How to install 3.5 inch LCD screen driver on Lakka

Hi All,

I bought the 3.5 inch LCD screen and It’s working well on Raspbian.
I tried to install the driver on Lakka but It said “The system folder is ready only”
Is there anyone know how to install the driver on Lakka?
Please help me, I really love the Lakka GUI.

My setup:

Thanks.