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after head swap 500 Serial FLASH boot code checksum failure
http://forum.hddguru.com/viewtopic.php?f=11&t=15123
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Author:  hamidbid [ March 13th, 2010, 16:40 ]
Post subject:  after head swap 500 Serial FLASH boot code checksum failure

hi to all

my hdd stm3500320as head failure then swap head with donor hdd

Now, hdd worked in DE and i seen data in explorer but very very slowly!?
in every second clik clik and continues
then i see in terminal

Serial FLASH boot code checksum failure!
BOOT CMD:
DS
AP <addr>
WT <data>
RD
GO
TE
BR <divisor>
?
RET

what's that problem?

and also
2>U
1>N1
then head clik and clik then upper message apear again

Author:  zebong [ March 13th, 2010, 19:45 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum failure

you should try to clone it very very slow.

Author:  hamidbid [ March 14th, 2010, 0:58 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum failure

thanks for your answere

do't chose from boot CMD?

Author:  itconcept [ March 14th, 2010, 2:13 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum failure

Agree with Zebong clone it or Make image .

Author:  hamidbid [ March 14th, 2010, 7:57 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum failure

i do again
2>U
1>N1
then clik and clik then is done

but after power off/on hdd detect 0 byte
then i do bsy solution
now again hdd detect and see data in explorer DE

what that problem with this hdd?
8)

Author:  hddguy [ March 14th, 2010, 8:53 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum failure

hamidbid wrote:

Serial FLASH boot code checksum failure!
BOOT CMD:
DS
AP <addr>
WT <data>
RD
GO
TE
BR <divisor>
?
RET




Looks like damaged ROM to me. Not good on this family.If you can get the data, albeit slowly, maybe persistence and patience is the answer.

Author:  hamidbid [ March 14th, 2010, 15:57 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum failure

i started to image from drive
first 12 hour imaged only 30,000,000 sectors 8)

Author:  z007 [ July 26th, 2013, 6:20 ]
Post subject:  Re: after head swap 500 Serial FLASH boot code checksum fai

a risistor along the rom chip is lost

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