Note4 Modem

[kyrsti]

Hi!

I do not know if anyone has met the next problem.
Note4SD phone
I can not call anyone after a 1SIM cell failure. I'm not even available. When starting a call, it shows a little bit of time for the signal and then picks it in x, a while later writes that the network is unavailable.
2SIM ua. card works perfectly.
1SIM data connection is perfect. Do not switch to 3G on call ...
Provider: Telecom
Software: Xiaomi.eu 7.11.23

Thanks