This method is used when you have downloaded a specific firmware file (often with a .uImage extension) from the ZTE Support Portal or a provided manufacturer link.

using two primary methods: the automatic online check or a manual offline upload.

Before you begin, ensure you have the following to prevent "bricking" (permanently disabling) your router:

: Look for the Firmware Update or Management option on the left-side menu.

: Click Choose File and select the firmware update file you previously saved to your computer.

: Go to the System Settings or Maintenance tab in the top navigation bar.

: Click Apply or Upload . A confirmation box may appear; click OK . The process usually takes about 2 minutes . Do NOT turn off the router until it reboots completely. Method 2: Automatic Online Update