He applied the settings.
In the section, select the "Local Update" option. Select the downloaded file and initiate the update. Critical Information: Risks of Updating
: Patches vulnerabilities that protect against remote attacks and unauthorized device access.
If the OTA update fails, you may need to obtain the firmware file directly from your service provider or ZTE Support . Download the .bin firmware file.
Almost immediately, the fan on the MU5001 spun up. On the OLED screen, the signal bars jumped from two to four. The frequency indicator switched from 'LTE' to the bold, glorious '5G'.
Insert a SIM card with a strong, stable 5G/4G connection, or perform the OTA update while connected to the WebUI using a wired USB-C connection to your computer instead of Wi-Fi. 2. Device Stuck in a Boot Loop (Bricked)
Early MU5001 firmware versions suffered from frequent disconnects in areas with marginal 5G coverage. Updates refine the modem’s ability to switch between 5G, 4G+, and 4G without dropping the connection.
If your firmware update fails or encounters errors, use these troubleshooting steps to resolve the issue. 1. Update Fails Midway or "Network Error" Displays
: Ensure the device does not lose power during the update, as this can "brick" the device.
Branded firmware can also be restrictive. One user with a German Telekom device noted that a "restricted firmware" was installed that did not include the "hidden menus" found on an unlocked, global version of the device. Attempting to install a global or unlocked firmware on a branded device is a risky and often incompatible process, with community discussion labeling it "probably incompatible".