My husband has an LG phone that is 1 1/2 years old. It pairs to his headphone and to our Bose speaker, but won’t pair with a scale he uses to feed livestock. My LG phone pairs to it. A 7 year old LG phone pairs and a friend’s iphone pairs, but his won’t. I have tried deleting the app and reinstalling and I’ve turned off his bluetooth and phone and turned back on. Does anyone have any ideas?