[ss109nato]

I use flip cover case with my priv.
The case is not from BBshop.
I tried some apps to make screen off when I close cover,
but nothing worked.

Can I do that with original setting? or using the other app?

[bluetroll]

You need to find out where the magnet is. Then put one on the case flap.

Posted via the CrackBerry App for Android

[ss109nato]

I do not use BB official flip case. So it doesn't have magnet.
Can I use proximity sensor to screen off?

[bcjci]

Yes you can if you use the Tasker app.

In Tasker, create a "State Profile" for Sensor/Proximity (default state that triggers an action is Near; use Invert to specify a Midrange/Far trigger state), then specify the task(s) you want to perform - e.g. System Lock.