LCD trouble (20x4)

@hamshi4 , your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advise on) your project :wink: See About the Installation & Troubleshooting category.

I'm probably not the one that can help.

There are some wires visible going to the right; what is connected? I suggest that you provide a schematic (photo of hand-drawn is fine) that shows all components and all power connections. It takes the guess work out.

Which exact Arduino are you using (I think it's a form of Nano). Which exact display are you using?