WTF, I plugged my phone in to sync, the phone reset, and next thing I know it's telling my my sim is no recognized, and that the phone is unactivated, yet I still see my tmobile sim card is working. Any idea WTF is going on? I used pwnage to go to 2.0 some time ago, and then did upgrades to 2.2.

It happened to me too! Any ideas on whats going on anyone?

I tried to re "pwn" the phone, but I got an error 1600, so what I did was just used quickpwn, and that activated it again. I didn't want to do that however because of the issues people have been having with upgrading in itunes after using quickpwn, but I needed my phone working again quick, and will cross that bridge later.

i've got two 2008 G2 iphones that are having this problem -- unlocked with pwnage 2.2 and they revert to locked state, not recognizing the SIM card. my own phone, a 2007 G2, also pwned to 2.2, is fine. weird.

what is this 2.2.1 version? is it related to this problem?