How to unlock iPhone 4 for t-mobile?

How to unlock iPhone 4 for t-mobile?

You can try either calling your cell phone carrier and ask them unlock it for you. Generally, you have to have had your iPhone with them for a minimum amount of time, usually 3 months or so. Otherwise, you can have a third party unlocker do it for a fee. You can find 3rd party unlockers either through a Google search (Google iPhone unlocking) .

I got my iPhone factory unlocked for use on T-Mobile USA through the people at: http://www.iphonefort-mobile.com/. The unlock was completed within 24 hours and I'm now using T-Mobiles network in the US And other networks when traveling abroad.

The best an recommended way to unlock your iPhone PERMANENTLY is to use Factory unlock service. They can unlock your iPhone via IMEI code.

Call the carrier, or find a good provider online or jailbreak (software unlock)