It was not reacting to earphones .when they are plugged in
after beta 11 update it's not reacting to headphones
same problem i facing
3.5mm or Type-C?
Oneplus Bullet Earphone Type-C
There's an issue with this atm. Might I suggest a third-party equalizer solution?
OnePlus Music Festival: Megathread
by Joel Jacob, 2019-08-22