DO NOT install this. If your phone was ever on a firmware higher than 1.0.2 (as in you downgraded), it'll erase your baseband and make your iPhone into a brick. Just a hypothesis, but I don't believe anySim 1.0.x is compatible with the 4.x baseband.
The following features will no longer function:
- Wifi will display "No Wifi"
- Bluetooth will not function
- Sound will not work on the phone
- Vibration will not work on the phone
- IMEI will be erased
- ICCID will be erased
- Battery Indicator will not accurately depict battery life
- Restoring/Updating is impossible
EDIT: anySIM completely destroyed my phone's baseband. Thankfully, I was able to flash a brand new one after hours of trial and error. Here's my report:
[Question] HELP! Bricked my 2G!!