I had a burner flip phone pay as you go for ages. It is 3G, lately I would text numerous providers and receive no answer. I would then use my 4G Lte and almost all of them would reply. I tried calling on my 3G and the screen would say dialing but your not hearing it dial as before.  I lived in small town market close to metro area and it seems to work fine there. I realized 3G is ancient, is this coincidence or do I need a new burner phone for hobbying.