I am having some problems with my AT&T Galaxy Note 3. I have not been able to figure out the cause. I flashed Dynamic Kat (newest version) on my phone and it is having problems making outgoing calls. I show 3 bars 4G LTE and when it switches to 4G while making a call, the reception goes to 0. I wait and the phone shows that it is not registered on a mobile network. The weird part is that sometimes the phone can make an outgoing call. I have tried two different ROMs and so I think its probably the phone's fault. My mobile network works.
Another symptom is that sometimes when I restart the phone, the phone says it does not have reception and I have to take out the battery and try again. Are there any settings in the samsung hidden menu that would cause this problem?
Data and everything else works, it just that when it switches to 4G while making the reception goes to 0.