Does the Unlocked iPhone 6 Plus Model A1524 function on T-Mobile?
Running 8.2 and updated carrier settings. I've exhausted the troubleshooting: restored phone as new, swapped SIM cards, and made sure carrier settings are correct. I got a replacement phone today since the technician did see a software issue but I'm having connectivity problems with T-Mobile. Very slow true unlimited 4G LTE data at less than 1 Mbps and calls drop constantly inside and outside of home. Spoke with T-Mobile support and they said the coverage is excellent in my area and there are no tower issues. Never had this problem before. I did have a T-Mobile branded phone before and now this unlocked version is giving me trouble. Are unlocked models not fully compatible with US LTE networks? According to apple.com/iphone/lte the unlocked Models A1586 and A1524 also support LTE networks listed for models A1549 and A1522 so I don't see why not. Do I need to switch to a T-Mobile branded phone? I'm at my wits end here. Your input is appreciated.
iPhone 6 Plus, iOS 8.2, Model A1524 Unlocked