Hold down the device's volume down (or volume up) boot key, then immediately connect it to the computer using the USB cable.
In the configuration window, locate the and IMEI 2 checkboxes and ensure they are enabled.
The "Spreadtrum IMEI Tool v41 updated" is likely a specific community-labeled version within the established family. It serves a vital purpose in the mobile repair ecosystem—offering a free, accessible, and effective method for restoring essential device identifiers on Unisoc (formerly Spreadtrum) Android phones.
Ensure you are using the correct Diag Mode. Reinstall the SPD drivers and try using a different USB port. spreadtrum imei tool v41 updated
In the world of mobile device repair and maintenance, few things are as critical—or as frustrating—as a corrupted IMEI number. For technicians working with Chinese brands like Itel, Tecno, Infinix, and various low-end Android devices powered by Unisoc (formerly Spreadtrum) processors, the has become an indispensable piece of software.
Monitor Windows to verify the connection registers on an active COM Port (e.g., COM63).
Launch WriteIMEI.exe , select the correct COM Port , and set the mode to Normal or Calibration depending on the device. Hold down the device's volume down (or volume
The Spreadtrum IMEI Tool v4.1 is a lightweight, Windows-based service utility designed exclusively for devices utilizing Spreadtrum/UNISOC chipsets. It communicates directly with the internal baseband and NVRAM (Non-Volatile Random-Access Memory) partitions of your device to repair corrupt or missing IMEI records. Core Mechanics
The v41 update brings several critical improvements over older versions (v36, v38, v40). Below are the key changes:
Click the or Write button on the tool's interface. The software will detect the open COM port, establish a diagnostic connection, and begin flashing the configuration data to the NVRAM partition. Step 6: Verify Completion It serves a vital purpose in the mobile
: Writes both IMEI 1 and IMEI 2 simultaneously for dual-SIM devices.
Ensure you are running the tool as an administrator. If it still fails, you may need to boot the device into a temporary root environment or use a custom scatter/pac file to clear the write protection first. "Invalid IMEI" Displayed After Reboot