G7102 how to reapir emmc

Z3X EasyJtag Software ver. 2.0.6.6
Loading eMMC Addon Firmware… IO: 3300 mV
Box S/N: 09015011E1EFF5C6, ,FW Ver.: 01.52
CMD Pullup Level:2010 mV
CMD Active Level:2444 mV
eMMC Device Information
EMMC CID : 15010038574D423352003C545B173150
EMMC CSD : D02701320F5903FFF6DBFFEF8E40400C
EMMC Manufacturer ID: 0015 , OEM ID: 0100
EMMC Date: 03/2014 Rev.0x0
EMMC NAME: 8WMB3R , S/N: 1012161303
EMMC NAME (HEX): 38574D42335200
EMMC ROM1 (Main User Data) Capacity: 7456 MB
EMMC ROM2 (Boot Partition 1) Capacity: 2048 kB
EMMC ROM3 (Boot Partition 2) Capacity: 2048 kB
EMMC RPMB (Replay Protected Memory Block) Capacity: 2048 kB
EMMC Permanent Write Protection: No
EMMC Temporary Write Protection: No
Extended CSD rev 1.7 (MMC Unknown)
Boot configuration [PARTITION_CONFIG: 0x00] No boot partition configured.
Boot bus config [177]: 0x00 , width 1bit , Partition config [179]: 0x00.
H/W reset function [RST_N_FUNCTION]: 0x00
Backup saved: 8WMB3R_1012161303_20160106_2005.extcsd
Done.