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Can verizon S3 work with ATT?

post #1 of 19
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TITTLE
post #2 of 19
Nope. The Verizon S3 uses CDMA cellular radios which are incompatible with the AT&T network.
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post #3 of 19

it may if you flash the radio.. the phones all have the same antenna's .. so it will pick up the signal just fine. VZW uses same freq's as ATT .. just different bands [which flashing the radio should fix on your phone].

 

 To do so though.. you would need to find a radio firmware from a VZW GSIII.. and have a rooted phone that will allow the flash. As well - there are some dialer codes you can use after the flash to make sure that CDMA is enabled on the phone.

 

*did you already perform the steps to carrier unlock?

 

1. Root

2. Carrier unlock

3. Flash radio

 

.. not tried myself.. but those are the steps if it is going to work.

post #4 of 19
yeah you'll have to get an unlock code for your phone and flash a different Modem forthat to work, call verizon and ask for an unlock code. Thing is AT&T is GSM but they can work with you to get it working, might want to ask before you do anything though, especially when you start flashing modems, it's generally regarded safe but you never know thumb.gif
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post #5 of 19
Sell VZW phone and get an unlocked or ATT phone?
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post #6 of 19
Not sure how it could, there's no room for a SIM card in the Verizon version.
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post #7 of 19
there's some people over on XDA working to get the GN2 swapped for unlocked GSM use by swapping the SD/Sim card daughter board. There's some hacking needed to modify the radio software too.
the GS3 already has a SIM slot (for LTE purposes)

So technically speaking it should be easier to hack the GS3 to run on at&t's GSM network since its already using a GSM based LTE setup
Edited by Nenkitsune - 1/13/13 at 12:26am
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post #8 of 19
Quote:
Originally Posted by wierdo124 View Post

Not sure how it could, there's no room for a SIM card in the Verizon version.

Oh, alright
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post #9 of 19
That's 4G LTE SIM.
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post #10 of 19
No. They are CDMA like Sprint. The SIM card is for the 4G LTE.

AT&T and T-Mobile uses SIM Card.
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