my S8 plus refused to pair with my car audio media. device itself is not visible from car Bluetooth setup. it does working properly until last month then it suddenly stopped. any update breaks it? S8 can pair with other devices like laptop and s6. An...

SIM in slot 2 not detecting while in 2g network area, if I moved to 3g network it start working. I tried to put that SIM in another mobile it work fine in 2g area, so it seems my s8 plus has issues in detecting 2g signals