Cannot Make or receive calls on non AT&T 4G phone. 3G sunset is to blame.
Re-posting this since the other threads all have "Accepted solutions". In my opinion "buy a new phone" is not an acceptable solution, and I will not be marking it as such. AT&T need to fix this issue.
About 2 days ago, my phone stopped working for any voice calls. I have a Galaxy S10+ and I just upgraded to One UI 4.1, and I think this may have been the start of the issue. If you have a non-AT&T Galaxy, don't take the upgrade, it will kill your ability to make phone calls.
To help others out, so far, I have tried the following and it *DOES NOT* fix the issue:
- Restart the phone (several time). Of course this was never going to fix it
- Call AT&T support and ask them to reset my wireless service, no help
- Went in to the AT&T store and asked them to replace my SIM with a new one. Makes no difference at all
- Did a factory reset on my phone. Doesn't help
- Manually set the wireless settings according the the AT&T table in "Access point names" settings. Makes no difference
Just to be sure, I placed my SIM in my wife's phone (identical phone but she has not taken the One UI 4.1 upgrade), and her SIM in mine. My SIM works fine with my number in her phone. Her SIM fails with her number in my phone.
Conclusion: It's the phone, not the SIM, and even a factory reset won't help.
I think I know what is causing the problem; maybe one of the AT&T techs on this forum can confirm. AT&T have stated elsewhere that after the 3G sunset, having HD voice is a requirement to make calls, so there appear to be 2 requirements of phones:
- Phone must be capable of 4G; this gets you service so you can use 4G data and send/receive text message via SMS
- Phone must be capable of HD Voice; this allows you to make and receive phone calls
If you have 1. but not 2. you can't use your phone to make calls, but everything else would appear to work fine.
The thing is, a Galaxy S10+ should be capable of HD Voice calling, but I think my upgrade to One UI 4.1 may have broken it. In addition, I have a foreign S10+ with the Samsung branded processors on-board (different to the U.S. models).
Any of the AT&T techs care to comment?
BTW: "Buy a new phone" is *NOT* an acceptable solution, please fix it.