Is at&t's SGS4 compatible?

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By SCFirefighter, Senior Member on 26th August 2014, 01:19 AM
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Is my wife's att version compatible with all of tmo's frequencies and technologies?
26th August 2014, 01:26 AM |#2  
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Wrong forum. Please disregard.
26th August 2014, 02:15 PM |#3  
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It's been almost a year since I swapped my SGH-I337 (At&t S4) for my SGH-M919 (T-Mobile S4) but I do remember SIM unlocking and enabling the AWS bands on the At&t phone and testing the 4G with a buddy's sim card. Everything worked fine.

Side note: the SGH-M919 works flawlessly on At&t's network. 4G LTE, MMS, visual voicemail, etc. No issues whatsoever. Hope this helps!
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