I got an answer after survey more webpages,
error during transfer means that time-out error happened while read from storage.
1) For check H/W side Can you try again after re-connect the CPU board? Connection of CPU board can be loosen during delivery.
2) For check S/W side I'd like to ask for make sure, did you use our bootloader? Previous version of Linaro's bootloader can happen those thing depend on situation.
If you still have problem then it might be eMMC problem.
more over, this error code(TIMEOUT) is -19