How to connect to tha nano by used the router

How to enter the nano via the router and how to back the original program to tp_link tl-wr941nd
I mean, I want to open the nano station by way of the guides in the router in the original program, I used to enter the nano using IP static and enter the nano via the mobile

@Muthanaeng, welcome to the community!

Not sure what this means. Do you wish to install nano?

vi is installed by default.

https://openwrt.org/toh/tp-link/tl-wr941nd#revert_to_original_firmware