For me it was Sprint. They had decommisioned a nearby tower and it was a secret for 2 years as my contract ran out. I was lucky and found out then changed carriers.
About a week ago my phone started losing connection.
I don't mean dropped calls or sporadic service.
Absolutly no sevice of any kind. The circle with the line through it while "searching" kind of no service.
I have missed important calls and texts because of this.
Sometimes it appears I have service and will try to make a call or check voicemail and it shows it dialing but no sound and never completes call. When I go to end call, screen fades and locks up.
Like other people have posted, only way to fix is shut down and restart.
(side note- usually need to charge battery by now 'cause "searching" apparently really drains battery )
Had to restart 3 times today!
Only have 2 apps that did not come on phone and no games.
Seems to be common problem but why so long to start acting up.
Have had this phone almost 2 years.
Didn't see a solution when searching posts.