Thank you for the help. I've managed to SSH into Kindle over USB, but I still can't enable SSH over WiFi. I've changed the respective flag in the usbnet/etc/config, but the problem is that I cannot connect to the WiFi network. I use a router which uses WPA2-PSK security with cipher type set to AUTO(TKIP/AES). I tried to enter the pasword a number of times and tried to follow these instructions:
https://www.mobileread.com/forums/sho...4&postcount=3/. However, as I mentioned before, my screen is broken and I am not sure if I am doing everything alright. In the end I always hear the voice guide telling me that connection was unsuccessful.
Is there a way to connect to a WiFi network from the command line while ssh'd into Kindle over USB? This way I will at least be able to see what's happening.