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esquire1968
Fanfold Paper
Posts: 19
Registered: ‎04-19-2014
Location: Vienna
Views: 32,023
Message 1 of 5

W540 Card Reader not working

Hi!

 

 I've a new Thinkpad W540 with Windows 7 64bit. I can't see the Card Reader in the device list. When I insert a SD Card, nothing happens. All I/Os are enabled in the Bios. What can I do? Pls help!

 

Thx

esquire1968

 

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 32,025
Message 2 of 5

Re: W540 Card Reader not working

Try installing one of these packages:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS038432
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS039073

One of these should be for your system. The other should complain at install.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
esquire1968
Fanfold Paper
Posts: 19
Registered: ‎04-19-2014
Location: Vienna
Views: 31,955
Message 3 of 5

Re: W540 Card Reader not working

Thx! It works! The O2micro was the right driver.

Best regards
tufek
Paper Tape
Posts: 4
Registered: ‎05-26-2014
Location: Canada
Views: 31,408
Message 4 of 5

Re: W540 Card Reader not working

I got some solution , just enter bios > security > I/O Access > "Card Reader" make disable then starup pc , then shut down pc , start up and enter bios again , "Card Reader" enable again . and you try to "Card Reader" ,should works Smiley Happy

bios ver. = 2.11
"Card Reader" ver. = 1.2.2.1057
gar_christian
Blue Screen Again
Posts: 3
Registered: ‎06-04-2016
Location: MX
Views: 25,047
Message 5 of 5

Re: W540 Card Reader not working

Thanks it worked for my w541 (the O2 driver was the one!)

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