2004 LCD...

I bought a 2004 lcd so I could have an SD card slot for laser engraving since it is supposed to much smoother as apposed to send via USB.

I am using the B16_32-LCD-112515 firmware. Can I just plug in the LCD and I am good to go?

That firmware is for the lcd in the shop. If you have the other lcd you will need to do a minor firmware edit.

I do not have this screen Big LCD

Can you point me in the right direction for the edit.

open the firmware it is all well commented, in config.h at the bottom of that tab

great thanks