I have tried to flash the M3 with both old and new OS but I am still getting the same error message as before. When I use Sp-flastool 3, the error I get is still BROM ERROR: S_DA_EMMC_FLASH_NOT_FOUND (3144). With Sp-Flshtool 5, the error I get is still BROM ERROR: S_DA_SDMMC_WRITE_FAILED (3149)