BlackBerry Virtual Expert is a small but useful app from by BlackBerry that allows you to run diagnostics on your device to check that everything is running smoothly. First released last summer, it is one I use every so often, just to check things are running as they should do. This latest update adds tests for the accelerometer and gyroscope. And it also adds tests for checking the HDMI and USB ports are working fine too. Great for finding out if there is something wrong with your ports.
If haven't yet used BlackBerry Virtual Expert, it is an app I highly recommend. You can run a test that checks everything or you can just run tests for certain things like a keypad test, or a sensor test. There's also a Health tab just gives you quick overview of your device or when things are quite running like they should be.
BlackBerry Virtual Expert is available for all BlackBerry 10 devices as well as most legacy devices. It is also free so go check out today.