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Samsung USB Drive HM252HX

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coptere

Post subject: Samsung USB Drive HM252HX

Posted: October 8th, 2013, 13:44

Joined: August 8th, 2013, 6:12
Posts: 21
Location: france

Hi everybody,

My usb connector on my samsung usb drive 250go is broken and it seems really difficult to repair so i decided to explore others possibilities as described here.
I have already post in another topic my exact situation with (bad) pictures to describe it.

Model: HM252HX
HDD P/N: HM252HX/VPK
PCB Number BF41-00282A 00
PCB Info M7S-S_Line Rev .01 R00
Number of Main Chip: 88i8823-TFJ2

I'm always on the same issue but now i'm exploring TTL access in order to debug/dump/flash rom.

For remember, i have read what others people had done and removed the 4 capacitors, connected Tx ( +/-) and Rx ( +/-) from the pcb to a sata connector without any result.

When i powered up, blue light was on and i heard the disk rotation.
Here is my TTL dump (TTL information take time to appear .... but I leave it, the more I see ). I press escape at the end.

Code:

*PA VID=0007 PN=0000 Rev=0004
                             *PA VID=0007 PN=0000 Rev=0004
                                                          PSL
                                                              U
S_0Shock▒*PA VID=0007 PN=0000 Rev=0004
                                      *PA VID=0007 PN=0000 Rev=0004
                                                                   PSL
                                                                       U
S_0Shock Sensor Circuit Enabled
SO_1
Init RPM=0
IS=3
CLA #36/75
Handoff RPM=673
*PA VID=0007 PN=0000 Rev=0004
                             *PA VID=0007 PN=0000 Rev=0004
                                                          PSL
                                                              U
S_0Shock Sensor Circuit Enabled
SO_1
Init RPM=1112
Handoff RPM=1203
SPOK
mS1 00000003
*PA VID=0007 PN=0000 Rev=0004
                             *PA VID=0007 PN=0000 Rev=0004
                                                          PSL
                                                              U
S_0Shock Sensor Circuit Enabled
SO_1
Init RPM=4222
Handoff RPM=4207
SPOK
mS1 00000003
*PA VID=0007 PN=0000 Rev=0004
                             *PA VID=0007 PN=0000 Rev=0004
                                                          PSL
                                                              U
S_0Shock Sensor Circuit Enabled
SO_1
Init RPM=4223
Handoff RPM=4209
SPOK
mS1 00000003
*PA VID=0007 PN=0000 Rev=0004
                             *PA VID=0007 PN=0000 Rev=0004
                                                          PSL
                                                              U
....
See attachement for more info

Can someone help me to interpret ttl dump ?
Which command can i execute on debug line ?
I downloaded SRT but i have an issue with administrative privilege.

Thank you in advance for any suggestions

PS: Sorry for my english

Attachments:

dump.txt [7.45 KiB]
Downloaded 934 times

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coptere

Post subject: Re: Samsung USB Drive HM252HX

Posted: October 9th, 2013, 18:27

Joined: August 8th, 2013, 6:12
Posts: 21
Location: france

Hi,

No answer yet but I'm working on my side and tell my story for others who need help.

Episode 2:
When I power up the disc, there is clicking noise.
So, I suspected a problem of head.
I tried the SD (spin-down) command and it went without error, but the SU command make clicking noise too.

I tried another USB drive that works for check my comand and results and it did the same thing when I plug 1 single USB cable, if I connect 2 USB calbe it works ...

I therefore conclude that I have a power problem on my broken hdd.
Now, I power up with another source and IT WORKS.
I can type all the commands like LB/LD/L4/LT/LS....

But with the LB (BIRSLT view), it doesn't give me the firmware version....

Code:

PA VID=0007 PN=0000 Rev=0004
                                   *PA VID=0007 PN=0000 Rev=0004
                                                                PSL
                                                                    U
S_0Shock Sensor Circuit Enabled
SO_1
Init RPM=0
IS=1
CLA #36/77
Handoff RPM=670
SPOK
mS1 00000003
A1O=114 A1G=435
O=516 S=5
SK C:  4564 H:0
Loaded FIT ( 0: 0: 1)
ServoTable Loaded. Rev: 0x17
Reso Table Loaded
RRO1X Read OK
Overlay Code Loaded to 0x1004E000
FdtTable Loaded. Rev:0x01
[GL][90PT:0520,00DB]
Reading Serial Num Pass
Up MC

PwrOn RRO1x @ H0
Table) cos = -174848, sin = -1043968
Coeff) cos = 112100, sin = -26367

