gitup 2

Hi Folks, Hope you can help. Was using my Git 2 today in waterproof case. All was working perfectly. Then the shutter start/stop recording button stoped working. I am now unable to start or stop a recording or take pics. Pressing for long or short periods does nothing Is there a fault ...

I wonder if anyone else has figured out how to use the external USB mic and also an external battery at the same time? I often use the Gitup 2 to record an orchestra, and sometimes need to use an external power pack for long recording sessions. I'm guessing that one could make a special purpose...