Enable Tethering on iPhone 3.1.2 Firmware with blacksn0w
The new blacksn0w unlock for iPhone 3.1.2 firmware can enable official tethering option on iPhone 3G and 3GS. For those of you who don’t know, Internet Tethering is a process which enables you to use your iPhone as a wireless modem to share its Internet connection with a computer via USB cable or Bluetooth interface. We have already posted a complete step by step guide on how to enable Internet Tethering option on your iPhone 3G/3GS which has been jailbroken with PwnageTool 3.1.4, and unlocked with ultrasn0w running iPhone 3.1.2 firmware. The following step by step guide is for those of you who have recently jailbroken and unlocked your iPhone using blackra1n RC3 with blacksn0w.