The Spreadtrum IMEI Tool V4.1 is a lightweight Windows utility specifically designed to write, repair, or restore IMEI numbers on mobile phones and tablets that run on Spreadtrum/Unisoc processors. Unlike generic flashing utilities, this tool communicates directly with the phone’s NVRAM partition via a specialized COM port interface.
Most Spreadtrum phones enter meta-mode when powered off and connected via USB. However, the tool expects a specific state:
Look at the sticker underneath your phone battery, on the original retail packaging, or on the purchase invoice.
: Click Write . Connect the device to the PC via USB cable (sometimes while holding a boot key or inserting the battery). Spreadtrum Imei Tool V4.1
It is important to note that this software is intended for repairing original IMEI numbers that have been wiped out (showing as "Null" or "000000000000000") during software modifications. Key Features of Version 4.1
Carefully input the original 15-digit IMEI numbers into the corresponding text fields.
With Unisoc shifting to ARM’s TrustZone and hardware-backed secure elements, software-only tools like V4.1 are becoming obsolete. Newer Unisoc chips (T760, T820, T910) store IMEI in a one-time programmable (OTP) fuse. Once written at the factory, no software tool can change it . The Spreadtrum IMEI Tool V4
Supports simultaneous repairing of IMEI 1 and IMEI 2 configuration tracks.
Avoid unless you are an experienced repair technician working on your own legacy device with documented IMEI loss — and you are fully aware of the legal and hardware risks. For most users, the tool is more likely to cause permanent damage or install malware than to fix a phone. If you simply lost your IMEI, try reflashing the stock firmware first.
There are three primary scenarios where technicians reach for Spreadtrum IMEI Tool V4.1: However, the tool expects a specific state: Look
: Supports writing up to three different IMEI numbers (IMEI 1, IMEI 2, and IMEI 3) for multi-SIM devices.
It’s a third-party utility designed to rewrite, repair, or change the IMEI number on mobile devices powered by Spreadtrum (now Unisoc) processors. It’s often used when a phone loses its IMEI after a failed firmware flash, software corruption, or baseband damage.
: Unlike professional repair hardware, this is a software-only solution that works with a standard USB cable. How to Use Spreadtrum IMEI Tool V4.1