Hi, I'm new here and I have a problem with my Kangertech subox mini. I dropped the device and the battery fell out. I put the battery back but it was loose, and there was a gap between the battery and connector (apparently, this is a pretty common problem). I managed to fix the top connector, it popped back out. I put the battery back and it looked like it was placed correctly, touching both the connectors. I thought I fixed the issue, but now the whole device is dead! The screen is black, it won't turn on and it won't charge. Any suggestions on what to do next?