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 Post subject: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 17:41 
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Joined: July 20th, 2016, 10:05
Posts: 14
Location: united states
I have a samsung drive I pulled from an enclosure. It is not spinning at all. My limited expertise told me to check if it has a blown tvs diode. When I check for continuity between the 5 volt and ground I do not get any. To me that means the tvs diode is good. Actually I am not sure this drive even has one. I labeled two parts "1" and "2" by the power connector, Here is what I know

-no continuity or an ohm reading of 1 when I put my meter on bother sides of part "2"
-one side of part "2" goes to ground and the other side goes to the 5 volt
-part "1" has continuity and both sides go to the 5 volt

Any help an giving me direction would be great
Does this drive have a tvs diode? If I was to guess, I would say no.

Thanks


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 18:01 
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Joined: September 8th, 2009, 18:21
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Location: Australia
Measure Vcore and Vio.

Does the drive attempt to spin up? Can you hear any sound, however faint?


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 18:09 
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Joined: July 20th, 2016, 10:05
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Location: united states
no sound at all. I am embarrassed, I did not even barely notice that small tvs diode. How do I measure the vcore and vio?

I have an ohm reading of about .5ohm between vcore and 5volt and also the same with vio


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 18:21 
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Measure the voltages between ground and each of Vcore and Vio.

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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 18:45 
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fzabkar wrote:
Measure the voltages between ground and each of Vcore and Vio.


vcore = 2.5
vio = 1


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 18:56 
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Location: Australia
Those voltages are OK.

Try to obtain a terminal log.

How to connect a terminal adaptor on a Samsung drive ?
http://www.hddoracle.com/viewtopic.php?f=116&t=189

BTW, did you test the drive in a PC? Some drives are configured to power up in standby (PUIS). Also, some enclosures won't spin up a drive unless they detect a USB host.

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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 12th, 2017, 18:59 
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Joined: July 20th, 2016, 10:05
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I will see what I can do. Thank you so very much for all of your help.


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 13th, 2017, 11:02 
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I did test it on a regular pc sata cable


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 13th, 2017, 12:41 
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Joined: November 29th, 2006, 10:08
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Location: UK
I'm betting a terminal output will show an "unpack fail" error (or something similar)

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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 1st, 2018, 13:14 
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Joined: February 26th, 2016, 5:02
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Location: Poland
pcimage wrote:
I'm betting a terminal output will show an "unpack fail" error (or something similar)


pcimage what does it mean when on terminal show "unpack fail"?

I have drive with this message in terminal:
Code:
ActiveFW : 00
FWVer : 0001
SATA PLL cal done
DDR size detected = 16MB

DDR size detected = 16MB
CACHED
Unpack Fail


I have disk ST500LM012. Drive is dead, don't spin any sound. I haven't tasted this drive with another PCB yet.


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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 1st, 2018, 13:54 
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Joined: December 12th, 2017, 4:27
Posts: 43
Location: Poland, Warsaw
In some Samsung drive rom fault can give the results that drive do not spin

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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 1st, 2018, 16:45 
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Joined: December 19th, 2006, 8:49
Posts: 9672
Location: Portugal
lasek wrote:
pcimage wrote:
I'm betting a terminal output will show an "unpack fail" error (or something similar)


pcimage what does it mean when on terminal show "unpack fail"?

I have drive with this message in terminal:
Code:
ActiveFW : 00
FWVer : 0001
SATA PLL cal done
DDR size detected = 16MB

DDR size detected = 16MB
CACHED
Unpack Fail


I have disk ST500LM012. Drive is dead, don't spin any sound. I haven't tasted this drive with another PCB yet.


Simple .... You ROM is damaged most likely FIPS section of ROM is cleared/zeroed so your drive doesn't spin at all because ROM doesn't load to RAM as unpacking the code to run it does fail.

Easy to fix with proper tools, you can read ROM by terminal and patch FIPS to fix it, write ROM again and you are good to go.

As alternative you can check if drive have firmware version on label. If so buy another drive with exact same firmware version and swap PCB. Drive will now work. You can swap PCB by one of the same Firmware as ROM will not contain adaptives.

You can even "adapt" PCB by writing overlays .... You need firmware tools like PC-3000, MRT, SeDiv, SHTR, etc ....

Are you willing to ship the drive to Portugal and ... pay ?

I can fix your drive and recover your data almost for sure ....

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 Post subject: Re: samsung hm100ui not spinning
PostPosted: October 1st, 2018, 16:49 
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Joined: December 19th, 2006, 8:49
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Location: Portugal
1 - My service here covers the FIPS problem and is way cheap than using a conventional data recovery firm :

https://www.ebay.com/itm/Samsung-Hard-D ... 2697349062

2 - To understand problem and use a DO-IT-YOURSELF fix read here - http://www.hddoracle.com/viewtopic.php?f=19&t=2511

READ TILL THE END AS THIS IS NOT HEAD RELATED AND YOU DON'T NEED CLEAN ROOM WORK.

:D

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