I've had my X2 for over a year without any problems. But if I do have any problems with electrical audio stuff I use Deoxit. If that doesn't fix it then I pull out my hammer. Even new these devices may still contain contaminates from the factory which will cause audio static or switches that are not smooth. The F5 Deoxit is also a lubricant on top of being a contact cleaner. I use it on all my new/vintage audio stuff and the proof is in the pudding, you can hear a difference. As far as the looper freezing that's a firmware issue, but then again I've had deoxit bring things back to life and fix things that it's not supposed to fix. Sometimes a bit of dirt can cause all kinds of other problems. Try this first and see if it helps. It can't hurt. Audiophiles swear by this stuff.
