If you have an unlocked or retail version, you will need to download the .bin or .img firmware file.
Once you have the correct file on your computer, follow these steps: Zte Zxhn F670l Firmware Update
After an update, it is often helpful to perform a hard factory reset (holding the reset pin for 10 seconds) to ensure the new software runs on a clean slate. Final Thoughts If you have an unlocked or retail version,
Log in with your credentials. (Default is usually admin/admin or found on the sticker at the back of the device). Navigate to > Device Information . (Default is usually admin/admin or found on the
WiFi Stability: Fixes for signal dropping or interference on the 2.4GHz and 5GHz bands.
Click "Browse" and select the firmware file you downloaded. Upgrade: Click "Upgrade."
Running outdated firmware can lead to several performance issues. Regular updates provide: