Mobile Carriers in the United States

[klick]

I used the settings that T-Mobile listed on their site for BYOD. The PinePhone automatically set the APN as Fast.t-mobile.com but it did not pick up the MMSC.  I tried to manually enter the MMSC but the phone would not save it. I set the phone to 2G/3G/4G and tried selecting the "Internet and MMS" option (phone would not save the Internet and MMS option) and nothing changed.

The texting partially worked so I assume I was connected to T-Mobile in some capacity. As I mentioned, I was not expecting full texting parity since the SIM is tied to Apple iMessages. The phone settings function lock up on occasion so I have to close the settings and reopen. Is there a swipe or option to go back to the previous screen? In the settings, there does not appear to be a save function or a previous screen option after making changes. I have tried pressing the "v" in the upper right corner and does not save the changes.

The first time I placed the SIM in the PinePhone I had received a phone call that went to voicemail and I received a notification on the PinePhone. I was able to listen to the voicemail, but the sound was so low that I could barely hear it, even though the phone volume was turned to max.

I'm still waiting on my device, so my ability to help is quite limited (i just noticed in your initial post that APN settings weren't mentioned in your description.)

Judging from some of these questions, I'd suggest you try posting in the UBports subforum. You might get more eyes on it and support there, vs buried in this long thread.

Thank you for you recommendation! I will follow this up on the UBports section.