: Compatible with both Diag Mode (universal factory protocol) and Normal/MTP Mode .
The v41 update is likely the last stable version using the classic BROM exploit. Future repairs may require authorized dongles (like Unisoc’s own SPD Tool). That is why downloading and mastering v41 now is essential for any repair technician.
Works via Calibration mode or Normal mode. USB Parameters: Automatic detection of COM ports. spreadtrum imei tool v41 updated
For dedicated Spreadtrum/Unisoc users, v41 is the best free option available.
Running Windows 7, 8, 10, or 11 (32-bit or 64-bit). : Compatible with both Diag Mode (universal factory
The is a specialized Windows-based utility designed to repair or restore original IMEI numbers on mobile devices powered by Spreadtrum (SPD) and UNISOC chipsets. This version is widely used by technicians to address issues like "Invalid IMEI," "Null IMEI," or network connectivity problems following a firmware flash. Key Features of Version 4.1
Windows 7, 8, 10, or 11 (32-bit or 64-bit architectures). That is why downloading and mastering v41 now
: Capable of writing IMEI 1 and IMEI 2 simultaneously.
A large information box displays detailed logs of the write process, while a status bar shows states such as "Idle," "Writing," "Finished," "Unmount," or "Error".
The v4.1 update is the latest stable release of the official Spreadtrum/Unisoc configuration tool. It communicates directly with the device's NVRAM (Non-Volatile Random-Access Memory) data. Key Technical Features Write IMEI 1 and IMEI 2 simultaneously.
Includes safety toggles to read and backup existing NVRAM partitions before executing a rewrite. System Requirements