Jailbreak Iphone 4

[esta]

I have never done this before so I was wondering if anyone could help me out on jail-breaking this iPhone so that I can use it on t mobile. I have an iPhone 4 running on 5.0.1(9A405) on 04.11.08. Thank you.

 

[rudyy]

Some help:
First, deselect the iTunes option that automatically launches iTunes when you plug the phone in to your computer. If you do not, when you connect your phone to the computer during the jailbreak, the process will fail.
Second, I used the guide on iClarified website. It has nice pictures. Find your device and your iOS version.

 

[Thomasjtsi]

I have never done this before so I was wondering if anyone could help me out on jail-breaking this iPhone so that I can use it on t mobile. I have an iPhone 4 running on 5.0.1(9A405) on 04.11.08. Thank you.

Unfortunately... your iPhone 4 cannot be used on T-mobile. It requires an Unlock and there currently isn't one available for the 4.11.08 Baseband. Sorry.. :-(