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will Sprint Iphone 4s will work on AT&T or T Mobile

Journeyman

will Sprint Iphone 4s will work on AT&T or T Mobile

Hi wanted to check after Sprint unlock the phone and on contract completion/earlier contract completion, will Sprint Iphone 4s will work on AT&T or T mobile GSM network

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6 REPLIES
Sprint Product Ambassador

Re: will Sprint Iphone 4s will work on AT&T or T Mobile

Even unlocked, the SIM slot will not support a domestic carrier SIM; only overseas SIM cards will work.

Product Ambassador, long time Sprint employee
Journeyman

Re: will Sprint Iphone 4s will work on AT&T or T Mobile

the new SIM cards they use for iPhone 4 are a little smaller than the older ones. But my uncle just cut the extra parts of his old SIM card so it now fits the new smaller ones, and it just worked!

Journeyman

Re: will Sprint Iphone 4s will work on AT&T or T Mobile

Will a Telmex GSM sim from mexico work? I keep on hearing overseas but there are International markets in the americas with GSM service.

Journeyman

Re: will Sprint Iphone 4s will work on AT&T or T Mobile

Even unlocked the iPhone 4s will not recognize SIM cards that are for other US based carriers.

Master

Re: will Sprint Iphone 4s will work on AT&T or T Mobile

To determne if a particular sim card will work  for service outside the United States  contact our international support team  at l 888.226.7212

Journeyman

Re: will Sprint Iphone 4s will work on AT&T or T Mobile

Look up Gevey sim for CDMA or R-SIM.... (you will need 5.0.1 and jailbreak or 5.1 and jailbreak)

http://applenberry.com/store/gevey-sim/gevey-ultra-s-for-cdma

http://www.eachsupplier.com/r-sim-iii-3rd-generation-for-iphone-4s-gsm-ios-5-1.html

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