Hi guys, I finally solved this problem on my blackberry dtek 60. Blackberry's active focus motor is a bit allergic to impacts. A slight fall impact (Not enough to crack the screen) will render the Camera of these amazing devices useless. (Not focusing beyond a foot. This is a solution for any blackberry camera that fails to focus eg Blackberry Priv, Keytone ect.
1. Turn off your device
2. Heat the back cover and pry it open. (Follow procedures of back cover removal)
3. Turn it on while open and attempt to focus on something with the Camera
4. You will notice the lens is attached to the motor that moves the square lens cover up or down. This is the mechanism that fails after an impact on the device. (The square lens holder settles in a position which doesn't allow the motor to move it freely due to friction).
4. Align the movable part of the camera (A square metallic lens holder) on its moving space so that it can move up and down freely.
5. Try focusing while open. BAM! Your Blackberry Camera can now focus again.
6. Align fingerprint scanner and close your Blackberry. Enjoy your camera and DON'T drop it again.
Please note that Blackberry cameras can also become unable to focus after long use.
DON'T USE YOUR BLACKBERRY CAMERA FOR EXTENDED PERIODS OF PHOTO SHOOTS. The motor coils overheats and fails, making your camera unable to focus. In this case a cool down break from camera use will solve the lack of focus. This solution is for the "permanent" inability to focus caused by a blackberry device impact or fall.