Debugging?

You talking about under developer options?

In order to make developer options appear you have to go to Settings / About phone / find where it shows " build number" and tap on it 7 times.


Sent from my HTC ONE using AC Forums mobile app
 
Up up down down down left right left right B A B A is the unlock code that makes the Bluetooth music sound good.

Sent from my XT1080 using Tapatalk