With the driver working and the phone in test point mode, you can now use specialized tools to service the phone:
What or Kirin processor are you working on?
This guide follows the manual installation method via Device Manager, as auto-installers for this driver often fail due to Windows signature policies.
Windows 10 and 11 often block third-party drivers that aren't digitally signed. Since many COM 1.0 drivers are modified for service work, you must disable this security feature first. test point driver huawei install
You may need to install a test point driver for various reasons, including:
Download the Test Point Driver from the official Huawei website or a reputable source. The driver is usually provided in a zip file, which contains the driver files and installation instructions.
Right-click on the unknown device and select "Update driver" . With the driver working and the phone in
To reveal the hardware interface to your operating system, the physical short must occur simultaneously with the computer connection:
In Device Manager, look under "Other devices." You should see an entry labeled "USB SER" or "Huawei Phone" with a small yellow triangle containing an exclamation mark (!). This indicates the driver is missing.
This driver is a necessity for performing advanced maintenance tasks, especially for old or bricked (unresponsive) Huawei devices that cannot enter Fastboot or Recovery mode. Since many COM 1
| Error Code | Issue | Solution | | :--- | :--- | :--- | | | "Windows cannot verify the digital signature for the drivers required for this device." | You need to disable Driver Signature Enforcement temporarily. Go to Settings > Update & Security > Recovery > Advanced Startup > Restart Now > Troubleshoot > Advanced Options > Startup Settings > Restart > Press 7 (Disable driver signature enforcement). | | Code 10 | "This device cannot start." (Usually accompanied by a yellow exclamation mark) | This is often a conflict. Uninstall HiSuite, then right-click the driver in Device Manager, select "Uninstall device," check "Delete driver software," then restart and reinstall the driver. | | USB SER Error | The phone shows as "Unknown USB Device (Device Descriptor Request Failed)" or "USB SER" instead of Huawei COM. | The short was not maintained during the USB connection. Repeat the shorting sequence immediately. Also, check your USB cable and use a USB 2.0 port on the back of the PC. |
After successful installation, the device will appear in Device Manager under "Ports (COM & LPT)" as Huawei USB COM 1.0 (COM5) (the COM number may vary).
Open the folder and locate the .exe installer (often named "Huawei_USB_COM_1.0_Driver_Setup"). Right-click the installer and select Run as Administrator.
A: Yes, but newer HarmonyOS builds have stricter authentication. You may need a paid service like HCU or a hardware dongle (e.g., Easy JTAG) to bypass the handshake.