Hello, I have problem with Arduino Leonardo board.
I cannot find COM port for Leonardo neither on OSX, Linux and Windows.
When I power on Leonardo, RX and TX LED's aren't blinking, but RX led used to blink before problem.
I suppose that problem lays in bootloader or something.
When I power on board, led next to Power led blinks few seconds which is normal, but I cannot communicate with board.
What should I do?
Thanks in advance
After few hours of frustration, I managed to get Leonardo working again.
I noticed in Linux that when I connect Leonardo to computer, there is communication port available for about 10 seconds.
I opened blink sketch, clicked upload, and when it's done compiling, I connected Leonardo to USB. Sketch uploaded successfully, and after that, usb communication worked again and now I can upload everything. It's critical to connect Leonardo after compiling stage was done, because com port lasts for only 10 seconds or so.
Sorry for my bad English, and I hope that this will help somebody.