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Amarbir[CDR-Labs]
 Post subject: Re: SP SSD S55
PostPosted: July 30th, 2019, 15:30 
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Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
Wow ,
Do Try this Experiement Worth It ,But The SSD Should Not Be In Busy Mode IMHO Otherwise Its Waste ,Might Be It Gets Out Of Busy Mode If We Increase Decrease Voltage To NAND

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Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
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ddrecovery
 Post subject: Re: SP SSD S55
PostPosted: August 1st, 2019, 15:42 
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Joined: June 11th, 2013, 17:01
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Location: Phoenix, AZ USA
Sorry for the delay. I will get to this soon. Had a few RAID's in all with rebuild issues.

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ddrecovery
 Post subject: Re: SP SSD S55
PostPosted: August 1st, 2019, 19:44 
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Our little experiment didn't work on this occasion. I think the principal was good, but the drive still goes BSY trying to read a sector. The drive stopped responding altogether at 2.7v, which I guess is no surprise.

It is a strange one. The generic utility in PC3000 even reports SMART status....


Attachments:
SSD Power Test.PNG
SSD Power Test.PNG [ 13.7 KiB | Viewed 10537 times ]

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fzabkar
 Post subject: Re: SP SSD S55
PostPosted: August 1st, 2019, 20:29 
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Joined: September 8th, 2009, 18:21
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Location: Australia
Did you try raising the voltage above 3.3V?

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ddrecovery
 Post subject: Re: SP SSD S55
PostPosted: August 1st, 2019, 20:48 
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Yes I went to 3.6v. The reader goes to 4.0v but did not want to go that high.

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fzabkar
 Post subject: Re: SP SSD S55
PostPosted: August 3rd, 2019, 13:09 
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Thanks for indulging me. Perhaps the technique may work for other candidates. Better luck next time.

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ddrecovery
 Post subject: Re: SP SSD S55
PostPosted: August 3rd, 2019, 14:30 
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fzabkar wrote:
Thanks for indulging me. Perhaps the technique may work for other candidates. Better luck next time.

Thanks for the help. Now we know the technique I am sure we will have many more to try.

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gameboybin
 Post subject: Re: SP SSD S55
PostPosted: August 13th, 2024, 3:44 
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Joined: April 17th, 2022, 22:39
Posts: 203
Location: Vietnam
Ok i am digging this up cause i find it fascinating, and having the same exact problem. And might even get lucky with it

So i have a case https://forum.hddguru.com/viewtopic.php?f=10&t=44566

Upon using MPTool to read out Chip IDs i found out Bank 4 of Chip 4 is wrong, Instead of 84 it shows 8C
However, when doing chip-off to id it on PC3000 i get a good ID with 1.8V Vcc 1.8 Vccq

So now im trying to find a way to send out 1.8V Vcc to that chip/
Thanks fzabkar for pointing out the right direction


Attachments:
File comment: Faulty chip and Back
FAULTY 507584f54affeea1b7ee3.jpg
FAULTY 507584f54affeea1b7ee3.jpg [ 708.35 KiB | Viewed 4132 times ]
File comment: Front
4a2299af57a5f3fbaab44.jpg
4a2299af57a5f3fbaab44.jpg [ 707.84 KiB | Viewed 4132 times ]
File comment: Not Faulty in PC3000 Chip off VCC 1.8
c2eb6de83af29eacc7e3.jpg
c2eb6de83af29eacc7e3.jpg [ 346.64 KiB | Viewed 4132 times ]
File comment: Faulty ID in MPTools
6580eb143763933dca72.jpg
6580eb143763933dca72.jpg [ 1.3 MiB | Viewed 4132 times ]
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