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[Reply #15 on:]

Hello, today is first day playing with a Leonardo. I am having the error shown in picture.
http://imageshack.us/a/img191/3382/67934722.png
I did search a lot on forums and follow the instructions there. Tried auto and manual driver install also. Tried rebooting, redownloading, reseting, reunzipping etc. Tried changing the port to com=>5. I just can't make it work. Pleaaase help.

[Reply #16 on:]

Just got my Arduino Leonardo today from element14. and after connecting to my mac (running mac OS and windows7 OS), found out that i have the same problem with you guys. my Leonardo VID is not the same as the VID in leonardo inf file from Arduino 1.5. here is the screenshot of the 2 device the came out in my devmanager when i connect Leonardo:


and as expected i wont be able to install the driver completely.

but after some editing on the inf file, and updated the leonardo driver, the driver installed completely, uploaded blinking sketch,and  blink the led without problem. (im not really sure though if it's really ok now, since i have a diff problem on serialevent sketch. )

here are the changes made:
right inf file is the original inf file from Arduino 1.5. VID is not the same as my Leonardo VID
left inf file is the edited inf file. i just change the VID and made it the same as my Leonardo VID


and after updating the driver of my Leonardo, driver installed successfully.
but still, am having problem with SerialEvent  sketch on Leonardo. 

[Reply #17 on:]

I concur I'm on a MBPro-Retina and I had to change the PID value in in the arduino.inf file to get my driver to install.
Thank you so much for the information!!


Roo