I have designed a board with iMX6 processor. It is powered up and basic testing is done. I am trying to using Mfgtool2 to download my uboot image to SD card. . I have powered the board an connected the OTG USB port to PC. After that i have opened the Mfgtool2 application. But when i open the tool it is not working The error i am getting is given below. (error code:4). I am also attachint the log file for the details. Can anyone help on this?