COM PORTS

Projects Networking, Protocols, and Devices
1

I am a nooby,,
I changed a few things in settings,( cant remember what ) on my UNO while trying to add a bootloader to a NANO via the UNO,,I dont know if that has done something but now I cant seem to connect to COM PoRTs on my laptop,I downloaded a virtual serial port driver and added PORTS 1 through 8, they show up on my device manager, with no yellow triangle,,although the original port has the yellow triangle still, and I have changed that port number, but still the yellow triangle,,
I am now thinking its in the settings of the arduino UNO,,
Can you tell me,what are the factory settings for the UNO so I can do a factory reset,or a manual reset. I am hoping that is all the problem is,,Please advise.

Cheers Ted

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2

That is not a genuine Arduino...
you need CH340 drivers not Arduino drivers - How to Install CH340 Drivers - SparkFun Learn

3

Assuming you are using the arduino IDE to access the UNO, with the USB plugged in, have you gone to Tools and scrolled down to Port to see if a com port is listed? If one is listed, make sure it is selected.