Repair eMMC of Samsung SM-J700H question [Answered]

[..::Waqar::..]

hi experts can you explain me about that error...

Model Settings:
Interface : eMMC
Brand : Samsung
Model : SM-J700H
SRF : C:/Program Files (x86)/Medusa Pro Software/firmwareFolder/SAMSUNG_SM-J700H_EMMC_AJNB3R.srf
Voltage : 1.8V
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 : 110100343030303733000C84A393B235
Manufacturer ID : 0X11
Device/BGA : BGA (Discrete embedded)
OEM/Application ID : 0X00
Product name : 400073
Product revision : 0.0
Product serial number : (hex) C84A393
Manufacturing date : 11/1999
---------------------------------------------------------------
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

Revision 1.0 (for MMC v4.0)
Erase block size : 0 Kbytes
Boot1 size : 0 Kbytes
Boot2 size : 0 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 : 0x0
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 (x86)/Medusa Pro Software/EXT_CSD Backups/400073_06_05_2018_16_53_39.bin.
Connect successful.
---------------------------------------------------------------


SW: 1.5.8; FW: 1.23.

• full erase failed
• Factory format done
• smart repair failed
• by factory file repair failed
• remove write protection failed

what can i do to fix that

regards

[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 : 0 Kbytes
Boot1 size : 0 Kbytes
Boot2 size : 0 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 to set 2.0-2.4V), 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).

[toninhosantos]

Originally Posted by ..::Waqar::..

hi experts can you explain me about that error...

• full erase failed
• Factory format done
• smart repair failed
• by factory file repair failed
• remove write protection failed

what can i do to fix that

regards

Most of these errors are communication problems, as it reads, but does not appear the information of the EMMC chip, appears 000000, sometimes the reading is normal, but does not write, does not erase and does not back up. This happens due to lack of voltage in the DATA and also in the CMD, I solve by placing resistors of elevation of tension in these signals. It is time for the team to launch a new adapter that contemplates various lifting resistors, because some brands of EMMC chip does not work, or does not work properly without them. From the experience I have in this type of ISP repair I have noticed that the EMMC Chip branded Samsung are not choosy about lifting resistors.
I have used 100 ohms and 150 ohms on just about every EMMC chip when they are required.
We need a new urgent adapter.

Sorry for bad English