SD card boot works fine

I feel a bit like a script oldie today

I've tried this so far
Getting custom boot files from Github as others have suggested

copying the .dat and .elf files to /boot

identifying the parition id using blikid
pi@rpi4-4:/ $ blkid /dev/sda2
/dev/sda2: LABEL="rootfs" UUID="80571af6-21c9-48a0-9df5-cffb60cf79af" TYPE="ext4" PARTUUID="eaffffff-02"

Changing cmdlines.txt
dwc_otg.fiq_fix_enable=2 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=PARTUUID=eaffffff-02 rootfstype=ext4 rootwait rootflags=noload net.ifnames=0

even tried changing the boot USB in /boot config.txt

Still hangs in various different places

I know first boot often takes a while.....ZZZZzzzzz