Blackberry 9790 manual Common troubleshooting, Cant make or receive calls, Pictures

User GuideQuick Help

Play the previous audio file	Press and hold the Volume Down key on the right side of
	your smartphone.
Turn on the audio boost feature if you're using a headset	Press the Volume Up key until the audio boost feature turns
	on.

Pictures

Zoom in	Press I
Zoom out	Press O
Pan up	Press 2
Pan down	Press 8
Pan right	Press 6
Pan left	Press 4
Rotate	Press L

Camera and video camera

Zoom in before you take a picture or record a video	Press the Volume Up key.
Zoom out before you take a picture or record a video	Press the Volume Down key.
Take a picture	Press the Convenience key on the right side of your
	smartphone.

Common troubleshooting

I can't make or receive calls

Try the following actions:

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