Please hold down these two buttons for 3-5 seconds --
QUAL and +/- button together for 3-5 seconds and it will reset the settings on the camera. After resetting the settings, try using the camera again.
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navigate to the Custom Settings menu and select Reset Custom Settings->Yes
navigate to the Setup Menu and select Reset user settings->Reset U1 and ->Reset U2.
Menu a2: AF-S focus priority set to "Release" Should be set to "Focus" for beep
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