Spreadtrum IMEI Tool v41 is an updated utility designed for devices using Spreadtrum/Unisoc chipsets. It provides technicians and advanced users with tools to read, write, back up, and restore IMEI and other device identifiers. The v41 release focuses on improved chipset compatibility, stability fixes, and streamlined user experience.

: Users input the correct IMEI into the tool's interface, select the corresponding COM port, and execute the write command. A "Pass" message indicates a successful update. Important Considerations

Launch WriteIMEI.exe , select the correct COM Port , and set the mode to Normal or Calibration depending on the device.

Before you attempt to use the Spreadtrum IMEI Tool v41 Updated, ensure you have:

If you need to repair a lost IMEI after flashing a phone and you are the legitimate owner, I recommend:

If you work in a high-volume mobile repair shop or specialize in Chinese processor-based devices (Unisoc/Spreadtrum), you know that firmware flashing is only half the battle. The other half is post-repair restoration —specifically, restoring null or corrupted baseband data.

: Can also update and repair Bluetooth addresses, Wi-Fi addresses, and Serial Numbers (SN). How to Use Spreadtrum IMEI Tool v4.1