I' w updated my phone to wrong region firmware. I lost my services. I'm not sure, but maybe it is enough to get some radio files from firmware for my region? from update.app
In my device, I can find files modemst, modemst1, modemst2. I think it's CDMA MODEM, LTE MODEM & LTE MODEM2.
Any advice, info or pointing to the right direction, would be great.