I'm trying to set up a R4i SDHC, but every firmware I've tried has been stuck on the loading screen. I want to get YSmenu but none of the download links work, I think all those sites have long been shut down. Any ideas?
What is the website that is written on the front of your cart?
Also, format your µSD with the Panasonic SD Formatter, not Windows.
ALWAYS BACKUP your µSD to a backup folder on your PC BEFORE formatting!!!
Format your µSD with the Panasonic SDFormatter
Use these options to format : FORMAT TYPE : FULL (OverWrite). FORMAT SIZE ADJUSTMENT : ON
Do you have another µSD to try also?
Here is the correct kernel for your cart : http://www.r4i-sdhc.com/R4i-3DS V1.83b English.zip