For these of you who don’t understand, blacksn0w RC2 is mainly a repackaged model of the authentic release launched by way of geohot, and the restoration which was once recently released by MSFT Guyfor 05.11.07 baseband on iPhone OS 3.1.3.
The installation instructions for blacksn0w RC2 (Final) are exactly similar to the last release. Simply follow the step by step guide posted here to unlock iPhone 3GS/3G, on iPhone 3.1.3 05.11.07 Baseband using blacksn0w RC2 version 1.0.
You can follow our complete jailbreaking guide for iPhone 3.1.3 firmware for iPhone 2G, 3G, 3GS and iPod touch 1G/2G using redsn0w 0.9.3, redsn0w 0.9.4, sn0wbreeze, PwnageTool 3.1.5. Unlocking can be done using ultrasn0w .