Originally Posted by Playin24_7
Odin says it cannot connect to the Serial COM Port. What does that mean and how do I fix it?
It means you don't have the drivers installed for your phone. Go get Samsung Kies
and install it. It will install the drivers you need. You don't have to run Kies, you just need the drivers that come with it.
When you've done that (probably a good idea to restart your PC first) then put it into download mode using the method you describe and you should see windows installing the drivers for your device. When that is done, the open Odin. At this point you should see a screen that looks like this:
If it displays the com port and it's yellow as shown the your good to proceed as the instructions indicate.