Power down the router, insert your chosen network SIM card, and power it back on.
Enter your admin credentials. If you haven't changed them, check the sticker on the bottom of the router for the default username and password. zlt p28 router unlock firmware download
Never flash firmware over a Wi-Fi connection; a physical LAN cable ensures data stability. Power down the router, insert your chosen network
Most flashing tools for the ZLT P28 require a Windows environment. Power down the router
If available, click Browse , select the downloaded unlock firmware file, and click Upgrade .