I followed this guide to update A9LH to v2 on my O3DS: https://github.com/Plailect/Guide/wiki/Updating-arm9loaderhax Everything seemingly went well. The installation succeeded. Now the 3DS won't boot. Blue light is coming on, but that's it. I can't load any payloads. This may be related, but I had a custom animation chainloading upon boot prior to this. edit: nevermind! The chainloader was the problem. How embarrassing!