Motorola RAZR D3 power button doesn't (un)lock screen I have Motorola RAZR D3, and when I press the power button, nothing happens:


If the device goes to lock screen (after 5s), I can't unlock it with the power button, and the only way is using the soft reset to restart the phone.
If I press Power + Volume down, the device is restarted after 10s.


Thing I have tried:


Check Settings > Security > Power Button instant lock and it's checked.
Reset the device with Settings > Backup &amp; reset > Factory data reset and I still have the same problem.
This is not the ideal solution, but is still a working solution (bad solution is better than no solution):

Using the reference from TrendBlog.net, I installed Power Button to Volume Button which replaces the power button functionality (un/lock screen) with the volume buttons (up &amp; down).