Before you begin the process, take these precautionary steps to ensure a smooth experience:
Follow these instructions to manually update your ZLT P21 firmware: Connect your computer or smartphone to the ZLT P21 network. zlt p21 firmware update install
: Verify that your device is exactly a ZLT P21. Using firmware designed for a different model can permanently damage your router. Before you begin the process, take these precautionary
: While Wi-Fi can be used, using a wired Ethernet connection to your computer is highly recommended for a safer and faster procedure. Step-by-Step Installation Guide Before you begin the process
Log in with your admin username and password. These are typically found on a sticker underneath the router. How to Update Your Router's Firmware