Iphone 3gs 4.1 unlockable?

[jcraven8081]

I'm selling my Iphone but b4 I do I want ti jailbreak and unlock it. I'm on 4.0 right now and unlocked is there any way for me to restore and re unlock? Thanks

[iYeow]

What firmware are you thinking to restore.

The baseband for 4.1 cannot be unlocked but if you want to put 4.1 , then you will have to restore to custom firmware

If you want to restore to 4.0, then you can restore to 4.0 only if you have shsh blogs.

[eyeRobot]

Given the title of the thread it looks like a 4.1 upgrade is wanted.

Snowbreeze for windows
Pwnagetool for Mac

These tools can create a custom firmware from a stock 4.1 such that you can upgrade your phone to 4.1 and maintain your baseband so it can be unlocked.

[jcraven8081]

OK thanks so I use snowbreeze to jailbreak then ultrasnow like normal to unlock?

[eyeRobot]

That's correct