The , better known as the MediaTek Helio P60 , is a widely used octa-core chipset found in many mid-range smartphones. Repairing the IMEI on devices powered by this processor is a common necessity when a device displays an "Invalid IMEI" or "Null IMEI" error, often caused by improper firmware flashing or software corruption. Essential Preparation
The official MediaTek engineering tool (requires specific "Database" or BPLGU files for your exact model). Libera / Chimera Tool: Alternative professional suites. Step-by-Step Repair Process (General Method) 1. Preparation and Drivers Before starting, ensure your PC has the MediaTek VCOM Drivers
: For minor software glitches where the "CDS Information" is still accessible. *#*#3646633#*#* to enter Engineering Mode. Navigate to Connectivity CDS Information Radio Information Use AT commands such as AT+EGMR=1,7,"YOUR_IMEI" to manually update the entry.
How to use Infinity CM2 MTK to write IMEI to Mediatek devices Mt6771 Imei Repair
This guide explores the technical foundations of MT6771 IMEI repair, the tools required, and the safety precautions you must take before beginning.
The secure boot routine is stopping the utility from writing to the protected flash blocks.
Select (for IMEI 1) and enter the command: AT+EGMR=1,7,"YOUR_IMEI_1" . The , better known as the MediaTek Helio
When these partitions become corrupted or are accidentally wiped during a factory flash, the baseband goes "unknown" or the IMEI becomes invalid. Because the MT6771 features secure boot barriers, traditional old-school MediaTek repair methods (like simple AT commands) rarely work on modern Android versions (Android 9.0 through Android 12). Important Legal and Ethical Warning
Holds critical modem calibration and radio frequency settings. Prerequisites and Required Tools
: It is illegal in many countries to change or clone an IMEI number. This guide is strictly for restoring your device's original IMEI (found on the box or under the battery) to fix software-related issues. Libera / Chimera Tool: Alternative professional suites
Disclaimer: This guide is for educational purposes and for repairing devices with corrupted original IMEIs. Changing an IMEI to a different number is illegal in many jurisdictions. Always ensure you are compliant with local laws. Understanding the MT6771 Chipset MediaTek MT6771 , commonly known as the
If you are a rooted power user: is the fastest and most elegant solution.
The is the official software MediaTek distributes to manufacturers for writing serial numbers and IMEIs on the production line. It is the safest, most reliable free method for MT6771 devices.
Root access (Magisk or SuperSU), terminal app.
He downloaded , a specialized tool for talking to MediaTek chips in their raw "Meta Mode" state. He held the volume buttons and plugged in the USB cable, watching for the screen to freeze on a tiny "Meta Mode" logo. The Technical Duel