The phone suspends when there is no activity to keep it awake. Music playback would not allow it to suspend. The volume buttons seems to be causing the phone to resume and change levels. These buttons should not be a wakeup source if that is what is happening.
The phone suspends when there is no activity to keep it awake. Music playback would not allow it to suspend. The volume buttons seems to be causing the phone to resume and change levels. These buttons should not be a wakeup source if that is what is happening.