need solve bga 221
 

Z3X EasyJtag Software ver. 3.8.0.1
Loading eMMC GEN2 Firmware... IO: 2400 mV
Box S/N: 794D20531FC02DF6, ,FW Ver.: 02.53
CMD Pullup Level:2104 mV
CMD Active Level:2238 mV
Box IO Level:2400 mV
CLK Rate:36000 kHz
Bus Width:1bit,SDR
HiPower mode is ON!
---------- eMMC Device Information ----------

eMMC CID : 150100303030303030562014031443C7
eMMC CSD : 902701320F5903FFF6DB7FE08A40403B
eMMC Manufacturer ID: 0015 , OEM ID: 0100
eMMC Date: 04/2016 Rev.0x56
eMMC NAME: 000000 , S/N: 538182420
eMMC NAME (HEX): 303030303030
EMMC ROM1 (Main User Data) Capacity: 2095982 MB
EMMC ROM2 (Boot Partition 1) Capacity: 512 kB
EMMC ROM3 (Boot Partition 2) Capacity: 512 kB
EMMC RPMB (Replay Protected Memory Block) Capacity: 128 kB
EMMC RPMB is not yet programmed (clear) or RPMB Counter failure
EMMC Permanent Write Protection: No
EMMC Temporary Write Protection: No
EMMC Password Locked: No
Extended CSD rev 1.5 (MMC 4.41)
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
High-capacity WP group size [HC_WP_GRP_SIZE: 0x00000000]
Partitioning Support [PARTITIONING_SUPPORT]: 0x03
Device support partitioning feature
Device can have enhanced tech.
Partitioning Setting [PARTITION_SETTING_COMPLETED]: 0x00
---------------------------------------------

it's a dead eMMC (may be Hynix)
can not repair - only change to another