With the device powered on, use a pin to depress the Reset button for 15–20 seconds. This restores all settings, including the Wi-Fi password, to the values printed on the router's sticker.
If you want to bypass the ZTE F670’s Wi-Fi and use a high-end router: zte f670 manual
If you forget your custom password or mess up settings, a factory reset wipes everything and returns the ZTE F670 to its out-of-box state. With the device powered on, use a pin
lights should be steady (green) once the connection is synchronized with your ISP. 2. Accessing the Admin Panel With the device powered on
The deep irony is that the official, comprehensive manual for the ZTE F670 is either non-existent, deliberately obfuscated, or deeply disappointing. A typical search yields: