Unlock iPhone 4 on 4.0.2 with 1.59.00 baseband

[Constantine!]

Hey guys,

I'm getting alot of mixed answers researching about this everywhere. Most of the stuff is outdated. So here's my situation:

I have a iPhone 4 on 4.0.2 firmware with 1.59.00 firmware. I am with T-mobile so I want to unlock this iPhone 4. I hate gevy sim crap, I want to unlock using the original T-Mobile sim.

So we are in year 2012, so is this possible to jailbreak and unlock this iPhone 4? If so using what?

Thanks fellas!

 

[Applejuiced]

Yes.
You can jb with jailbreakme.com and unlock with ultrasnow from cydia.
Make sure you don't lose that unlockable baseband. It is very valuable.