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| Microsoft Surface 1911 - m.2 - SK Hynix Cepheus http://forum.hddguru.com/viewtopic.php?f=10&t=41434 |
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| Author: | Spotmen [ June 23rd, 2021, 8:08 ] | |||||
| Post subject: | Microsoft Surface 1911 - m.2 - SK Hynix Cepheus | |||||
Hello, Has anyone work on those Surface m.2 before ? I am looking for test point/safe mode. I've checked all resistor and coil, nothing bad. There's on short but I beleive it's fuse. Thanks Spot
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| Author: | fzabkar [ June 23rd, 2021, 18:58 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
You may be able to provoke safe mode by disabling the 2.5V supply. You could do this by grounding the Enable pin, assuming it is connected to a pullup resistor. https://www.ti.com/lit/ds/symlink/tlv62085.pdf |
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| Author: | Spotmen [ June 24th, 2021, 4:37 ] | ||
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus | ||
Thank you. I've tried to GND before the pull up, no luck.
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| Author: | Spotmen [ July 1st, 2021, 9:44 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
ok, I desoldered the chip and could read it. |
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| Author: | labtech [ July 2nd, 2021, 17:52 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
Spotmen wrote: ok, I desoldered the chip and could read it. Does it have any encryption when reading the chip directly? I received one the other day and the customer was paranoid about us making any kind of physical modifications. So, we gave it back to him. |
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| Author: | Agrail [ July 6th, 2021, 5:58 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
It is a PCI-E drive, but you are trying to read it over SATA. |
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| Author: | fzabkar [ July 6th, 2021, 15:56 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
Agrail wrote: It is a PCI-E drive, but you are trying to read it over SATA. Doh, you're right. It should have been obvious from the photo, but here is added confirmation: https://www.techpowerup.com/review/sk-hynix-gold-p31-1-tb/ Quote: The controller is an in-house design by Hynix called "ACNT038," or "Cepheus." Quote: Interface: PCIe Gen 3 x4, NVMe 1.3
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| Author: | Spotmen [ July 10th, 2021, 7:16 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
labtech wrote: Spotmen wrote: ok, I desoldered the chip and could read it. Does it have any encryption when reading the chip directly? I received one the other day and the customer was paranoid about us making any kind of physical modifications. So, we gave it back to him. No, you see NTFS with Bitlocker. |
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| Author: | labtech [ July 10th, 2021, 7:50 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
Thanks for the response. |
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| Author: | Paradog84 [ August 17th, 2021, 8:05 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
Spotmen wrote: ok, I desoldered the chip and could read it. How do you mean? Desoldered onto another adaptor, or do you have a test socket? |
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| Author: | suricate.ch [ August 18th, 2021, 2:19 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
I got one of those. https://www.dolphindatalab.com/product/ ... ter-smart/ |
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| Author: | Paradog84 [ August 18th, 2021, 14:21 ] |
| Post subject: | Re: Microsoft Surface 1911 - m.2 - SK Hynix Cepheus |
suricate.ch wrote: Thank you for the info! I have been searching for a test socket for these BGA 1620 chips. Up until now I have been using a Samsung PM971 PCIe card, I removed the existing chip and replace with the one that requires recovery. Very fiddly reball job (using universal stencil) but I have had a lot of success using soldering/reball method (Device can be access via PC3000 portable PCIe adaptor) This USB adaptor will save me quite a lot of time! Again, thank you! |
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