Ever wonder how people hack those electronic road signs to display messages such as, “Zombies, Run!”? Well, it’s easier than you think, if you have easy access to the physical sign. Let’s just say that some things are better left unlocked, and it includes the access panel. Continue reading to see why.

First, we must state that these signs should never be tampered with. Now with that said, the access panel on the sign is generally protected by a small lock, but often are left unprotected. Upon opening the access panel you can see the display electronics.

The black control pad is attached by a curly cord, with a keyboard on the face. Programming is as simple as scrolling down the menu selection to “Instant Text”. Type whatever you want to display, Hit Enter to submit. You can now either throw it up on the sign by selecting “Run w/out save” or you can add more pages to it by selecting “Add page”