My G5 is about 3 months old. Last week it installed an LG software update. Since then, whenever my signal gets weak or lost (such as in the subway or a basement), it does not reconnect back to LTE once I have a strong signal again. Sometimes I will get a phone signal but not data, other times I will not even get a phone signal at all. Once I restart the phone, everything works fine again.
Toggling mobile data on and off does not work. Turning airplane mode on and off actually makes it worse (I lose signal entirely). Wifi connection is fine.
I have tried resetting the network settings, no change. I then did a factory reset, no change.
This happens several times a day so it is very annoying having to always reboot my phone.
Does anyone have any advice, or will I need to replace my phone under warranty?
I cant tell for sure if its location specific, but it definately happens a lot when I am at home. People keep asking me "are you in the basement?" as my voice is constantly breaking up to them. The interesting thing is that I hear them loud and clear why they struggle to hear me. Then the call would disconnect and then I will look at the network signal strength and I get at most one bar. Earlier today it happened at Bayview and hwy7 - the phone lost network for about 30 minutes and nothing would make it connnect - not restart, not disabling LTE, 30 minutes later the phone started workign fine, and I did not move. By the way I never get more then two signal strength bars when I am on LTE. Not in any location. Disabling LTE seems to help somewhat but not much. Happens to both my LG G5 phones.
I suggest you try your sim in a different phone to see if the issue persists. This will allow us to know if the problem is with the phone or the network.
Keep us posted of the outcome.