I am having some issues with my Arduino UNO. For all the following I have used Windows based machines.
I have plugged it into several different computers with various cables and the UNO does not power on. On some computers, a Power Surge error for the USB port comes up. So presumably the device draws too much current and the USB port cuts out to protect itself.
I am able to attached an external power supply to get the ON LED to light continuous and the L LED to flash. Even so, when I connected the UNO via USB, the UNO is not auto detected (so updating drivers is a moot point since the computer doesn't see the Arduino at all).
Any clue what might be happening here?