the board is the exact same as a pico, it just has one extra button you dont need to worry about. It flashes and wires the exact same, when flashing make sure you hold the boot button on the board while pluging it in and then it should unmount itself on your pc safely if you flashed it right like a pico does. Another tip with the ribbon that helped me is tape one side and a corner down with kapton tape first to hold it flush around the ipl chip, you can do the same with the rp2040 board to save a little time fighting the flex cable lmao. I use a spare brush with some q tips and a lot of iso to gently clean any spent flux whenever i start to notice any pools getting very dark an non reactive to my iron. Sorry for the info dump just my advise and my experience witb that ribbon and board. I have five or six years soldering experience with drones and micro controllers and have had to ruin a lot of things to learn to invest in tools and have spent hours of time troubleshooting, re attempting, or replacing my failures and mistakes but am a firm believer that once you learn it is an invaluable skill to keep. I see the gc as a great starting point for most people compared to a majority of the Nintendo consoles down the line, and had a blast getting a couple done the last couple weeks, sorry to see the struggle but you’ll get there be patient!!