If your MBZ3 model has a removable back cover, slide it off. Remove the battery carefully. The manufacturing sticker containing the login password and default IP address is often placed inside the battery bay to protect it from wear and tear. Check the Screen Display
Most routers or IoT devices with this naming convention have a sticker on the bottom or back . Look for fields labeled WPA Key , WiFi Key , Passphrase , or Security Key . mbz3 wifi password top