Everything worked flawlessly on Android 4.1.2. Today I receive the update to Android 4.2 and have it done on my Nexus 7 using the OTA. When I try to stream music to my bluetooth speaker system, the Bluetooth become unusable and almost broken. It starts stuttering or crackling every 10-15 seconds, even no way to turn Bluetooth on.
I try 3 different A2DP devices and also can not listen to music. When I detect and pair with devices in my car, bluetooth suddenly disconnect and then make apps crashing. Making 4.2 Factory image still has the same issues.
Hope Google release the patch soon.