How to Change Wi-Fi Details on a Headless Raspberry Pi When You Don’t Know the Current Network

If you’ve ever worked with a headless Raspberry Pi, you’ve probably faced this problem: The Raspberry Pi was previously connected to a Wi-Fi network You do not know which network it is connected to You cannot connect a monitor, keyboard, or mouse SSH is your only option The Pi is no longer appearing on your current network This usually happens when: You move to a new location Your Wi-Fi name/password changes Someone else configured the Pi You forgot the old network credentials In this guide, I’l