Manually type or scan your original 15-digit IMEI number into the input field.
Hold the designated boot key (usually or Volume Up , depending on the OEM) and connect the phone to the PC via the USB cable.
Extract the Spreadtrum_IMEI_Tool_V4.1.zip archive into a dedicated folder on your local drive. Right-click on WriteIMEI.exe and select to grant the executable full communication rights over your computer's USB sub-ports. Step 2: Configure the Connection Ports
The tool cannot communicate with your smartphone without the proper interface drivers. Download and install the official Spreadtrum USB Drivers on your Windows PC. Restart your computer after installation to ensure the drivers register correctly. Step 2: Extract and Launch the Tool Spreadtrum Imei Tool V4.1
Download the verified archive containing Spreadtrum IMEI Tool V4.1. Extract the contents using a zip utility into a dedicated folder on your local drive (e.g., C:\SPD_Tool ). Right-click on the primary executable file ( ChannelServer.exe or IMEI_Tool.exe depending on the distribution bundle) and select . Step 3: Configure the Mode and Parameters Look for the Mode or Setting tab within the user interface.
A corrupted IMEI can lead to "Not Registered on Network" errors. Even with the correct SIM card, the phone cannot authenticate with the cell tower because the ID is invalid.
Enter your 15-digit IMEI numbers into the respective fields. Manually type or scan your original 15-digit IMEI
The tool validates the final digit of the IMEI using the Luhn algorithm. If you receive a checksum warning, double-check that you did not mistype any digits. Regulatory and Safety Compliance
Open the extracted folder and launch SPD_IMEI_Tool.exe as an Administrator. Click on the tab or gear icon.
: Supports legacy Spreadtrum chipsets (SC7731, SC9832) and newer Unisoc processors. Right-click on WriteIMEI
Operates via a low-overhead, single-window execution dashboard. Core Prerequisites
Try switching the connection mode from Calibration Mode to Normal Mode .
Its primary function is to write the device's original 15-digit IMEI back to the hardware.
: Download the Spreadtrum IMEI Tool V4.1 zip file and extract it to a folder on your desktop.