The official MediaTek SN Write Tool can be used on a PC. You will need the specific "Database" files (usually named BPLGU... and APDB... ) that match your exact firmware version to successfully write the number back to the hardware.
Select the database file that matches your phone's current firmware. Step 5: Write the Original IMEI Type your original 15-digit IMEI number into the box.
If you are unable to access these menus, it is recommended to visit a professional service center, as specialized hardware interfaces may be needed to fix corrupted partitions Airtel .
Repairing an IMEI is a technical process that involves flashing the unique identification number back into the phone's non-volatile random-access memory (NVRAM).
The International Mobile Equipment Identity (IMEI) is a 15-digit unique code that identifies your device on a cellular network. Think of it as a social security number for your phone. When you perform an , you are rewriting this code to the NVRAM (Non-Volatile Random Access Memory) partition of the chipset. Mt6771 Imei Repair
The SN Writer Tool is the official MediaTek tool, making it the most reliable method.
Before attempting an IMEI repair on an MT6771 device, complete these preparation steps to prevent permanent bricking. 1. Enable USB Debugging and OEM Unlocking Open > About Phone . Tap Build Number 7 times to unlock Developer Options. Go back to Settings > System > Developer Options . Enable USB Debugging and OEM Unlocking . 2. Install Required Device Drivers
: Stores permanent hardware calibration data, including WiFi/Bluetooth MAC addresses and the IMEI.
Select "Dual IMEI" (if applicable) and input your IMEI numbers. The official MediaTek SN Write Tool can be used on a PC
Ensure you have the required NVRAM database files for your chipset.
If you experience any of the above, the phone’s software has lost its identity. The hardware is likely fine, but the logical IMEI storage is corrupt.
| Tool Name | Best For | Difficulty | Cost | |-----------|----------|------------|------| | | Direct IMEI write via Meta Mode | Medium | Free | | SN Write Tool 2.0 | Batch writing IMEI, MAC, BT address | Medium | Free | | CM2 (China Mobile 2) | Dead phone repair + IMEI recovery | High | Paid (dongle) | | Miracle Box Key | Automated MT6771 repair with one click | High | Paid | | UnlockTool (by Z3X) | Supports Xiaomi MT6771 specifically | Easy | Paid |
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Paid professional tools like ChimeraTool and Z3X offer "one-click" solutions but are often required for newer Android security protocols on the P60. These tools utilize "Patch" methods that do not just write the IMEI but modify the nvdata partition signature to accept the value.
Comprehensive Guide to MT6771 IMEI Repair: Tools, Methods, and Troubleshooting
SN Write Tool is another official MediaTek utility designed to write serial numbers and IMEIs to factory-flashed devices. It is more reliable than Maui META for certain MT6771 variants (e.g., Tecno and Infinix).