DiskSlip : 97 [SrvTrk]
DiskSlip : 98 [SrvTrk]
TgtCyl:     842
Hd:   0 Zn:   0 Avg.:     224
TgtCyl:  169771
Hd:   0 Zn:   1 Avg.:    1033

SVCAL(0080,0000)-->PASS
RecordValid Ok : 0107E47D 0107E41D
ReadyTime = 2960 ms
PwrOn NoLink
ENG>LB
| SerialNo |33031F12AA4XW3
| FWREV    |????????????????
| BIStat   | 0000FFFF |
| StopCond | 0000FFFF |
| LastCmd  | 0000FFFF |
| LastStp  | 0000FFFF |
| ErrCnt   | 0000FFFF |
| TACnt    | 0000FFFF |
| DfCnt    | 0000FFFF |
| FailErr  | 0000FFFF |
| LastCyl  | FFFFFFFF |
| LastHead | 0000FFFF |
| LastSect | 0000FFFF |
|AvailZone0| FFFFFFFF |
|AvailZone1| FFFFFFFF |

Next step, soldering the SATA connectors.

But i think i need the firmware ....I'm rigth ?

Thanks

Attachments:

fullcommanddump.txt [3.05 KiB]
Downloaded 948 times

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labtech

Post subject: Re: Samsung USB Drive HM252HX

Posted: October 9th, 2013, 21:16

Joined: August 18th, 2010, 17:35
Posts: 3669
Location: Massachusetts, USA

I think the situation is getting worse and worse. The simplest solution was to have fixed the USB connector or simply replace it.

_________________
Hard Disk Drive (HDD), Solid State Drive (SSD, SATA, NVMe, etc), USB Flash Drive and RAID Data Recovery Specialist in Massachusetts

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coptere

Post subject: Re: Samsung USB Drive HM252HX

Posted: October 10th, 2013, 5:22

Joined: August 8th, 2013, 6:12
Posts: 21
Location: france

Hi,

It may be difficult because i have not place to soldering another USB connector and i have already remove all capacitors to connect Sata cable.

Pictures to explain (taken from another post):

Red lines (2,3 usb pins) are gone

Attachment:

usbconnector.JPG [ 14.37 KiB | Viewed 11093 times ]

and capacitors (green) are removed.

Attachment:

satacapacitor.JPG [ 12.45 KiB | Viewed 11093 times ]

Can i replace those capacitors ? and can i plug my usb connector elsewhere ?

I don't understand how can i read serial number or execute command but i can't have firmware number !? something wrong with a module ?
can i dump all module via ttl ? DR command ?

Thank you

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coptere

Post subject: Re: Samsung USB Drive HM252HX

Posted: October 22nd, 2013, 15:51

Joined: August 8th, 2013, 6:12
Posts: 21
Location: france

Hi all,

Episode 3: Soldering sata connector done !!

I plugged sata cable on usb adapter (I just have a portable computer). After trying many positions (T+ (hdd) > R+ (sata cable), T+ > T+, ...), i have more information in terminal screen since the last time.

Code:

...
PwrOn RRO1x @ H0
Table) cos = -174848, sin = -1043968
Coeff) cos = 125652, sin = -38251

DiskSlip : 97 [SrvTrk]
DiskSlip : 99 [SrvTrk]
TgtCyl:     842
Hd:   0 Zn:   0 Avg.:     209
TgtCyl:  169771
Hd:   0 Zn:   1 Avg.:    1037

SVCAL(0080,0000)-->PASS
RecordValid Ok : 0107E47D 0107E41D
ReadyTime = 2670 ms
1.5G Lp00,RLk 00
1.5G Lp01,RLk 00
1.5G Lp02,RLk 00
1.5G Lp03,RLk 00
1.5G Lp04,RLk 00
1.5G Lp05,RLk 00
1.5G Lp06,RLk 00
1.5G Lp07,RLk 00
1.5G Lp08,RLk 00
PwrOnEr

But i think there is another problem on link status or power !?

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coptere

Post subject: Re: Samsung USB Drive HM252HX

Posted: November 25th, 2013, 17:35

Joined: August 8th, 2013, 6:12
Posts: 21
Location: france

Hi all,

Episode 4 & end : Backup !!

I found another drive with the same PCB (Imation apollo) and i used the swap method which working pretty good (with terminal's commands to spindown/up/Reset).
My data are now safe.
Anyway I'm still working on broken HDD to understand why my usb to sata adaptation is not working.

Coptere

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