turn off your lock codes when updating to iPhone 3.0 or you will brick your wifi and bluetooth


You've been warned. I have a lock code on my iPhone 3G, when i did the 3.0 update, it trashed the nvram so that there is no wifi hardware detected. Only solution is to go to Apple store and get a new phone. Took some digging, but here is an answer that makes sense

Apple - Support - Discussions - NO WIFI OR BLUETOOTH after 3.0 update ...

Apparently, Apple didn't test this scenario, and there's a bug in the upgrade process for those of us who're security-conscious and use a lock code. The bug forces us to abort the upgrade process and start over; my guess is that this leaves the baseband nvram in a dorked-up state.

Folks who've yet to upgrade to 3.0 - my suggestion is to disable the
security code on your iPhone prior to performing the upgrade.

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