: In many jurisdictions, altering an IMEI number is illegal, even if you own the device. IMEI repair is generally only intended for restoring the original, factory-assigned number found on the device's box or under the battery.

Download the archive from a trusted mobile repair forum.

The Spreadtrum IMEI Tool v4.1 is a lightweight Windows-based application specifically engineered to communicate with devices powered by Spreadtrum/Unisoc processors. The standard version of this tool often requires proprietary credentials, specific hardware dongles, or official service center permissions to access deep repair functions.