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Samsung SSD 850 EVO 2TB - burned - repair guide
http://forum.hddguru.com/viewtopic.php?f=10&t=39028		 Page 1 of 1
Author:  blackstar [ October 15th, 2019, 10:18 ]
Post subject:  Samsung SSD 850 EVO 2TB - burned - repair guide
Hello,

I have found this forum while searching for a guide to repair my burned Samsung 850 EVO. I have found a great inspiration in this topic:
Samsung 840 EVO 512GB - burned - pls need advice

This is modified guide for a similar SSD failure.
I have opened the case (note the burned SATA connector)
Attachment:
1.jpg
1.jpg [ 206.46 KiB | Viewed 13449 times ]


Located the burned part. Luckily most of the marking was readable as "PTSI" which stands for TPS62130RGT* DC-DC converter.
This part is sold for 2USD. I have bought it at Farnell.
Attachment:
2.jpg
2.jpg [ 197.71 KiB | Viewed 13449 times ]


Covered surroundings with a kapton tape. Applied some soldering flux. And removed the part with a heat gun.
Attachment:
3.jpg
3.jpg [ 201.29 KiB | Viewed 13449 times ]


It wasn't easy and I almost gave up. Samsung uses high temperature soldering paste and the part is connected to the GND plane. I had to set the air temperature to 400°C.
Attachment:
4b.jpg
4b.jpg [ 224.77 KiB | Viewed 13449 times ]


Then I added a thin layer of tin on the new part pads (with normal soldering iron), covered it with a soldering flux and soldered on board with the heat gun.
Replaced and cleared:
Attachment:
5b.jpg
5b.jpg [ 235.01 KiB | Viewed 13449 times ]


PCB bottom side:
Attachment:
6.jpg
6.jpg [ 251.76 KiB | Viewed 13449 times ]


I've been using the repaired disk for 3 weeks without any problems. SMART data looks good. But I wouldn't use it for any valuable data.
Thanks to autors of original topic.
Hopefully this will help someone :wink:
Author:  fzabkar [ October 15th, 2019, 21:06 ]
Post subject:  Re: Samsung SSD 850 EVO 2TB - burned - repair guide
Nice job!

FYI, I have an SSD / HDD datasheet database here:
http://www.hddoracle.com/viewtopic.php?f=100&t=1577
Author:  pcimage [ October 16th, 2019, 3:32 ]
Post subject:  Re: Samsung SSD 850 EVO 2TB - burned - repair guide
fzabkar wrote:
Nice job!

FYI, I have an SSD / HDD datasheet database here:
http://www.hddoracle.com/viewtopic.php?f=100&t=1577


Nice share, thanks!
Author:  pcimage [ October 16th, 2019, 3:32 ]
Post subject:  Re: Samsung SSD 850 EVO 2TB - burned - repair guide
blackstar wrote:
Hello,

I have found this forum while searching for a guide to repair my burned Samsung 850 EVO. I have found a great inspiration in this topic:
Samsung 840 EVO 512GB - burned - pls need advice

This is modified guide for a similar SSD failure.
I have opened the case (note the burned SATA connector)
Attachment:
1.jpg


Located the burned part. Luckily most of the marking was readable as "PTSI" which stands for TPS62130RGT* DC-DC converter.
This part is sold for 2USD. I have bought it at Farnell.
Attachment:
2.jpg


Covered surroundings with a kapton tape. Applied some soldering flux. And removed the part with a heat gun.
Attachment:
3.jpg


It wasn't easy and I almost gave up. Samsung uses high temperature soldering paste and the part is connected to the GND plane. I had to set the air temperature to 400°C.
Attachment:
4b.jpg


Then I added a thin layer of tin on the new part pads (with normal soldering iron), covered it with a soldering flux and soldered on board with the heat gun.
Replaced and cleared:
Attachment:
5b.jpg


PCB bottom side:
Attachment:
6.jpg


I've been using the repaired disk for 3 weeks without any problems. SMART data looks good. But I wouldn't use it for any valuable data.
Thanks to autors of original topic.
Hopefully this will help someone :wink:


Good work! :-)
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