Straight Talk/walmart iphone5 carrier options

[cellulartalk]

in 2013 i bought a iphone5 from walmart for use on straight talk 64gb 800 bucks. i would like lte and the phone to have all functions working as it should but it seems locked to straight talk in someway. i was able to get a st att sim and have 4g working but i would frequently get throttled...

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Courtesy of WestNet Wireless
www.westnet.ca