So I have been using an Arduino Mega for a while and it worked fine, now that's it is installed in a box, I bought a genuine Arduino Uno for breadboarding, however it seems I can't communicate with it. The "on" light is on, but the other light beside the "L" just blinks. I have tried 2 different usb cables (although not the little short blue one that came with my super kit). I am running Windows 7 64-bit.
My drivers are all installed, I can select "Arduino/Genuino Uno" from the list of boards and "Com7 (Arduino / Genuino Uno)" from the ports. For Programmer I have "ArduinoISP" selected. However when I try to upload it code, it just says "Uploading..." forever.
When I was installing the drivers, it was taking a while so I selected "Skip finding Windows Updates", however when I go to my devices it says it is working properly.
Edit: I just discovered it says "Uploading..." even when my nothing is plugged in, I don't even get an error.
Edit: Haha! I discovered that it was because I just upgraded my boards to1.6.12, I changed back to 1.6.11 and it worked! What's with that?