When using manjaro, it is suggested to have at least 2 kernels installed to switch, when trouble arises 
When installing on a system where you have no internet without wifi, it is best to not choose a minimal iso.
If you have wired internet, there is no need for a live-manjaro
Then you could add a kernel with mhwd-kernel
A search “9260” in the forum would have led you to:
There it is suggested to install newest kernel 5.16