If you are on windows, open device manager. When you first plug in the turned on arduboy do any leds on it flash? Does the device manager automatically window refresh? Under the COM port drop down does something along the lines of “arduino leonardo” pop up? I’m gonna guess your computer doesn’t have the correct drivers installed and thus doesn’t see the arduboy. If you don’t have the arduino IDE installed then install it, and if you do try reinstalling it and make sure to allow it to install usb drivers (a pop up should appear during installation asking for permission to install usb drivers).
That all sounds correct to me. I haven’t played Sirene myself, does anyone know if there are any special considerations to get the arduboy into bootloader mode with this game loaded? Barring that you might have to play with timing pressing the tiny reset button on the bottom of the arduboy and clicking the upload button on the computer to get it to successfully upload a game. I’ve never had much trouble uploading games and it is usually plug and play so to speak with the exception of games like arduventure which require you to enter an upload mode on the arduboy itself before allowing you to download a new game.
followed the instructions. still getting the red screen error with arduboy uploader, and proejct manager keeps hanging. I seem to be able to upload using the IDE, but not the other sofware, and I’m not exactly sure how to upload from a hex with the IDE.
tried arduboy game loader and it doesn’t get past this point. maybe it doesn’t have a bootloader?
Thanks @Mr.Blinky, that worked a charm for me. I also had an Arduboy shipped with Siren installed and couldn’t upload and couldn’t get the device into Flashlight mode. Uploading Blink after the reset worked great. My device now goes into flashlight mode and I can upload other sketches.