Untether a tethered 3GS FW4.2.1 JB?

[svirusvir]

Hi,
I have a 3GS iPhone, which was locked on 4.2.1 and 05.15.04 bb (new bootrom). Yesterday I jailbroke it with redsn0w and unlocked with ultrasn0w. This brought it to 06.15.00 bb. The jailbreak is tethered.

Is there a way to un-tether this jailbreak?

Thanks!

[i.Annie]

Yep just run greenpois0n from greenpois0n.com on your phone to untether it. No need to restore or reinstall anything like Cydia, just run gp on it plain and simple

[svirusvir]

Thanks, it worked!

[i.Annie]

Awesome