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If changing custom settings, navigate to to verify your active baseline software build version number.
Use this method if the online check fails or if you have been provided a specific firmware file by your ISP or ZTE Support Download Firmware : Obtain the correct firmware file for the ZTE MF297D Update Software in ZTE MF297D
If an update is available, follow the on-screen prompts to download and install it. If changing custom settings, navigate to to verify
: To stay current automatically, you can toggle Enable Auto-check New Version and click Apply . Method 2: Manual Firmware Upload If changing custom settings