This feature allows users to manually select and "lock" the modem to specific 4G/LTE frequency bands (e.g., Band 1, 3, 5, 7, 8, 20, 28, 38, or 40) rather than letting the device choose automatically.

Practical steps — Preparation (6 points) List, in order, the essential preparatory steps to perform before flashing MF79U firmware (include three items). Provide exact brief commands or actions where relevant (e.g., how to backup settings or confirm current firmware version).

If doing it manually, you may need to use an explicit URL command in your browser while logged into the WebUI (e.g., http://192.168.0 ) or use a terminal software like Putty/DC-Unlocker to send AT commands (like AT+ZCDRUN=8 ). Step 3: Run the Flashing Software Extract your downloaded firmware package.

Click on . If an update is available, follow the on-screen prompts to download and install it.

Once the tool displays a green "Success" or "Passed" message, the device will reboot automatically. Understanding the WebUI (Dashboard)

Are you trying to or unlock the modem for a new SIM card? What error messages are you seeing, if any? Share public link

If the update fails via the dashboard or if you are flashing a generic firmware, you may need a specialized tool like or DL Tool .

: The ZTE MF79U may not support certain 4G frequency bands (e.g., FDD 700 and TDD 2600 MHz) used by some carriers [15†L25-L26]. If you encounter this, try a SIM card from a different network. If the problem persists, resetting the device or contacting the seller may help [15†L25-L26].

Before updating, it is crucial to know your current version. Connect your Go to product viewer dialog for this item. to your computer.

Connect the ZTE MF79U to your computer's USB port or a USB power adapter.