Hacking Menuhack freeze when rebooting

[Yamigishi]

Hi,
So, first things first, I apologize if I make somes english mistakes.
So, I recently bought a New 3DS. This 3DS was in 11.0.0-33E. So, I wanted to use the browserhax/menuhax to basically be able to downgrade it, using this video :
And, the thing is, each time I reboot my 3DS with L down, after installing the menuhax, I don't have the menuhax that opens, but instead, the normal menu, and it freezes instantly. I can still power off the console, and deleting everything on the SD card makes the system boot again.
So, I tried to use this link https://db.tt/KOHeDJ1I to download the hack, instead of using the link in the description of the video, but same thing happened again.
So, what did I do wrong?
And, I don't know if it's related, but I use my phone to write on my SD card, since I can't connect it directly to my computer (I don't have any adaptator), I just plug it in my phone, write the data on it, and put it in the 3DS. And it's a 64GO SD card, so I don't think that's a size related problem.

 

[KunoichiZ]

I don't know how to fix your menuhax freezing but I do know that you can't downgrade your 11.0 3DS with just menuhax. You need to get either a hardmod or find someone else with a 3DS with custom firmware in order to downgrade your 11.0 system.