Hello. I have a strange experience with my bbs02. One day when I pressed the start button it was completely dead. The display was completely dark. Checked the battery, it's OK. Checked all cables and connections, found no faults. Took off the display and can see something that looks like a little rust on the USB port. Cleaned but didn't help. Could it be the Display that is broken by moisture, or something else. Not happy to buy new parts, such as display, as I am not sure that is the fault. I don't really want to buy a new controller, as I don't know if it's the fault either. Greetings from one of your fans in Norway. Do you or any have a tip what to do to fix it or what the trouble is. Sorry for my bad English.