i'm having same issues, wifi deactivated and bluetooth wont turn on, the wlan0 interface wont show up, so ifconfig wlan0 down or up commands wont work, I just installed nitdroid via the cellular interface and now, from android, everything is working, the wifi and bluetooth, so this is a software problem definitely, i will try to make a hard reset to see if everything goes well

it is working again! I just uninstalled advanced interface switcher, restarted and there it was, the wireless connection was back