Wifi Problems

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Error messages seen in syslog. First two cause no networks to be seen. Also a cracked antenna could cause no networks to be seen, but I haven't seen this.

SDIO Command failed

Responses to SDIO commands not sent from wifi chip. I believe this happens when the baseband is in reset for a critical part of the wifi initialization. blacksn0w appears to make this problem worse, and this is "the wifi problem"

Error initiating scan request: 35

This is a generic scan request fail. If wifi still works(like in third party apps) but only scans don't, this is probably the error. No idea what causes this. Card appears to get a mac address, but wifi doesn't always work.

Grayed out Wifi

Gray wifi.png

This is believed to be caused by hardware. Wifi driver isn't loaded by kernel. Did you drop your iPhone?