There is a huge network issue on my F415F, where while using one 4G SIM (like airtel & Vodafone), network works properly only if only 4G SIM is im the device. But inserting another SIM, the 4G network commection breaks automatically, and VoLTE disappears. I tried it with other device, and they show no such problem (Like my previous galaxy A20).
No such issue on LTE networks (like JIO), but issues in 4G network, wether its airtel or Vodafone. Tried swapping sim slots, formatting phone. Problem still persists. With both 4G networks (Vodafone, Airtel).
SIMs aren't even the problem, as this is with all airtel, vodafone, idea, Vi SIMs.
