Tools > Port Button Greyed Out?

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hey guys. i'm having issue arduino, can see title. whenever go upload sketch, under tools, port button greyed out. i've looked around everywhere, people seem have issue after installing due not installing driver device software. software installed me, , working fine few days until few hours ago, stopped recognizing port.

some details on when happened. accidentally clicked "upload" on sketch didn't want upload- went "arduino clear" sketch, acts clear both "setup" , "loop" functions uploaded sketch gone. neither of uploads finished. closed , re-opened program, seemed still trying upload. shut down , restarted (which might have been wrong move, didn't know else do). after that, rebooted program , no longer trying upload, "port" button greyed out, though had usb cord plugged arduino, , led on arduino lit signify plugged in. software doesn't recognize it. tried plugging in multiple different usb ports, , uninstalled , reinstalled software, life of me can't port button not greyed out. did bust something? there can fix this?

thanks , help,

~elivaras

every time sketch uploaded, erases sketch there; there no need or use "arduino clear" sketch.

have rebooted system since problem occurred? i've seen windows unhappy , not detect device until reboot.

is connected board right now? if so, remove it.

do other known working devices plugged same usb ports work? if not, shut down , unplug computer, wait few minutes, turn on (some usb controllers, if anger them sufficiently, turn off until power removed)

does board work on other computers?

what shown in device manager?

do lights come on? ones? see led blink when press reset button?

did might have damaged it? 16u2 used serial adapter in uno/mega easy trash if abuse power rail.


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