The ZIP file linked in this post contains basic homebrew files for hard modded Xbox 360 consoles. (JTAG, RGH, R-JTAG, etc)
I am not certain with the functionality of these applications with "Bad Update" or the forks of "Bad Update."
This package contains the following
xexmenu
dashlaunch 3.21
simple360nandflasher
auroradash
xm360
https://www.dropbox.com/scl/fi/bpj1x6x3 ... zkgzi&dl=0