After setup my project and loading my first sketch on a brand new Arduino Leonardo, the board doesn't connect with PC anymore. Plugging USB connection now I see at first "Arduino Leonardo" on COM9 (like the first time) but then it disappear from COM ports (while at first it switched on COM8 and it r…

Possible Leonardo damaged on first sketch ?

system January 28, 2014, 12:31pm 10

Hello, I have the same problem, but I cannot upload anything in the short time it appears in device manager. Any advices? Please help me! Thank you!

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