Once you have downloaded the tool, follow these steps to unlock your modem:
Compatible with older 8-digit unlock codes as well as newer algorithmic codes.
Always scan the downloaded archive using updated security software before extracting the executable. Download Huawei Modem Code Writer V1.0b
Unzip the downloaded file (use password if prompted).
Disclaimer: This article is for educational and archival purposes only. Unlocking or modifying modem firmware may void warranties or violate local telecommunications laws. Always ensure you own the device before attempting any modifications. Once you have downloaded the tool, follow these
Note the specific COM port number assigned to the "Huawei Mobile Connect - 3G PC UI Interface". Step 3: Operating the Code Writer
Unlike dashboard software, Code Writer V1.0b does not perform checksum validation before writing. A single incorrect write (e.g., wrong code length or mismatched NV item) can overwrite the modem’s RF calibration data, turning the device into a non-functional brick. Disclaimer: This article is for educational and archival
Extract the contents of the archive using an archive utility like WinRAR or 7-Zip to a dedicated folder on your desktop. Prerequisites Before Running the Tool
If you can provide the of your Huawei modem, I can tell you if this tool is the best fit or if you need a newer method.
Extract the downloaded ZIP file and launch Huawei Modem Code Writer.exe as an Administrator. Step 4: Detect the Device Inside the application interface: Click the dropdown menu.
A Complete Guide to Huawei Modem Code Writer V1.0b Unlocking your Huawei 3G or 4G modem allows you to switch carriers and use any SIM card worldwide. If your device prompts you for an unlock code but lacks a direct user interface to enter it, you need a specialized utility tool. is a lightweight, trusted Windows application designed specifically to force-feed unlock codes into stubborn Huawei data cards and dongles.