how to upgrade iphone 3G on 4.0.1 (05.13.04) to 4.1

[itsme.manish]

Hello,

I have an iPhone 3G on 4.0.1 with 05.13.04 baseband, its jailbroken with jailbreakme.com and unlocked using ultrasnow.

I want to upgrade it to OS 4.1, is there any way I can upgrade and can still jailbreak and unlock it again.

Thanks in advance!

Manish

[onlinegamesnz]

Hello,

I have an iPhone 3G on 4.0.1 with 05.13.04 baseband, its jailbroken with jailbreakme.com and unlocked using ultrasnow.

I want to upgrade it to OS 4.1, is there any way I can upgrade and can still jailbreak and unlock it again.

Thanks in advance!

Manish

Been on 4.1 before?

[itsme.manish]

Dont remember if I was ever on 4.1... but I do have SHSH blobs for 4.1 on cydia!

[cncrim]

This video is exactly what you looking for, follow the video instruction: [ame=http://www.youtube.com/watch?v=yHCmV1GO5xI]YouTube - UNLOCK iPhone 3g and 3gS on 4.1 & 4.2/4.2.1 firmwares[/ame]