If you want to change advanced settings (VLAN, bridge mode, TR-069), you need the super user. The standard "user/user" only gives you basic Wi-Fi changes.
As they dug deeper, they realized that the ZTE F660 and F663 are powerful devices that offer advanced features, such as: password zte f663nv3a exclusive
: If you're trying to reset your device, most ZTE devices can be reset by pressing a combination of buttons. For the F663NV3A, you might need to try: If you want to change advanced settings (VLAN,
Here's a feature of the ZTE F663NV3A: