problem with Huawei G510

Hello I try to repair Huawei G510-0100 I used Medusa JTAG and only one I can make easy repair, later I try Advanced Mode and always get and error ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.

I try to do easyrepair again but still error ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.

I see can be emmc problems But I able to read boot backup. I check jtag conection and try with different speed, but error still in.

Here is log

Welcome to Medusa Box Software version 2.5.9
Selected device model: Huawei G510-0100
Connecting. Please wait…
Checking data…
VREF = 0.0V is less than required level. Please check target device power supply.
ERROR[035]: Target device has been powered off during connect.
Please connect the target device and power it on…
Checking data…
VREF = 0.0V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
Detected TAP ID: 107730E1, IR Length = 4.
JTAG speed : 1000 KHz.
VREF level : 1.77 V
CPU : Qualcomm MSM8225
Core ID : 107730E1
Storage Device: Sandisk eMMC SEM04G
Device ID : 00450001
Block size : 512 bytes
Blocks : 7733248
Storage size : 3776 Mb
Opening "E:\temp\HUAWEI_G5100100_Repair.mf" file…
Writing PARTTABLE section. Please wait…
ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.
Selected device model: Huawei G510-0100
Connecting. Please wait…
Checking data…
VREF = 1.77V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
Detected TAP ID: 107730E1, IR Length = 4.
JTAG speed : 1000 KHz.
VREF level : 1.77 V
CPU : Qualcomm MSM8225
Core ID : 107730E1
Storage Device: Sandisk eMMC SEM04G
Device ID : 00450001
Block size : 512 bytes
Blocks : 7733248
Storage size : 3776 Mb
Connect successful.
Opening "E:\temp\Huawei G510-0100 Boot 02-01-2016 23_14_15.bin" file…
Reading BOOT section. Please wait… Done
Opening "E:\temp\Huawei_G510-0100_Custom_512MB.bin" file…
Writing CUSTOM section. Please wait…
ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.
Disconnected
Selected device model: Huawei G510-0100
Connecting. Please wait…
Checking data…
VREF = 1.77V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
Detected TAP ID: 107730E1, IR Length = 4.
JTAG speed : 12000 KHz.
VREF level : 1.77 V
CPU : Qualcomm MSM8225
Core ID : 107730E1
Storage Device: Sandisk eMMC SEM04G
Device ID : 00450001
Block size : 512 bytes
Blocks : 7733248
Storage size : 3776 Mb
Connect successful.
Opening "E:\temp\Huawei_G510-0100_Custom_512MB.bin" file…
Writing CUSTOM section. Please wait…
ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.
Disconnected
Selected device model: Huawei G510-0100
Connecting. Please wait…
Checking data…
VREF = 0.0V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
Detected TAP ID: 107730E1, IR Length = 4.
JTAG speed : 9600 KHz.
VREF level : 1.81 V
CPU : Qualcomm MSM8225
Core ID : 107730E1
Storage Device: Sandisk eMMC SEM04G
Device ID : 00450001
Block size : 512 bytes
Blocks : 7733248
Storage size : 3776 Mb
Connect successful.
Write protection disabled.
Opening "E:\temp\Huawei_G510-0100_Custom_512MB.bin" file…
Writing CUSTOM section. Please wait…
ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.
Disconnected
Selected device model: Huawei G510-0100
Connecting. Please wait…
Checking data…
VREF = 0.0V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
ERROR[030]: TDO is constant high. Please check target device connection.
MI: Medusa JTAG init failed.
Selected device model: Huawei G510-0100
Connecting. Please wait…
Checking data…
VREF = 1.80V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
Detected TAP ID: 107730E1, IR Length = 4.
JTAG speed : 8000 KHz.
VREF level : 1.81 V
CPU : Qualcomm MSM8225
Core ID : 107730E1
Storage Device: Sandisk eMMC SEM04G
Device ID : 00450001
Block size : 512 bytes
Blocks : 7733248
Storage size : 3776 Mb
Connect successful.
Opening "E:\temp\Huawei_G510-0100_Custom_512MB.bin" file…
Writing BOOT section. Please wait…
ERROR[018]: Logical block operation failed at 16 Kb (Hex address 0x00004000). Reason: Command failed.
Disconnected