Spreadtrum Imei Tool V4.1 [top] May 2026

Ensure the latest SPD/UNISOC USB drivers are installed on your PC so the device is recognized in "Diag Mode".

Click "Set" or "Mode Select" and choose "Normal Mode" or "Calibration Mode" depending on your device's state. Spreadtrum Imei Tool V4.1

It can repair IMEI 1 and IMEI 2 for dual-SIM devices. Ensure the latest SPD/UNISOC USB drivers are installed

Unlike professional service boxes, this software-only solution can often be used for free. How to Use the Tool Spreadtrum Imei Tool V4.1

The device typically needs to be in Diagnostic (Diag) mode. This often requires holding specific volume buttons while connecting to a PC. Configure Settings: Launch WriteIMEI.exe .

Input the original 15-digit IMEI numbers found on your device's box or under the battery.