If your firmware requires data validation, click the button next to "Database File" and load the specific .db file extracted from your device's official stock ROM. Check the boxes for IMEI 1 and IMEI 2 (if applicable).
If you need to write other addresses (Bluetooth/Wi-Fi), enable them under the menu. Execute the Write : Click Write .
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Works with modern Unisoc and older Spreadtrum CPUs. User Interface: Simplified one-click execution. 📋 Requirements SPD Drivers: Must be installed for PC-phone communication. USB Cable: A high-quality micro-USB or Type-C cable.
: Power off your device and connect it to the PC while holding the boot key (usually Volume Up or Down) to enter Diag Mode . spreadtrum imei tool v41 new
: Click on "Mode Config" to select the connection type (usually "Normal Mode" or "USB" depending on the device state).
Return to the active software application layout. Access the dropdown selector menu and choose the specific numeric COM assignment matching your Windows Device Manager reading. Click on the Mode Select options box, configure it to utilize Normal Mode (or Diag Mode if utilizing a specialized structural layout), and press the configuration confirmation selection option. Step 4: Input the Replacement Address Data
: You must load the active phone firmware database ( BPLGUInfoCustomAppSrcP... or the .pac file) into the tool settings to unlock NVRAM partitions. Legal and Ethical Compliance
The software will interface with the NVRAM block and rewrite the calibration parameters. If your firmware requires data validation, click the
: Open the WriteIMEI.exe file from the tool folder. Configure Settings : Click on Mode Select and choose "Normal Mode".
The Spreadtrum IMEI Tool v4.1 (often distributed as the WriteIMEI tool) is a highly specialized utility designed for servicing mobile devices powered by Spreadtrum (now known as UNISOC) chipsets. To fully grasp its significance, one must understand both the hardware ecosystem it serves and the broader implications of modifying device identification numbers. This tool serves a crucial function in the mobile repair industry, balancing technical utility with complex legal and security considerations.
Hold the designated for your device (usually Volume Down or Volume Up, depending on the OEM).
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The is a specialized utility designed for repairing or restoring IMEI numbers on mobile devices powered by Spreadtrum/UNISOC chipsets. It is primarily used to fix "Invalid IMEI" or "Null IMEI" issues that can occur after improper firmware flashing or software updates. Key Features of v4.1
: Supports "Normal Mode" and "Working Mode" for different device states.
Once the interface opens, click on the or gear icon to open the configuration panel. Under the connection options, select the appropriate mode. For most bricked or invalid IMEI scenarios, Calibration Mode is the most reliable choice, as it allows the tool to interface directly with the device's NVRAM before the primary Android OS boots. Step 3: Enter the Original IMEI Numbers
The specific or behavior you are seeing on screen. Which Windows version you are currently running.