Sorry, I still don’t understand. When you delete a device from an account it wipes/reformats the complete data partition thereby totally resetting everything previously downloaded/assigned to a device. The only part that isn’t touched is the OS files and the
/config directory. What you get is exactly the same as when you setup a new device by unzipping install.zip and then adding the
/config directory. The only difference is that during the initial setup, the device will repartition the SD card, but that step doesn’t have any effect on anything that follows.
There’s no such thing as resetting WiFi settings: They either exist in
/config/wpa.conf or not. There is no hidden/resettable networking state besides those two files. If the settings work, the device has network. If they don’t and you have
/config/wifi_ui set, the device will start its adhoc configuration WiFi network after ~60 seconds and show this screen…
…for the first 10 minutes, provided that you don’t have your own
/config/branding.jpg/mp4. If you have your own branding, that text is only shown at the bottom text row.
I feel like we’re going in circles getting nowhere as I think I still don’t fully understand the events that do happen or should happen. I just configured my own Pi with WiFi settings that don’t work, enabled
wifi_ui and then deleted the device from my account and I get the text from the image above after the reboot that follows the device deletion.