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 Post subject: Samsung HD254GJ LED 1A04 error
PostPosted: April 25th, 2017, 3:03 
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Joined: April 25th, 2017, 3:00
Posts: 6
Location: Romania
Hi, long story short, it spins up, then down, on terminal I get:

*PA VID=0000 PN=0004 Rev=0001- 785x Found*PA VID=0000 PN=0004 Rev=0001- 785x FoundChipRev = 63B0U
S_0
RV En Sensor Circuit
En Shock Sensor Circuit
SO_1
SpinStartUp: mcSpinRPM = 0
RPM at Handoff: 621
Temp : 26 degC
SpinOk
mS1 00000003
SK C:126726 H:0
POK
POK
Boot Sector Error! Take a default.
Loaded FIT ( 0: 0: 1)
CalibTable Loaded. Rev:0x14
Selective MARC NX Loaded
ResoTable Loaded. Rev:0x01
Ovly loaded to 0x0001CD00
Ovly loaded to 0x1005B800
FdtTable Loaded. Rev:0x02
| 19 | RLIST | 2 | 0 | 256 | 1140 |
Reading Serial Num Pass
Up MC
TgtCyl: 2032
Hd: 0 Zn: 0 Avg.:- 193
TgtCyl: 264349
Hd: 0 Zn: 1 Avg.: 92

SVCAL(0080,0000)-->PASS
>>InsituStart: t=789, c=26
GeoId = 49, Idx=49
fodstep: 0000005B dgain: 00000061
GeoId = 49, Idx=49
fodstep: 00000065 dgain: 0000006B
GeoId = 49, Idx=49
fodstep: 0000006A dgain: 00000064
>>Flag=0000028B BadHd=0000 dFod=0024 (t=817 c=26)
RecordValid Fail : 0007643D 0007E41D
VOP!
PK_4 C:238005 H:0
VOP!
PK_4 C:238005 H:0
LED 1A04
LED 1A04
LED 1A04

In terminal I can not send any command, it doesn`t respond, just stays busy and giving the same error endlessly no matter what.
I don`t have any special tools, so I`m only stuck to terminal
Any idea would be great, thank you!


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 Post subject: Re: Samsung HD254GJ LED 1A04 error
PostPosted: April 25th, 2017, 14:24 
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Joined: September 8th, 2009, 18:21
Posts: 9509
Location: Australia
This error means that the RLIST/ALIST (grown defect list) is unreadable:

Quote:
| 19 | RLIST | 2 | 0 | 256 | 1140 |

LED 1A04 is ...

Quote:
MC read error (under the category "MC Access Errors")

MC = Maintenance Cylinders (aka System Area / Service Area)

How to fix the "LED 1A04" problem :
http://www.hddoracle.com/viewtopic.php?f=116&t=197

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 Post subject: Re: Samsung HD254GJ LED 1A04 error
PostPosted: April 26th, 2017, 0:59 
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Joined: April 25th, 2017, 3:00
Posts: 6
Location: Romania
Hi, yes, I`ve read about that, but I wonder why it doesn`t respond to any terminal commands. Tried with Samsung pro tool, still nothing.


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 Post subject: Re: Samsung HD254GJ LED 1A04 error
PostPosted: April 27th, 2017, 6:11 
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Joined: April 25th, 2017, 3:00
Posts: 6
Location: Romania
P is the patient, D the donor. Is there anything I missed? They seem pretty identical. I`ll try to do a hotswap, any advice, maybe there`s something I`m not thinking of...
Found this http://www.hddoracle.com/viewtopic.php?f=116&t=1085
Think I should try that or just go for the hotswap with nothing else?


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 Post subject: Re: Samsung HD254GJ LED 1A04 error
PostPosted: August 2nd, 2017, 2:27 
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Joined: April 25th, 2017, 3:00
Posts: 6
Location: Romania
If it helps anyone, I managed to get the data back using hotswap and also replacing the rom chip. Cloned with ddrescue, worked like a charm!


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 Post subject: Re: Samsung HD254GJ LED 1A04 error
PostPosted: August 6th, 2017, 11:46 
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Joined: December 19th, 2006, 8:49
Posts: 7792
Location: Portugal
Mihut84 wrote:
Hi, yes, I`ve read about that, but I wonder why it doesn`t respond to any terminal commands. Tried with Samsung pro tool, still nothing.


Did you press "esc" key ?

:D :D :D

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 Post subject: Re: Samsung HD254GJ LED 1A04 error
PostPosted: August 6th, 2017, 11:47 
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Joined: December 19th, 2006, 8:49
Posts: 7792
Location: Portugal
Mihut84 wrote:
If it helps anyone, I managed to get the data back using hotswap and also replacing the rom chip. Cloned with ddrescue, worked like a charm!


I can see how it would be possible to gain MC access with hot swap and then clear A-List but i can't see the "need" to swap ROM chips over ...

At any rate it's nice to know that you did manage to get your data back !

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