Mobile data stability problem

Guys I've a big problem, that is not related with a specific rom becouse I had it, with every rom I've tried.

My mobile connection runs well but, sometimes it crash and never turns on again. Cyano 12 gives me an error simbol (!), other roms seems to be online but they're not.

Sometimes putting airplane mode on and off reset data and it runs again but, really more often I have to reboot the phone.

Tried 11s, coloros, cyano 11 and 12, Paranoid, SlimKat, Euphoria all roms has the same problem (coloros is a bit better).



Any suggestion?



Thanks in advance

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