I just tried this and it didn't work. My data was working fine and yesterday stopped working. My account is up to date and active and has data available but it doesn't work.
i think your phone only has band 2, 5, 7 on 4G LTE, which are not enough, you need more bands. Having only some but not all compatible bands means it might not work on 4G all the time, won't be stable
yes, your phone does not have the proper 4G/LTE bands. It is good it works on 3G now. But there is a chance the 3G network might comes to an end in 2 years, no firm date yet. But your phone won't work once 3G network is shutdown
It has 4G bands. I don't know how the preferences got changed or why it suddenly stopped working. I did go to the US (I didn't buy roaming or data). Could the auto settings on my phone have changed when I was there? Not sure.
But your 3G plan should still allows you to use the 4G network unless your phone has only the compatible 3G bands and not the 4G bands. What phone you have?
I did that too but it didn't work. When I looked closer at my plan I noticed it was 3G speed. My preferrred network settings were somehow changed to 4G. I set them to 3G and now my data works.
