Mt6771 Imei — Repair

Step 1: Install Drivers

Step 2: Download and Extract

Step 3: Connect the Device

Step 4: Load NVRAM

Step 5: Write New IMEI

Step 6: Reboot

Success Rate: 85% | Difficulty: Medium

Since the MT6771 has stricter security, the older "MAUI Meta" mode used for legacy MTK chips often does not work directly or requires "Auth" bypass. Technicians typically use:

  • Free/Low-Cost Methods:

    • Caution: One wrong byte can hard-brick the radio. Mt6771 Imei Repair

    If the phone is still booting but has null IMEI, immediately perform:

    adb shell
su
dd if=/dev/block/platform/mtk-msdc.0/by-name/nvram of=/sdcard/nvram_backup.bin