Mt6771: Imei Repair _hot_

| 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. |

Dial *#06# . The phone should now display both IMEIs. Mt6771 Imei Repair

Unlike Qualcomm’s locked-down EFS encryption, MediaTek leaves a backdoor via Meta Mode, making repair accessible to advanced users. | Error Message | Cause | Solution |