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 Post subject: Re: Apple AT31000528AS FirmAP24
PostPosted: October 31st, 2011, 17:12 
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Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY
There's NO need for communication.


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 Post subject: Re: Apple AT31000528AS FirmAP24
PostPosted: November 1st, 2011, 7:00 
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Joined: October 27th, 2011, 6:52
Posts: 7
Location: Ottawa, Canada
fzabkar wrote:
halfmoon wrote:
I received two drives on the same day exhibiting the same problem. Both are Seagate ST31000528AS, both clicking, shutdown, and identified as St_M13FQBL

According to the following article ...

http://www.salvationdata.com/blog/error ... r-7200-11/

... your drive could have a head problem, firmware problem or bad sector problem. The result is that the drive is unable to read the firmware which is located in the hidden System Area on the platters. It then reverts to identifying itself with a factory alias (ST_M13FQBL) which is stored in the serial flash memory chip on the board.

The Salvation Data article states that it may be possible to "solve it as fix the LBA=0 problem (yes, the LBA=0 problem caused by verify code error)."

Although the article refers to the 7200.11 drives, I have seen statements by data recovery professionals that the 7200.11 LBA=0 fix can also be applied to the 7200.12 models.

Of course you need to be able to communicate with the MCU ...


Thank you Fzabkar.....received three 7200.11 last week..repaired.(1xburnt diode...two LBA 0,) Two MAC books,....One MicroSATA SSD 128GB....One Mac Air.....repaired PCB for WD ELITE decryption.....Imaged laptop with ENCASE forensic......cloned three Iomega 88MB cartridges circa 1987....working on a AAVS.....AAJS....two blackberries......wd400.....and many others ... afew coming in today....I simply asked a question since my normal method (without a expensive tool) failed on initial attempt.

thank you for your response

cheers


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 Post subject: Re: Apple AT31000528AS FirmAP24
PostPosted: November 1st, 2011, 22:51 
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Joined: December 13th, 2008, 13:35
Posts: 308
Location: Los Angeles, CA USA
"if the relevant Apple product supports a variety of HDD models from different manufacturers, then it would seem unlikely for Apple to modify each and every model in this way."

It doesn't. To replace a HD in the new iMacs you must use the same manufacturer, sometimes the same model, as it's using terminal connection to monitor temperature.

See here: http://blog.macsales.com/10206-further- ... strictions

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 Post subject: Re: Apple AT31000528AS FirmAP24
PostPosted: November 2nd, 2011, 5:00 
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Joined: November 9th, 2006, 15:15
Posts: 2984
halfmoon wrote:
I simply asked a question since my normal method (without a expensive tool) failed on initial attempt.


What is your 'normal' method? I guess you do not have 'expensive' tools, or you would have used them to make proper diagnosis. Proper diagnosis is my 'normal' method.


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