Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
April 23rd, 2014, 7:55
I have a Seagate ST3500320AS with the SD1A firmware. It stop working after longs years of good work.
With the serial cable I can see these messages in loop :
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
The motor seems to running (good vibration). I can hear spin-up try synchronize to each messages.
I can access to the diag prompt (head disconnected) but I have errors on /2 Z command and on /2 U command.
Do you think it's a PCB problem ? A swap ROM with another same PCB would help me ?
Thanks
Mussat
April 23rd, 2014, 8:31
Post full terminal log including commands output for 'U".
April 24th, 2014, 3:48
Logs of the terminal with somes comments:
- Code:
// normal power on
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
// head disconnected power on (no vibration)
F3 T>
F3 T>/2
F3 2>Z
LED:000000EE FAddr:0000F980
LED:000000EE FAddr:0000F980
//freeze
// head disconnected power on again (vibration seem ok)
Rst 0x20M
F3 T>/2
F3 2>Z
LED:000000CE FAddr:00259C49
Rst 0x20M
F3 T>/2
F3 2>Z
LED:000000CE FAddr:00259C49
Rst 0x20M
F3 T>/2
F3 2>Z
LED:000000CE FAddr:00259C49
Rst 0x20M
// connect heads (remove paper)
F3 T>/2
F3 2>U
LED:000000EE FAddr:0000F980
LED:000000EE FAddr:0000F980
// freeze
// normal power on
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
LED:000000CC FAddr:000107B3
Rst 0x20M
April 24th, 2014, 9:29
on the 'Z' command, the drive should spin down. Yours is not. It looks like the steps are not executed correctly.
April 24th, 2014, 9:51
What are the goods steps ?
April 24th, 2014, 10:01
Mussat wrote:What are the goods steps ?
Take to a data recovery professional before it is too late.
April 25th, 2014, 3:41
lcoughey wrote:Mussat wrote:What are the goods steps ?
Take to a data recovery professional before it is too late.
Thank you for your advise, but datas aren't so critical and I'd like to repair it by myself, to improve my skills and it's a challenge !
Do you know what are meaning errors code : (LED:000000CC, Rst 0x20M, ...) ?
Tanks
April 25th, 2014, 15:31
According to the terminal log you've posted, the problem is either dead heads or non-original PCB.
The easiest way to check the latter for this drive is to unscrew the PCB and power it on.
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