Updated hybrid instructions are available (both documents). Download them from the same location. You shouldn’t need to unlock them again. The changes are mostly to better explain how to use the encrypted connection.
Also I’ve managed to get 4G reception working with an antenna, but still a significant distance from where I need it working. So I’ve ordered a bigger antenna. Considering the difference the antenna makes, if you currently have bad reception in the casino, a bit of additional equipment can make a very worthwhile difference. I’m still exploring options for a better connection.