All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 11 posts ] 
Author Message
 Post subject: Safe mode in Kingston sm2280s3
PostPosted: September 29th, 2021, 9:05 
Offline

Joined: January 8th, 2019, 15:27
Posts: 13
Location: Poland
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
6767D6F1-12CB-427C-AE46-9C7A4D392961.jpeg [ 1.65 MiB | Viewed 9572 times ]


Thank you in advance


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: September 29th, 2021, 11:18 
Offline

Joined: July 31st, 2018, 12:30
Posts: 78
Location: Brasil
Just a guess, but besides the Phison controller there's a row of small capacitors, the third slot is empty. Not sure.


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: September 30th, 2021, 7:52 
Offline

Joined: May 12th, 2015, 5:37
Posts: 30
Location: Russia
Safe mode:
Attachment:
11.png
11.png [ 18.07 MiB | Viewed 9396 times ]


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: September 30th, 2021, 11:16 
Offline

Joined: July 31st, 2018, 12:30
Posts: 78
Location: Brasil
Thank you.


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: September 30th, 2021, 13:41 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Is that a Phison PS3108 controller?

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: October 2nd, 2021, 7:44 
Offline

Joined: January 8th, 2019, 15:27
Posts: 13
Location: Poland
Yes this is ps3108, the solution given by @Agrail does not work. After the pads are short, the SSD turns off.


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: October 2nd, 2021, 14:11 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
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

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: October 4th, 2021, 7:29 
Offline

Joined: January 8th, 2019, 15:27
Posts: 13
Location: Poland
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?


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: October 4th, 2021, 12:56 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
What are the voltages at the inductors?

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: October 5th, 2021, 7:19 
Offline

Joined: January 8th, 2019, 15:27
Posts: 13
Location: Poland
@fzabkar 1.2V; 1.5V; 1.8V


Top
 Profile  
 
 Post subject: Re: Safe mode in Kingston sm2280s3
PostPosted: October 5th, 2021, 13:04 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
If the resistances on each rail appear normal with the controller installed, the next place I would look at would be the crystal.

_________________
A backup a day keeps DR away.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 34 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group