I tested the following update paths and they were sucessfull for me:
- Netgear V1.0.1.5 EU > Web GUI > Firmware Update > OpenWrt factory image (*.img)
- Netgear V1.0.4.0 EU > Web GUI > Firmware Update > OpenWrt factory image (*.img)
- OpenWrt > LuCI GUI > Flash new firmware image > OpenWrt sysupgrade image (*.bin)
- UBoot > System Load Linux to SDRAM Via TFTP > OpenWrt recovery image (*.itb)
- OpenWrt recovery image > LuCI GUI > Flash new firmware image > OpenWrt sysupgrade image (*.bin)
For the OpenWrt sysupgrades I did not keep the settings.
It seems a local, not commited change f-ed my sysupdate image. There was a small error in the device tree which I did correct and push.
Random info:
On my router the factory backup image is V1.0.1.5 EU. If I mess up something and want to restore the Netgear factory backup image the following works:
- connect to serial console of WAX206
- interrupt boot to stay in the boot menu
- choose
U-Boot console
- in the prompt enter
bootm
and hit return
It seems that since there's no kernel loaded at this time the factory backup is then restored automatically.