samsung SM-J700F boot repair problem [Answered]

[majub alli]

Please disconnect battery and USB cable.

Model Settings:
Interface : eMMC
Brand : Samsung
Model : SM-J700F
SRF : C:/Program Files/Medusa Pro Software/firmwareFolder/SAMSUNG_SM-J700F_EMMC_400073.srf
Voltage : 2.0V
Bus Mode : 1 bit
Bus speed : Auto

Connecting...
Device : Toshiba eMMC 400073
Page size : 512 B
Block size : 512 B
Block count : 2097152
Size : 1024.00 MB
---------------------------------------------------------------
CID Info

CID : 1101003430303037330089814FA2A2F3
Manufacturer ID : 0X11
Device/BGA : BGA (Discrete embedded)
OEM/Application ID : 0X00
Product name : 400073
Product revision : 0.0
Product serial number : (hex) 89814FA2
Manufacturing date : 10/2015
---------------------------------------------------------------
CSD Info

CSD : D07E00320F5903FFFFFFFFE78A4000D1
CSD structure : CSD version No. 1.0
SPEC version : 4.1, 4.2, 4.3, 4.4, 4.41, 4.5,
4.51, 5.0, 5.01, 5.1
Data read access time1: 8 ms
TRAN speed : 26 MHz
READ block length : 512 Bytes
WP group enable : YES
PERM_WRITE_PROTECT : NO
TMP_WRITE_PROTECT : NO
---------------------------------------------------------------
EXTCSD Info


Erase block size : 33280 Kbytes
Boot1 size : 15232 Kbytes
Boot2 size : 15232 Kbytes
RPMB size : 0 Kbytes

Partition config : (0x00) 00000000
Boot partition enable : Device not boot enabled (default) (Bus width = 1Bit)
Boot ACK : No boot acknowledge sent (default)

Boot bus conditions : (0x00) 00000000
Boot bus width : x1 (sdr) or x4 (ddr) bus width in boot operation mode (default)
Reset boot bus conditions : Reset bus width to x1, single data rate and backward compatible timings after boot operation (default)
Boot mode : Use single data rate + backward compatible timings in boot operation (default)

RST_n function : (0x00) RST_n signal is temporary disabled (default)

Max enhanced data size: 0 Kbytes
Partitions attribute : 0x20
Part setting completed: 0x0
GP partition 1 size : 0 b
GP partition 2 size : 0 b
GP partition 3 size : 0 b
GP partition 4 size : 0 b
Enhanced area size : (0x0) 0 b
Enhanced area start : (0x0) 0 b

---------------------------------------------------------------Searching Android build info...Not found
---------------------------------------------------------------
Backup EXT_CSD saved to file C:/Program Files/Medusa Pro Software/EXT_CSD Backups/400073_30_12_2017_16_33_17.bin.
Connect successful.
---------------------------------------------------------------
SW: 1.5.0; FW: 1.22.
Repairing from file "C:/Program Files/Medusa Pro Software/firmwareFolder/SAMSUNG_SM-J700F_EMMC_400073.srf".
Write data verification is enabled.

Switched to boot area partition 1.
Writing BOOT1 partition...
Write verification error 1. Possible reasons: damaged or write protected eMMC.
Disconnected.

[Medusa Box]

Hello.

As You can see from your Software log, You have not connected the device correctly or eMMC has HW problems - eMMC size (capacity) can't be 1024.00 MB:

Size : 1024.00 MB

also next sizes are also incorrect:

Erase block size : 33280 Kbytes
Boot1 size : 15232 Kbytes
Boot2 size : 15232 Kbytes
RPMB size : 0 Kbytes

Try to re-solder eMMC wires, make each of them as short as possible (max. 3-5 CM length) and try to connect again. Try to connect the device with higher Voltage level (try 2,2V-2.6V), try to set different Bus speed values. Also, You can try to remove eMMC from PCB and solder all wires directly to eMMC contacts (or use proper eMMC adapter). If the problem is still the same, probably, eMMC has HW issue(s).

Don't forget to use pull-up resistors, mentioned at eMMC pinout picture.

When the device will be corrected correctly, You can perform repair operation.