02-09-2013 11:40 AM
I know this post is old, but I ran into a similar problem recently. I discovered an easy solution to this problem in the form of an app from SRID Games. The app is called "Slide Lock OS10 Style". I had the same problem as you with the mute/unlock button not working on my BB Bold 9000. This app allowed me to use alternative buttons (or gestures) to lock/unlock the buttons of my phone. Have a good day!