iPhone Jailbreak after iOS update

[auptimus]

Hi guys,
I really appreciate your help. I have a jailbroken iPhone 3GS on iOS 5.0.1. I would like to update the iOS to the latest "jailbreakable" version. My questions are:
- Which iOS version can I update to
- Will I have to re-jailbreak my iPhone after I update the iOS?
Thanks for your help
Optimus

 

[Baggio]

Hi guys,
I really appreciate your help. I have a jailbroken iPhone 3GS on iOS 5.0.1. I would like to update the iOS to the latest "jailbreakable" version. My questions are:
- Which iOS version can I update to
- Will I have to re-jailbreak my iPhone after I update the iOS?
Thanks for your help
Optimus

6.0. has untethered JB on old bootrom versions.

Windows w/ Redsn0w
http://www.iclarified.com/25170/how-to-jailbreak-your-iphone-3gs-using-redsn0w-windows-60

Mac w/ Redsn0w
http://www.iclarified.com/25168/how-to-jailbreak-your-iphone-3gs-using-redsn0w-mac-60

 

[Stooby Mcdoobie]

6.0. has untethered JB on old bootrom versions.

I thought Apple was no longer signing 6.0 - is it possible to upgrade to an unsigned version? (I know you have to use blobs to downgrade.)

 

[Baggio]

I thought Apple was no longer signing 6.0 - is it possible to upgrade to an unsigned version? (I know you have to use blobs to downgrade.)

I believe it will work on 6.0.1.

The iClarified write up shows them using an 6.0.1 IPSW file for the JB of the 3GS.