vijai's blacksn0w 3.1.3 update. Unlocks and works beautifully with iPhone OS 3.1.3
I've reworked geohot's blacksn0w to work with iPhone OS 3.1.3 (3G only). It works beautifully with BB 5.11.07. You can download it from here:
MEGAUPLOAD - The leading online storage and file delivery service
Use sn0wbreeze v1.5.2 with this blacksn0w update to jailbreak and unlock ur iphone
FYI.. FOR 3G, DO NOT INSTALL iPhone OS 3.1.3 DIRECTLY USING iTunes!!!
To install iPhone OS 3.1.3 in your 3G, use sn0wbreeze v1.5.2 and add this blacksn0w update. Then install the modified firmware using iTunes to update your device. Works beautifully.
Tested on Baseband version 5.11.07. If you've accidentally upgraded your BB to 5.12.xx, you need to downgrade it to 5.11.07 before you can use this update. Might not work on older BB versions.
official sn0wbreeze link: http://ih8sn0w.com/index.php/welcome.snow