Loss 4g Capability

I have an unlocked Metropcs LGMS659 that I'm using with AT&T. Since they did an update (of some sort) I no longer have 4g, only 2g. We've tried everything from a new sim to master resetting to even having my phone removed completely from their system then added back. I usually have 4g for about...

Loss 4g Capability

Loss 4g Capability