This will paste the error output from the upload into the code block. This will add the forum's code block markup ( ```) to your reply to make sure the error messages are correctly formatted. Click the icon on the post composer toolbar.Open a forum reply here by clicking the Reply button.This copies the full output to the clipboard. After the upload fails, you'll see a button on the right side of the orange bar in the Arduino IDE: Copy error messages.Attempt an upload to the non-functional board, as you did before.Check the checkbox next to Show verbose output during: ☐ upload.Uncheck the checkbox next to Show verbose output during: 🗹 compilation.Select File > Preferences from the Arduino IDE menus.Hi In order to gather more information that might help us to troubleshoot your problem, I'm going to ask you to post the full output from an upload attempt when in verbose mode.