Hardware unlock (N0110)
Requiered reading
The hardware unlock way require special tools.
The goal is to force recovery mode to allow installation, your calculator should show a black screen and a red LED.
Select a method
There are multiple methods.
We recommend this post, it is very complete and will guide you very well.
If you have another way to get Recovery mode, you can follow it instead. We are not responsible for anything that goes wrong with your device