damage. Never apply force when touching test points, and always ensure the battery is fully disconnected before shorting any contacts to prevent short circuits.