I had trouble connecting to my Beaglebone Black Wireless, so I tried flashing it with the following image:
https://debian.beagleboard.org/images/bone-debian-8.4-lxqt-4gb-armhf-2016-05-13-4gb.img.xz.It connects fine now and I can use it again, but now it no longer has Wi-Fi functionality. I also had some difficulty flashing the latest images; the username:password was debian:temppwd and I couldn't access certain files. I read somewhere that the images themselves are "insecure", but I'm not sure what that means. How do I reset my BBBW to the way it was when I got it?