The blacksn0w iPhone 3GS 3.1.2 unlock tool updates includes:
- Keep legit activation if activated before running app
- 15 seconds faster, you’ll feel it
- Tiger + PPC support
It will also support the older preinstalled version of blackra1n to update in its latest on your iPhone 3G/3GS and directly unlock. You can also be guided with Windows and Mac tutorial available.