Hi thank you for answer me, on firmware BV6000_Blackview_V01_20160608: 1) in camera settings there is nothing about sound 2)The proximity sensor calibration screen: Step 1 ok http://i66.tinypic.com/rgy0ld.png step2 failed, i tried in an empty room following all the step http://i63.tinypic.com/n3xen7...

Hi, i have some question about bv6000 device, i hope you can help me...
1)How to disable the camera shutter sound? (i want only silence the camera click sound, not all notification)
2)The proximity sensor calibration failed at 2 step, i tried all way but nothing.
3)The compass calibrate failed too.