Mt6771 Imei Repair -

| Error Message | Cause | Solution | | :--- | :--- | :--- | | S_BROM_CMD_STARTCMD_FAIL | USB driver conflict or wrong bootloader state. | Uninstall older MTK drivers. Use the official MTK_Driver_Auto_Installer . Try a USB 2.0 port. | | Status_Invalid_Brom_CMD | SP Flash Tool version mismatch. | Use SP Flash Tool v5.2100 specifically for MT6771. | | META Connection failed (No Handshake) | Phone left META mode too early. | Power cycle the phone. Re-enable engineer mode USB ports. Reinstall MediaTek USB port drivers. | | IMEI Write Failed: Invalid Argument | You are using a DB file from a different firmware version. | Extract BPLGUInfo from the exact ROM version currently on your phone. | | DA_X64 isn't supported | 64-bit DA mismatch. | Use the MTK_AllInOne_DA.bin from the latest SP Flash Tool. |

Never pay for online “remote IMEI repair” services that ask for TeamViewer access. Many are scams. The tools listed above are completely free. Mt6771 Imei Repair

Newer MT6771 devices (Android 10+) have signed NVRAM. Maui META may fail with a S_BROM_CMD_STARTCMD_FAIL error. Use SN Write Tool instead. | Error Message | Cause | Solution |

Repairing an MT6771 IMEI involves rewriting this identifier to restore network connectivity. Essential Tools for MT6771 IMEI Repair Try a USB 2