g355h can not repair

g355h can not repair Z3X EasyJtag Software ver. 2.0.5.0
Loading eMMC Addon Firmware… IO: 2800 mV
Box S/N: 12FFA0095F03BB53, ,FW Ver.: 01.52
CMD Pullup Level:2072 mV
CMD Active Level:2495 mV
Can’t init device, Reason: CMD Timeout Error
Done.