what I have finally done is using the "open signal" app to find the best network provider in my area and I switched to it. it's not the most ingenious solution but it mostly works for me. I still have network issue on my new Airtel sim but it is better than worst.
Completely agree. I have used Sammy phones earlier too but M30s will be last Samsung phone.Now there are much better options.I purchased Sammy till now only because of Amoled screen, but now other Amoled phones are avl too. Thanks for screwing ur customers with updates.