Maybe my question was not exact enough. I meant that an internet connection to Asus is not necessary. I was in a circle like with AX53U.
I set the PC to DHCP, Asus has the iP-Adresse at 192.168.50.x, got .1
I post some screenshots
Since I could not leave this circle, I connected an etherned cable to the wan port and now it was pretty easy. I allowed an Asus FW update.
Now we are going to flash openwrt-23_tuf-ax6000-initramfs.trx
Note the text at the bottom with "manual firmware update" and the link beside.
Now I had no idea how to reboot, but it worked to switch off the router.
I switched the PC to 192.168.1.99
$ ssh root@192.168.1.1
OpenWrt 23.05.2, r23630-842932a63d, 231213
Looks fine. Note: I am using Linux, with Windows you have to use an option with scp, which I don't remember.
$ scp asus-ax6000/openwrt-23.05.3-mediatek-filogic-asus_tuf-ax6000-squashfs-sysupgrade.bin root@192.168.1.1:/tmp
Don't forget to compare the checksums! Had it a few times, that they were not the same!
root@OpenWrt:~# sha256sum /tmp/openwrt-23.05.3-mediatek-filogic-asus_tuf-ax6000-
squashfs-sysupgrade.bin
60130651305de8ad4e241d998242c475a7b9e68503b90667b8b396126b0a55e2 /tmp/openwrt-23.05.3-mediatek-filogic-asus_tuf-ax6000-squashfs-sysupgrade.bin
root@OpenWrt:~# sysupgrade -n /tmp/openwrt-23.05.3-mediatek-filogic-asus_tuf-ax6
000-squashfs-sysupgrade.bin
verifying sysupgrade tar file integrity
Sun Apr 7 18:38:14 UTC 2024 upgrade: Commencing upgrade. Closing all shell sessions.
Command failed: Connection failed
root@OpenWrt:~# Connection to 192.168.1.1 closed by remote host.
Connection to 192.168.1.1 closed.
Looks fine now:
root@OpenWrt:~# ubus call system board
{
"kernel": "5.15.150",
"hostname": "OpenWrt",
"system": "ARMv8 Processor rev 4",
"model": "ASUS TUF-AX6000",
"board_name": "asus,tuf-ax6000",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "23.05.3",
"revision": "r23809-234f1a2efa",
"target": "mediatek/filogic",
"description": "OpenWrt 23.05.3 r23809-234f1a2efa"
}
}