Samsung USB Drive HM252HX

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 935 times

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 949 times

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

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

: usbconnector.JPG (14.37 KiB) Viewed 11103 times

and capacitors (green) are removed.

: satacapacitor.JPG (12.45 KiB) Viewed 11103 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

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 !?

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

Samsung USB Drive HM252HX

Samsung USB Drive HM252HX

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Re: Samsung USB Drive HM252HX

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Re: Samsung USB Drive HM252HX