Asus zenfine 2 (z00d) network issue

Hello everyone,
I have a problem with my Asus z00d.
Long story short, when I use the phone it randomly loses mobile signal (voice and data) and I’m unable to search mobile networks because when I try to do this operation an error pops up saying that an error occurred while searching for networks.
I tried the last three builds, but the problem still occurs and I don’t know what to do.
The only thing that I know is that if I use the stock rom it works perfectly.
I hope someone could help me.


Same thing happens to me on the same device.