LG G4, LS991 SPRINT BLUETOOTH NOT WORKING AT ALL// marshmallow

[edwinalexander]

Greetings,

I have tried to do a factory reset,but the buletooth is not responding at all
LG G4 LS991, SPRINT,
SOFTWARE VERSION IS MELLOWMALLOW ZVB V1.0- GLOBAL



after the upgrade to marshmallow the bluetooth is not responding, also I have read that if I had the zvb version software I could never go back to lollipop, someone else has this problem and could solve the issue.

thanks