Comment by Ambroos
6 years ago
Similarly, my Belgian ISP (Telenet) has WiFi home gateways that are configured by their web portal, and config is pushed by the ISP.
I figured out that they only did validation on SSIDs client-side, so managed to get around that to put emoji's in my SSID.
Which then proceeded to soft-brick the entire thing on config push. I'd have to log in to the web portal via another connection, change the SSID there, and then reset the hardware with the reset button to get internet working again.
The stereo in my 2013 GTI crashed hilariously if you tried to pair a Bluetooth device with anything in the name outisde of [a-zA-Z0-9]. I wish I'd have messed around with it some more before I sold it (it was a silly car to own for how little I drive)