Hello.
Does anyone know the location of the points in the Kingston sm2280s3 drive to put the drive in safe mode.
Attachment:
6767D6F1-12CB-427C-AE46-9C7A4D392961.jpeg [ 1.65 MiB | Viewed 9748 times ]
Thank you in advance
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| Safe mode in Kingston sm2280s3 http://forum.hddguru.com/viewtopic.php?f=10&t=41742 |
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| Author: | mrdoktro [ September 29th, 2021, 9:05 ] |
| Post subject: | Safe mode in Kingston sm2280s3 |
Hello. Does anyone know the location of the points in the Kingston sm2280s3 drive to put the drive in safe mode. Attachment: 6767D6F1-12CB-427C-AE46-9C7A4D392961.jpeg [ 1.65 MiB | Viewed 9748 times ] Thank you in advance |
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| Author: | grevan [ September 29th, 2021, 11:18 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
Just a guess, but besides the Phison controller there's a row of small capacitors, the third slot is empty. Not sure. |
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| Author: | Agrail [ September 30th, 2021, 7:52 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
Safe mode: Attachment: 11.png [ 18.07 MiB | Viewed 9572 times ] |
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| Author: | grevan [ September 30th, 2021, 11:16 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
Thank you. |
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| Author: | fzabkar [ September 30th, 2021, 13:41 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
Is that a Phison PS3108 controller? |
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| Author: | mrdoktro [ October 2nd, 2021, 7:44 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
Yes this is ps3108, the solution given by @Agrail does not work. After the pads are short, the SSD turns off. |
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| Author: | fzabkar [ October 2nd, 2021, 14:11 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
Are you shorting the pads before powering on the SSD? I would measure the voltages at all the potential shorting points. One of the pads must connect to a ball on the Phison controller, and one of the voltages must be at Vio levels. I would find the Vio supply by measuring the voltages at each of the inductors (the components with a white spot). You could also determine the Vcore and Vio voltages by measuring the tiny bypass capacitors surrounding the controller. I have some ideas here, but your SSD may use a different approach. How to locate "safe mode" shorting points on an SSD: http://www.hddoracle.com/viewtopic.php?f=106&t=3088 |
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| Author: | mrdoktro [ October 4th, 2021, 7:29 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
I approached the topic in a different way: I bought a working Goodram C50 disk based on the same chipset, I found a safe mode (3.3V to GPIO0), I desoldered the PS3108 chip, GPIO0 is an E1 ball. In my hard drive I located a vias between the sides of the laminate ... and ... @Agrail actually showed safe mode points ...  and now another question: do I have a damaged controller or what?
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| Author: | fzabkar [ October 4th, 2021, 12:56 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
What are the voltages at the inductors? |
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| Author: | mrdoktro [ October 5th, 2021, 7:19 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
@fzabkar 1.2V; 1.5V; 1.8V |
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| Author: | fzabkar [ October 5th, 2021, 13:04 ] |
| Post subject: | Re: Safe mode in Kingston sm2280s3 |
If the resistances on each rail appear normal with the controller installed, the next place I would look at would be the crystal. |
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