*please disconnect the stock screen before attempting any of these firmware updates* also, as Klipper evolves, some firmware bin files become unusable. I cannot emphasize enough how important it is to learn how to build your own bin files. I cannot always be a reliable source of bin files due to other obligations such as work, family and other projects. please refer to my YouTube channel if you are at a sticking point in your build http://www.youtube.com/@theferalengineer
TheFeralEngineer/Klipper-for-Elegoo-Neptune-series-3D-Printers
run Klipper on your neptune 2, 2s, 3, 3pro, etc!