Samsung EVO 840 Terminal Connections?
Posted: June 26th, 2019, 14:23
Anyone know/confirm where the terminal connections are on this Samsung EVO 840?
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Samsung EVO 840 Terminal Connections?
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Re: Samsung EVO 840 Terminal Connections?
Posted: June 26th, 2019, 17:24
Read @sourcerer's "missing manual".
Re: Samsung EVO 840 Terminal Connections?
Posted: June 26th, 2019, 17:56
fzabkar wrote:Read @sourcerer's "missing manual".
That is a great manual, but this is a PM862 which has an entirely different board layout with far fewer technological pins.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 26th, 2019, 21:31
Sorry, I should have RTM.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 27th, 2019, 9:59
fzabkar wrote:Sorry, I should have RTM.
Not sure what RTM means, but I am assuming read my mind or something like that, so I apologize for not putting this in the first post. But I was hoping that someone who has had this drive before might know, hence the pictures. While it is called a PM863, it is an EVO 840 with an EVO 840 controller.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 27th, 2019, 11:34
ddrecovery wrote:fzabkar wrote:Sorry, I should have RTM.
Not sure what RTM means, but I am assuming read my mind or something like that, so I apologize for not putting this in the first post. But I was hoping that someone who has had this drive before might know, hence the pictures. While it is called a PM863, it is an EVO 840 with an EVO 840 controller.
PM sent..
let me know if works with you
Re: Samsung EVO 840 Terminal Connections?
Posted: June 27th, 2019, 12:16
ddrecovery wrote:fzabkar wrote:Sorry, I should have RTM.
Not sure what RTM means, but I am assuming read my mind or something like that, so I apologize for not putting this in the first post. But I was hoping that someone who has had this drive before might know, hence the pictures. While it is called a PM863, it is an EVO 840 with an EVO 840 controller.
It is usually "RTFM" but in this case "Read The Manual"
Re: Samsung EVO 840 Terminal Connections?
Posted: June 27th, 2019, 18:14
All my searches turn up a different controller for the 840 Evo (S4LN045X01-8030 versus S4LP052X01-8030). 
The PM863 is an enterprise model whereas Evos are "specially designed for mainstream PCs and laptops":
https://www.samsung.com/us/dell/pdfs/PM863_SM863_ProdOverview.pdf
The PM863 is an enterprise model whereas Evos are "specially designed for mainstream PCs and laptops":
https://www.samsung.com/us/dell/pdfs/PM863_SM863_ProdOverview.pdf
Re: Samsung EVO 840 Terminal Connections?
Posted: June 27th, 2019, 19:09
fzabkar wrote:All my searches turn up a different controller for the 840 Evo (S4LN045X01-8030 versus S4LP052X01-8030).
The PM863 is an enterprise model whereas Evos are "specially designed for mainstream PCs and laptops":
https://www.samsung.com/us/dell/pdfs/PM863_SM863_ProdOverview.pdf
Thanks for the research. I was told that this drives FW is based on the EVO 840. I guess when Ace Labs supports it we will know more. Once again thanks for the research, its appreciated.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 4:28
Hi,
I can only see the JTAG pins.
The pins you have marked with a question mark look more like test pins to me than UART pins, the UART pins have always been through-hole on the Samsung SSDs I have seen but hose are just SMD points, so I think Samsung could not plug in their UART connectors into those pins. Perhaps they have given up on the UART interface completely, since it's pretty useless with most of the firmwares I have seen anyway.
Which voltages do you measure on those 2 pins?
I guess you can only use JTAG interface with this model then.
I can only see the JTAG pins.
The pins you have marked with a question mark look more like test pins to me than UART pins, the UART pins have always been through-hole on the Samsung SSDs I have seen but hose are just SMD points, so I think Samsung could not plug in their UART connectors into those pins. Perhaps they have given up on the UART interface completely, since it's pretty useless with most of the firmwares I have seen anyway.
Which voltages do you measure on those 2 pins?
I guess you can only use JTAG interface with this model then.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 5:04
That line of 7 test points looks like it consists of two groups -- a group of 5 and a slightly offset group of 2. Can we be certain that those 2 test points are the SAFE mode shorting pins?
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 5:47
Yes, those 5 pins are the JTAG and the other 2 next to them are the SAFE mode. Exactly the same pinout as on the EVO840
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 6:15
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 12:18
fzabkar wrote:Is this the same SSD?
https://groups.google.com/forum/#!topic/datarecoverycertification/-C_wMk8QvcE
Probably. I no longer have this drive. The client is apparently hawking it around every data recovery company he can find. He says he needs the data urgently, so if the company cannot get his data within a day, he moves on to the next.
Coming to a data recovery company near you soon...................
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 16:48
AFAICT, your tools identify the controller incorrectly (MEX versus Mercury), so it would appear that it is not supported.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 16:54
fzabkar wrote:AFAICT, your tools identify the controller incorrectly (MEX versus Mercury), so it would appear that it is not supported.
I am not sure what you mean?
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 17:04
840 Evo uses the MEX controller whereas PM863 uses the Mercury controller. If the tool is reporting that it has found a MEX controller, then how can it be expected to work correctly with your SSD? Perhaps this is why no CP can be read.
AFAICS, the PM863 is not supported:
https://blog.acelaboratory.com/pc-3000-ssd-list-of-supported-ssd-drives-regularly-updated.html
AFAICS, the PM863 is not supported:
https://blog.acelaboratory.com/pc-3000-ssd-list-of-supported-ssd-drives-regularly-updated.html
Re: Samsung EVO 840 Terminal Connections?
Posted: June 28th, 2019, 17:11
I think you are referring to the post on a different forum. The tool we use is not the same tool as the images posted.
Re: Samsung EVO 840 Terminal Connections?
Posted: June 29th, 2019, 18:34
Samsung 960gb pm863 SSD :
https://groups.google.com/forum/#!topic/datarecoverycertification/_u9VSi1QWzQ
https://groups.google.com/forum/#!topic/datarecoverycertification/_u9VSi1QWzQ
Heres ace response
Hello Wayne. Sorry for bad news but even in September Update I'm doubt that new loaders and new family of Samsung will appear in support list. Samsung developers starts to protect their drives with very tough encryption, and if in Samsung 840 EVO / PM851 it was possible to work through terminal, in next generation - 850 EVO / PM861 / PM871 they remove terminal interface from SSD at all. As the result we can't communicate with drive and can't reach TechnoMode on it.
I'm afraid in nearest 2 years we will not get any solution for it.
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Best regards,
Roman
Head of Technical Support Engineer
ACE Lab