UPDATE : 3.1.3 Custom Firmware for iPhone 3G and 3GS now available!
The Dev Team did it again in style by releasing Pwnage tool for 3.1.3 iPhone Firmware. 3.1.3 Firmware from Apple is not a noteworthy upgrade and it is suggested you skip it! Few bug fixes, battery fixes, unlock-mess ups are everything Apple has to offer with 3.1.3 firmware! Some of us just like the higher software version and there is nothing stopping us from trying it, eh?
3GS users should proceed cautiously. No kidding! Drop a comment if you have any questions – Read this real quick and only then should you proceed!
I would suggest you read the official announcement by the Dev Team.
Ok, now you may download it from here Rapidshare mirror or Dev Team’s site or here.
jaemillz
I had a quick question, i'm still alittle confused. Can u still unlock a 3g with the new 3.1.3 updated.
betty
Can i ulock my iphone 3gs 3.1.3 …5.12 i think..updated by mistake on through iphone ..pl,s help
Kiran
Unfortunately, we cannot unlock 3.1.3 / 5.12 baseband yet 🙁 Stay tuned sicne the iPad release is around the corner..
ding
I'm getting the damn 1600 error following these steps exactly. Any ideas?
Kiran
Follow the '1600 error' resolution article on this site..
kiol
can i activate my iphone 3gs 3.1.3
kkiran
Using custom firmware, yes.
Vineel
I have got a new iphone 3gs 32GB from australia. Its not activated yet. I am in india now. Can I activate it here?
kiran
It is a tricky situation. You can definitely try the custom firmware to activate and unlock your 3gs…