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Old March 22nd, 2014, 02:38 PM   #1 (permalink)
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Default how to make Sprint device use att network

How can I make my galaxy s4 use att. Samsung told me there are unlock codes I have to Get from Sprint. But I'm avoiding that I owe them, for good reason.

How can I make my Sprint contract phone become a prepaid att phone

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Old March 22nd, 2014, 02:40 PM   #2 (permalink)
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Sprint uses a CDMA network and AT&T uses a GSM network so you can't.
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Old March 22nd, 2014, 02:52 PM   #3 (permalink)
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So there's no way humanly possible to to access the Sprint unlock codes without calling Sprint?
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Old March 22nd, 2014, 02:57 PM   #4 (permalink)
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Another words there no way to change cdma to gsm network?
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Old March 22nd, 2014, 04:25 PM   #5 (permalink)
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Quote:
Originally Posted by resa2012 View Post
Another words there no way to change cdma to gsm network?

Right....
CDMA doesn't use Sim cards and GSM does, so they are not compatible.
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Old March 22nd, 2014, 05:48 PM   #6 (permalink)
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This is entirely possible. you need to sim unlock the device by either contacting sprint or following the xda guide/tool. once you have unlocked it put the att sim in and then follow the att/tmobile guide and youll have a sprint s4 on att/tmobile. youll need to edit the apn's to get data/mms working, and even then it will be 2g/3g/4g hspa+ youll get. sprints s4 does not have the right bands for att/tmobile 4glte, but it will at least be working
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Old March 26th, 2014, 04:48 PM   #7 (permalink)
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I bought a used Sprint S4 that I now use with straight talk (AT&T) prepaid. I had to unlock it internationally first, then domestically. It took me many hours because I wasn't sure what I was doing but just like Shabby said, you'll get H+. Everything works including MMS. In my area its FAST but results may differ. I used this thread to unlock:
http://forum.xda-developers.com/showthread.php?t=2659679
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Old April 4th, 2014, 04:49 PM   #8 (permalink)
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Oh man Thanks I actually unlocked mine too to be used internationally but I want to unlock it so I can use it domestically I'm going to check out the post.
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Old April 5th, 2014, 10:38 PM   #9 (permalink)
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Proof that it can be done. This is a video I did to show that the Sprint S4 can be unlocked Domestically http://youtu.be/NcBipf25u6s
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Old June 10th, 2014, 03:02 PM   #10 (permalink)
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Thx shabby

Edit: After revising the entire thread.. my thanks must accompany all that helped make this information obtainable. Lol
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Old September 9th, 2014, 07:37 PM   #11 (permalink)
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Default I Need Help Switching

I need my Sprint Samsung Galaxy S4 switched over to Straight Talk can someone please help me my phone is completely deactivated
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