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MZ-FLV5120 Surface Pro 4
http://forum.hddguru.com/viewtopic.php?f=10&t=41003		 Page 1 of 1
Author:  samstown [ February 22nd, 2021, 17:00 ]
Post subject:  MZ-FLV5120 Surface Pro 4
Hi,

Anyone has experience with this NVME Samsung MZ-FLV5120. Surface Pro 4 fail to boot. I took it out. When plugged to W10, it will ask for Bitlocker key (I can enter the key, press "unlock" but nothing, it's like I am not pressing "unlock" button) everything work on PC but if I try to do anything (open bitlocker from control panel) it will fail. Then after a while I will get "USB device not recognized by PC..."

Thanks
Sam
Author:  pepe [ February 23rd, 2021, 19:05 ]
Post subject:  Re: MZ-FLV5120 Surface Pro 4
try cloning it first, then work on the clone. You never know when these things say goodbye.
Do you have recovery key and key ID?

pepe
Author:  samstown [ February 25th, 2021, 17:52 ]
Post subject:  Re: MZ-FLV5120 Surface Pro 4
The problem is I can't clone it as it always hangs after 1 min. Today I tried with another adapter. I could unlock, start to turn off Bitlocker then drive hangs...
I could see file system a couple of time but not enough to do anything.

Now I keep getting this "version error"which is not relevant. When I try to repair, scanning works for 3 min then error stat to appear. Looks to me like a damaged NAND.
Anyone has experience with NVME tool on the market (ACE, Deepspar) ?

Attachments:
BDE_repair.PNG
BDE_repair.PNG [ 25.95 KiB | Viewed 11062 times ]
BDE_version.PNG
BDE_version.PNG [ 5.06 KiB | Viewed 11062 times ]
Author:  shubhsinghal [ February 26th, 2021, 11:49 ]
Post subject:  Re: MZ-FLV5120 Surface Pro 4
Try to check the temperature of the device( Controller+ Data chip + other components ) when it goes to hang mode.

Ace & deepspar support this scenario, but overall depends the condition of the chip.
Author:  pepe [ February 26th, 2021, 13:59 ]
Post subject:  Re: MZ-FLV5120 Surface Pro 4
+1 for checking if it gets hot somewhere. Saw that problem several times.

pepe
Author:  samstown [ March 4th, 2021, 5:47 ]
Post subject:  Re: MZ-FLV5120 Surface Pro 4
There was no hot components however I could clone it. Took 5 days as NVME was disconnecting every 2 minutes, just enough time to read some sectors. Result is good.
Author:  fzabkar [ March 4th, 2021, 15:08 ]
Post subject:  Re: MZ-FLV5120 Surface Pro 4
My impression from the user forums is that all NVMe SSDs run hot. That's why they need heatsinks.

Also, if you are using a USB-NVMe adapter, be aware that certain bridges have stability issues:

https://forums.anandtech.com/threads/stable-nvme-usb-adapter.2572973/

Personally I would set up a test jig using a PCIe card plus an extension cable. The cable would be connected to a passive adapter which would ideally provide access to both sides of the SSD. I would then attach stick-on heatsinks to the major heat affected ICs.
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