Mt6771 Imei Repair ((new)) -
The MT6771, 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
2. Why does an IMEI get lost?
- Bad Flash: Flashing a wrong firmware file or interrupting the process can corrupt the
NVData or NVRAM partitions.
- Formatting: Using tools like SP Flash Tool to "Format All" wipes the NVRAM, erasing the IMEI.
- Root/Modding: Failed attempts to root or patch the boot image can sometimes corrupt modem files.
⚠️ Legal Disclaimer: Changing a device's IMEI to match another device is illegal in many jurisdictions. The instructions below are strictly for restoring the device's original IMEI, typically located on the physical sticker under the battery or on the original box. 🛠️ Required Software & Files Mt6771 Imei Repair
Generic Repair IMEI (patch) on MediaTek devices with ChimeraTool The MT6771 , better known as the MediaTek
Need help identifying your exact MT6771 variant? Check the kernel version in Settings > About Phone. Bad Flash: Flashing a wrong firmware file or
Warning: This will overwrite your entire phone. Back up data first.
- Original IMEI numbers (found on device box, under battery, or on original invoice).
- USB drivers – MediaTek USB VCOM drivers installed.
- BROM/Preloader drivers – For forced download mode.
- SP Flash Tool – For backup/restore of partitions.
- Maui META Tool or SN Write Tool – Official MediaTek tools for IMEI writing.
- Root access (some methods require root, others work via meta mode).
- Backup of existing NVRAM, nvdata, and protect_f partitions (critical).
- Enable USB debugging and install proper diagnostic driver (ADB/diag).
- Use a terminal tool that can connect to the modem diagnostic port (com port) such as QPST-like or simple serial terminal.
- Common commands:
Method C — AT commands via diagnostic/serial