: While holding the short, plug the phone into your PC. If successful, your Device Manager will show a new entry: "HUAWEI USB COM 1.0" . Download & Installation Steps
Modern Huawei devices (EMUI 12 and newer, HarmonyOS) have strengthened security. In many 2021+ models (e.g., Mate 40, P50), test points no longer grant full EDL access for resetting locks—only for authorized service centers with proprietary signing tokens.
, your flashing tools (like Unlocktool, SigmaKey, or PotatoNV) cannot "see" the phone to perform repairs. Step-by-Step: Installing the Driver test point driver huawei
To confirm that the driver is functioning correctly, open the with your phone connected via the physical test point.
Upon reboot, press or F7 to select "Disable driver signature enforcement." Step-by-Step Guide to Installing Huawei Test Point Drivers : While holding the short, plug the phone into your PC
Locate a reliable source to download the . These are usually packaged as zip files containing executable installers or raw .inf configuration files. Step 3: Run the Installer Extract the downloaded archive to your desktop.
Once the driver is installed and the test point triggers the EDL mode, you will hear the USB connect sound. Now, you can use professional software to interact with the device. In many 2021+ models (e
Kai opened his archive of repair tools. He navigated to a folder labeled Huawei USB COM 1.0 . This is the specific driver often referred to in the industry as the "Test Point Driver." It is a deceptive piece of software. It doesn’t just tell the computer how to talk to a modem; it tells the computer to recognize the phone as a serial port interface, bridging the gap between the PC's logic and the phone's coma.
Error: Yellow Triangle / Code 52 (Windows cannot verify digital signature)
: For newer security versions (HarmonyOS), a standard cable may not work. Technicians often use a modified cable with a 10k resistor between the red and green wires to force the "USB COM 1.0" state.