Spreadtrum chipsets are notorious for randomly dropping IMEI after a factory reset or OTA update. V41 fixes this reliably. In my testing, 19 out of 20 phones showed proper IMEI and network registration immediately after writing.
: Users select the correct COM Port within the tool and set the mode (e.g., "Normal Mode").
Disclaimer: Rewriting IMEI numbers is legally permitted only for restoring a device's original factory identity after software corruption. Changing an IMEI to mimic another device is illegal in many jurisdictions. Prerequisites: spreadtrum imei tool v41 better
Spreadtrum IMEI Tool v4.1 (also known as the tool) is a specialized utility used to restore or repair International Mobile Equipment Identity (IMEI) numbers on devices powered by Spreadtrum (now Unisoc) chipsets. Tool Overview and Use Cases
Click on , choose Normal Mode , and click Select to lock in the configuration. Spreadtrum chipsets are notorious for randomly dropping IMEI
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | Device not detected in Device Manager | Missing or incorrect USB drivers | Download and install SPD USB drivers for your Windows version | | Tool shows “Port (none)” | Device not in DIAG Mode | Reboot device into diagnostic mode and reconnect | | Write operation fails | Incorrect COM port selection | Verify COM port number in Device Manager and select the correct one | | “No Service” persists after writing | Incorrect IMEI entered | Double-check original IMEI from device box or under the battery | | Tool crashes on launch | Antivirus interference | Add tool folder as an exception or temporarily disable antivirus |
The tool provides a comprehensive interface for writing unique device identifiers back to the hardware: : Users select the correct COM Port within
: These professional services are frequently cited by technicians as more reliable for newer models (like Tecno/Infinix Unisoc chips) because they bypass newer security authentication that older standalone tools cannot. TFM Tool Pro
: In many countries, changing an IMEI to avoid blacklisting or for fraudulent purposes is illegal . This tool should only be used for legitimate repair of a device's original IMEI.
If you have ever dealt with an "Invalid IMEI" or "No Service" error on a Spreadtrum-powered device, you know how frustrating it can be. While there are many versions of the WriteIMEI tool floating around, has emerged as a preferred version for technicians and DIY enthusiasts alike.
Based on extensive testing and feedback from technicians worldwide, the answer is a clear . The tool’s expanded IMEI capacity (up to four numbers), Excel batch loading, automatic continuous operation, color-coded status updates, built-in version verification, and multi-language interface represent meaningful improvements over earlier versions.