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SPH-L720 unlocked for ATT question(s)

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By kluteni, Junior Member on 9th April 2014, 08:26 PM
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I just successfully flashed the modem/rom/etc on my new S4 for ATT. I have service with H+ on ATT but I am unable to get LTE, GPS, or MMS messages. Does anyone know if there is a way to get these functions working yet on this phone?


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9th April 2014, 09:02 PM |#2  
Sounds like the apns are messed up. Maybe search for what they should be and verify against what is set on your device.

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10th April 2014, 01:23 AM |#3  
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I have verified the APN is correct per another ATT S4 stock and my old S3 LTE APN, still no LTE. let me remind you that this is a n unlocked SPRINT phone with GSM enabled as primary connection..
10th April 2014, 03:02 AM |#4  
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Quote:
Originally Posted by kluteni

I have verified the APN is correct per another ATT S4 stock and my old S3 LTE APN, still no LTE. let me remind you that this is a n unlocked SPRINT phone with GSM enabled as primary connection..

Make sure the network mode is set to LTE/WCDMA/GSM or something with LTE if you have other options. Also, i'm not entirely sure the Sprint model has the same LTE bands enabled.
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