Wireless Problem

[hermex]

My wireless stopped working. I tried entering "test /wlan" and i receive the following message:

Testing /wlan
SDHCI: Error: ISR = 8000 ESR = 20 Data CRC
Stopping
Selftest failed due to abort

does anybody know why this happen? Thanks

[sandy|XO]

Not sure since I haven't seen this error personally, but you may want to poke around here:
http://wiki.laptop.org/go/OLPC_Firmware_q2c20
and
http://wiki.laptop.org/go/Secure_Digital_card
and
http://wiki.laptop.org/go/Talk:Secure_Digital_card

Updating the firmware may help.

[avdreamer]

Try new firmware, that should fix any issues with the WLAN card.

[rocky]

my problem is same...........
and showing this error...
Testing /wlan
SDHCI: Error: ISR = 8000 ESR = 20 Data CRC
Stopping
Selftest failed due to abort

thanks in advance for suggestion...........

[ncarrol]

There are anecdotal reports of correcting wireless problems by removing the power sources (AC and Battery) for a sort period (seconds) to reset the wireless. The wireless remains powered even though the XO is turned off.

Next, what version of software (and firmware) are you running ?