I originally purchased my phone directly from Samsung, locked to Tmobile. 6 months ago I switched to ATT, it was a very hard process apparently because I didn't "buy it through T Mobile". Anyways, I am still receiving updates via TMobile and have all the tmobile apps/splash screen.
As of Saturday night I am no longer receiving text messages on my S20 Ultra. I can make phone calls, surf the web, and send texts with it though. With the same SIM I can receive texts on my S9+ and my S21.
I have been on the phone with both ATT and Samsung and all it is, is hours of troubleshooting and pointing the finger at each other. I just want my S20 Ultra working again and am completely lost on how to even get it working, it's too expensive to be a paperweight.
Any help is appreciated.
-reset network settings
-various APN used
-factory reset phone
-updated/disabled many apps and services under the direction of both Samsung and ATT
-tried different messaging apps
-cleared cache of messaging apps/sim card saved texts
I appreciate the response, but I have already been on the phone with AT&T for hours and they say its a Samsung issue. Samsung says it's provider issue. Stuck here in the middle unfortunately so that is why I resorted to this forum.