i have iphone 3gs he vr 3.1.2 16GB,i unlocked it by blackrain,but in the phone i cant see black rain,and not accept any network but its shows network name,and when i make a call! call is failed plz help me its urgent im in big prob.

terminology:

- blackra1n is not unlock, it is jailbreak
- redsn0w 0.9.3 is also jailbreak, better than blackra1n and is my prefer choice.

- blacksn0w is unlock for modem firmware 05.11.07
- ultrasn0w is unlock for modem firmware 04.26.08

*** if you phone boots up normally, go into cydia and install blacksn0w, you may need to add source http://b lackra1n.com in Cydia ***