Im wondering if a squashfs sysupgrade completly updates the openwrt image on the board as in my case it seems not to.
I built an image flashed it to my board and everything seemed to work i then built a new image with a later snapshot and installed it.
the newer image wifi would not work i borked my wifi firmware with incorect edits for my target so I decided to install my original image.
on reinstalling the original image via sysupgrade the wifi was still broken, I tried multiple times deleting the config etc... and the wifi was stil broken.
In the end I had to flash via uboot the original factory image I built with my first image from uboot after erasing the nand.
I'm just supprised installing the original working image did not restore my device to a working state, is this expected / normal ?
It definatly flashed and rebooted so I'm stumped.