Can't remember problems at that stage.
Perhaps your design of home menu changed and so menuhax won't work on the down-key.
Since I needed another way to start Homebrew anyway, I got a OoT cart prepared for 9.2.
Can you start Homebrew when you use an other way? Ninja, OoT,...?
If so, just reinstall menuhax and configure the Down key again if needed.
...menuhax method is just for convenience, I think.
You could also use any other method to start your Homebrew instead.