[U9210] SD Card Reader

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Charley_Lima
Posts: 6
Joined: Mon Feb 21, 2011 15:44
Product(s): Esprimo Mobile U9210 / 8 Gb / Windows 7 Ultimate
Location: Norfolk, UK

[U9210] SD Card Reader

Postby Charley_Lima » Wed Feb 23, 2011 15:41

I insert SD Card and it is recognised until I remove my finger from the card.
The card springs back against its stop and is no longer recognised by the laptop.

I am describing this poorly but it is as if the contacts on the card are too short
- this has however only recently started to happen.

Driver is up to date.

Is this a hardware thing?

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sabrex
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Re: [U9210] SD Card Reader

Postby sabrex » Wed Feb 23, 2011 17:21

try another SD card
If same occurs then some hardware thing is going on

myxal
Posts: 116
Joined: Fri Oct 17, 2008 16:33
Product(s): Esprimo Mobile U9200 (T9300, 8GiB RAM, 250 GB SSD, multiboot Kubuntu, Win 2003)

Re: [U9210] SD Card Reader

Postby myxal » Sat Aug 06, 2011 21:15

This seems to be hardware problem - I have the same thing happening on my U9200. The reader performed OK when the laptop was new, then began to exhibit this behavior around the end of the warranty period (of course... :( ).
First you should try cleaning the contacts on the card and maybe blow some air into the reader. That didn't help in my case so I played with the card until I found a position in which it stayed connected, which meant pushing the card towards its right side while inserting it in the reader and pushing it by the lower left corner.
I'm fairly convinced that one of the contacts inside got pushed backwards by a different card or something, but I can't do much about it since the reader can't be opened up without soldering :(
Image

myxal
Posts: 116
Joined: Fri Oct 17, 2008 16:33
Product(s): Esprimo Mobile U9200 (T9300, 8GiB RAM, 250 GB SSD, multiboot Kubuntu, Win 2003)

Re: [U9210] SD Card Reader

Postby myxal » Sun Oct 30, 2011 12:48

I have some good news and bad news.
The good news is, I managed to fix the problem on my card reader. 8)
The bad news is the actual cause of the problem. It's not a bad contact with the card (any of the contacts visible from the outside) but rather bad contact on the card presence switch. Fixing involves taking the laptop apart (at least to the point where you have access to the reader). I took the off the reader's metal cover, which turned out to be unnecessary - The switch is reachable from the outside of the cover.
Card_reader_inside.jpeg
Card_reader_inside.jpeg (274.68 KiB) Viewed 13281 times

Charley_Lima
Posts: 6
Joined: Mon Feb 21, 2011 15:44
Product(s): Esprimo Mobile U9210 / 8 Gb / Windows 7 Ultimate
Location: Norfolk, UK

Re: [U9210] SD Card Reader

Postby Charley_Lima » Sun Oct 30, 2011 13:00

Good that it works for you - do you think you might be able to go into a little more detail on accessing the assembly and how you fixed it?
Kind regards
Chris

myxal
Posts: 116
Joined: Fri Oct 17, 2008 16:33
Product(s): Esprimo Mobile U9200 (T9300, 8GiB RAM, 250 GB SSD, multiboot Kubuntu, Win 2003)

Re: [U9210] SD Card Reader

Postby myxal » Sun Oct 30, 2011 13:38

I might, but remember I have a U9200, not U9210, so you'll have to find a way how to disassemble the laptop and access the card reader yourself.
In U9200, the card reader is on a small "daughter board" (separate from the mainboard) just beneath the metal plate under the keyboard. The cover has 2 openings in the edge of the top side - one for the write protect switch, the other for the card presence switch. You can see them here - the WP switch is closed, while the CP switch is open (this happens when the card is partially inserted):
Card_reader_1.jpeg
Card_reader_1.jpeg (382.71 KiB) Viewed 13279 times

I fixed the problem by cleaning and re-springing the CP switch. I used a sharp-tipped wooden toothpick covered with a thin layer of cotton wool, sprayed with contact cleaner. I suppose anything you can get between the switch's contacts without damaging it will work, even with only alcohol, but I suppose it depends on what's contaminating the contacts. It may be a layer of corrosion, it may be just a strand from textile, or accumulated cigarette smoke.
Image

Charley_Lima
Posts: 6
Joined: Mon Feb 21, 2011 15:44
Product(s): Esprimo Mobile U9210 / 8 Gb / Windows 7 Ultimate
Location: Norfolk, UK

Re: [U9210] SD Card Reader

Postby Charley_Lima » Sun Oct 30, 2011 13:55

Thank you - mine problems are definitely cigarette related [or this would be my wife's opinion]
Your reader appears to be accessed from the side of the laptop whereas on the 9210 the access is from the front, some distance from the keyboard! I shall try to access and see what happens -


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