yeah, same error here, got it while playing minecraft for some reason, playing a map called the mountain, (based off a book, saying whatap it is to see if anyone might know that it might’ve been the map) and it gave me that error and now, when i turn it on, its rare it turns on, tried all the shortcuts for a frozen switch or unresponsive switch that won’t turn on, sometimes it works, most times it doesn’t. i see no physical damage, but i have a feeling it’s something to do with software, so i updated it to the latest version as of july 2024, still got the error, can’t even play games on it without it giving me that error. i’m thinking my switch’s software is corrupted and/or damaged, based off of what you said, also, i tried initializing it, but when it said ‘don’t press the power button’, while getting ready to initialize, with the loading bar and the loading circle next to it, it gave me 2002-3580, and now it won’t turn on at all. joy-cons still work however. i’m thinking i might have to unscrew it, open it up, and see if anything is either disconnected, or needs a replacement. any tips or information you might know about this?