The v4.1 release is frequently cited as the "best SPD IMEI tool" because it simplifies complex repair processes that previously required expensive hardware boxes.
Connect your device to the PC and ensure it enters Diag Mode . You can verify this by checking for an "SPD U2S" port in the Windows Device Manager .
This version offers significantly improved speed and stability, making it more reliable for both professional technicians and beginners. Key Features of Version 4.1 Technicians prefer v4.1 for its streamlined toolkit: spreadtrum imei tool v41 better
Beyond just IMEI, v4.1 allows you to write other critical identifiers like Bluetooth addresses, Wi-Fi addresses, and serial numbers .
Supports one-click factory resets, FRP (Factory Reset Protection) removal, and restoring original IMEI numbers. The v4
Set the tool to "Normal Mode" and click "Select".
To use the tool effectively, your computer must have the correct UNISOC/SPD drivers installed. Set the tool to "Normal Mode" and click "Select"
Open WriteIMEI.exe and select the corresponding COM port identified in the Device Manager.