Updated my semi stock sysmmc thinking it would only effect itself. Do I update everything else in order to fix it or is there something else?
i stupidly updated my semi stock firmware to 21.2.0 and now I receive "failed to match warmboot with fuses! if you continue, sleep won't work!" if I try to launch emummc or Android.
after some research I found I should just have to replace the contents of a folder called warmboot Mariko in the root to fix it, but it appears to require a specific file and I could only locate those for older versions.
further down in the same threads people mentioned just updating hats pack, atmosphere and the firmware to fix it.
the official tutorial from sthetix is simple enough, I just wanted to get some opinions on here before I try something like that, I don't care about having the latest firmware I just want to avoid having to reinstall all my games again.
it's a v2 with a modchip if that makes any difference.
thanks
Posted Feb 16, 2026, 8:38 PM UTC