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Astronaut

Android 10 calls dropped & not connecting. At&t

My wife and I both have the S9+ . we both got the android 10 update last week.  Since then our phones are often unable to make a normal phone call.  Incoming calls fail to connect even though the phone rings.

Trying to make a call usually results in 'mobile network not available'  

Restarting the phone seems to allow the device to reconnect, but then it still may drop the call (mobile network not available) 

 

Anyone have a way to back out the android 10 on these phones?  This is unusable, as rely on these for business calls.