Release the button once the computer plays a connection sound and the software progress bar moves. Step 5: Finalizing the Process
The answer varies by country.
Ensure drivers are properly installed. Check your device manager to see if the device is listed under Com Port (Spreadtrum diagnostic port). Connection Errors: Try a different USB port or cable.
The tool is designed to work with standard Spreadtrum database file formats.
Install the latest SPD USB Drivers on your PC to ensure connectivity. Windows PC: A functional computer running Windows USB Cable: A high-quality USB cable to connect the phone. spreadtrum imei tool v41 updated
: The device is typically connected via USB in a specific mode (often by holding a boot key or through software commands) until it appears as a COM port in the Windows Device Manager.
The remains the gold standard for free, offline IMEI repair on Unisoc-powered devices. Whether you are a professional repairing dozens of phones daily or a hobbyist fixing your own Tecno Spark, this tool offers a reliable, fast, and effective solution.
: Extract the Spreadtrum IMEI Tool v4.1 zip file and run the executable ( ChannelServer.exe or WriteIMEI.exe ) as an Administrator. Configure Settings : Click on the Setting or gear icon.
: Ensure you loaded the correct NV database file from the corresponding firmware version. Try changing the connection mode in settings from "Normal" to "Calibration." Release the button once the computer plays a
Disconnect the device, reinsert the battery if removable, and power it on. Verify the restoration by dialing *#06# on the device keypad. Troubleshooting Common Errors 1. Device Not Detected (Waiting for USB Port) Improperly installed USB drivers or faulty cables.
Boot the device into (usually by holding a specific key combination while plugging in the USB, or via software methods). 3. Configure the Tool Click on Set in the top menu.
Re-enter the digits. Let the tool auto-calculate the final 15th digit if the option is available, or ensure it matches your box exactly. Final Verdict
: It is entirely legal to use this software to restore your phone’s original factory-issued numbers if they were accidentally erased during software development, flashing, or rooting. Check your device manager to see if the
Included in the suite are utility features:
When a device undergoes a hard reset, a custom ROM installation, or an improper firmware flash, the NVRAM (Non-Volatile Random-Access Memory) data can become corrupted. This results in an "Invalid IMEI" or "Null IMEI" status, completely disabling cellular networks, text messaging, and mobile data. Version 4.1 introduces updated database configurations and broader chipset support to fix these issues seamlessly. Key Features of the Updated v4.1 Version
The tool is often distributed on file-sharing sites. Download only from reputable sources or technician forums (like GSM-Forum, XDA Developers) to avoid malware.