So it seems like the site has gone down and you can't get the original files anymore, so I'm uploading my copies to mega. For use with the r4isdhc.com.cn 2024 cards
Standard r4 wood firmware.
https://mega.nz/file/TRUE1AZD#KkscHsoc8CdCuZz2Y-FAhErZTqKN5FpdFk2d9t6T9FM
R4 wood multifunction...