Your phone needs to be carrier unlocked. Most phones are. Phone will work, just head to Straight Talk's. 'Switching to Straight Talk: Which Cell Phones. Jan 13, 2013 unlock phone to straight talk. That phone will have to be unlocked, AT&T sims will not work in TMobile phones otherwise. Spectrasonics Omnisphere Keygen Mac. Unlock My Iphone 6s Plus For Free on this page. Click to expand.

Only the ST Nokia smartphones have unlocked sims that can be transferred to other AT&T phones. If you have one of those Nokia smartphones you can run the sim on any locked AT&T phone, you do not need to get a unlocked unit. I think maybe I misunderstood your question. If you are asking if you can use the Nokia sim in a prepaid AT&T phone the answer is yes. Unlock Wifi On Iphone there. I use my E71 sim in a LG Thrive which is one of their prepaid phones, my phone is not unlocked and it works just fine. Best Buy Iphone 5s Unlocked Deals more. If you want to use your Nokia sim in a TMobile phone, that phone will have to be unlocked, AT&T sims will not work in TMobile phones otherwise. Only the ST Nokia smartphones have unlocked sims that can be transferred to other AT&T phones.