Total first timer here trying to get my pi 3 configured for my daughter. Our home network SSID is not broadcast meaning it doesn't appear in a list of available networks, you have to know the name. We successfully installed NOOBS and connected to network via Ethernet and it worked great. We started playing with the GPIO and accidentally shorted the 3.3V power on the breadboard. The pi restarted itself but we aren't connected to the Internet anymore. Figured I'd connect to wifi but I don't see a way to connect to a "hidden" SSID.
Any advice? Also need to know how to activate sound. I tried connecting the audio output to a speaker but no sound.