In my area T-Mobile upgraded the towers in May 2017. Ever since the upgrade my 3 unlocked phones only get a maximum speed of 2G. That's technically a downgrade because I used to get 3G and 4G fine for over 5 years. I know it's the tower upgrade because if I drive 40 minutes away I get 4G in areas with old tower technology. I am not happy at all because T-Mobile told me they can't explain why my phones stopped getting speeds higher than 2G in my area. My phones support all the bands and technology required to run on the T-Mobile network. They advertise it should work but it doesn't work so I am getting fed up with T-Mobile. T-Mobile tech support finally gave up and said I need to replace all 3 unlocked phones with T-Mobile branded phones to get 4G again. So T-Mobile is false advertising by saying unlocked phones with the bands they list will get 3G/4G.
Does anyone know why T-Mobile decided to stop supporting unlocked phones? I don't understand the reason for doing this, upgrades are supposed to be backwards compatible.
I have pretty new phones which are the Samsung A3 2016 and I am using the latest APN T-Mobile told me to use. I am wondering if anyone has had the Samsung A3 2017 get 4G on the new tower upgrade? I don't like the T-Mobile branded Samsung phones because I find them too heavy and large.