[Seshaadhree S]

I have noticed my BlackBerry camera app draining battery and used 36 % not even opened app... any one please help.. Thanks

[marcaccioc]

What troubleshooting steps have you taken? Have you tried rebooting? When was the last time you used the camera or an app that used the camera? Likely that app didn't close properly.

[Seshaadhree S]

Haven't used since last full charge. Rebooted 1 day ago.. And I have faced this couple of times..

[FF22]

That does sound unusual. Too bad the BB contact has moved to another job with BB.

I would suggest doing one or all:

From BB blog: How to reset PRIV by BlackBerry | Inside BlackBerry Help Blog

Three restart/reboot methods

The first method, which should be used 99.9% of the time when you want to reboot your device, is using the Reboot option that appears after pressing the Power key.

Press and hold the Power key for 3 seconds
Select Reboot from the menu that is presented

The second reset method should be used if pressing the Power key does not produce the menu with Power Off and Restart. For example, if an app or game you are using won’t close, use this option to restart your device.

Press and hold the Power key for 12 seconds

Third method: Should your device fail to respond, the final reset method is to press and hold the Power key for 32 seconds which is equivalent to removing the battery. This should result in your device booting up successfully.

If it fails to start, however, verify you are not pressing any other keys such as Volume Up, Mute, or Volume Down while performing any of the reset methods listed above. If you use a case for your device you may want to remove it as it might be pressing a button inadvertently.

And just for an extra measure, if needed:

Safe Mode:

The next step is placing your device into safe mode.

When used, Safe Mode will disable any third party apps or games you have installed. As a result of this, should your device not exhibit the issue while in Safe Mode it’s safe to assume the issue is specific to an app or game you have installed. Safe Mode may also remove apps and/or widgets from your various home screens when you go back to Normal.

Press and hold the power key
Tap and hold Power off (that is Press/Hold the Power Off prompt line) when it appears
When prompted, tap OK to reboot to Safe Mode

To get out of Safe Mode, press and hold the power key followed by tapping Reboot.

After testing, should your device not exhibit any issues, the next step is to remove recently installed applications one by one until the issue is resolved.

[gebco]

Sometimes a force stop is all that is needed. I have a beta app installed that does this. Force stop cures the problem each time.