Code
Here's a backup for AX51. They match the HD51 mutant. You just need to rename the files from mutant51 to ax51.
https://www.mediafire.com/file/4g5ibuuvkurd97p/openspa-8.3.002-mutant51-backup-20231021_1448_usb.zip/file
https://www.mediafire.com/file/z9ulmi7ti2njcfn/egami-10.4.r10-mutant51-backup-20231021_1350_usb.zip/file
https://www.mediafire.com/file/vf4av3x735kvnjt/openpli-9.0-mutant51-backup-20231027_1122_usb.zip/file