Wait for the progress bar to reach 100%. The device will reboot into the new firmware environment. Troubleshooting Common Firmware Issues Update Fails at 50% or Disconnects
If your unit lacks a microSD slot, you can sometimes flash via the USB-C port using ZTE’s proprietary SaraTool (only available to service centers). In that case, contact ZTE support for guidance.
"Download initiated," Elias muttered, watching the progress bar. The file size was modest, but the stakes felt high. Flashing third-party or mismatched firmware to a carrier-locked device was a good way to turn a $300 router into a plastic brick. Zte Mu5001 Firmware
The MU5001's firmware appears to be based on the open-source OpenWRT platform, a common choice for routers due to its flexibility.
I can provide targeted troubleshooting steps for your exact situation. Share public link Wait for the progress bar to reach 100%
If your device is functioning correctly, it is highly recommended to disable automatic updates
For a standard OTA update, you would navigate to your router's administration page (typically at 192.168.0.1 or as indicated on its label) and look for the "System Update" or similar option within the Settings menu. The device will then connect to ZTE's update servers to check for and download any available firmware. For this to work, the router must have a working internet connection. In that case, contact ZTE support for guidance
Instead of downgrading, report bugs to ZTE support and wait for a fixed release. Downgrading can permanently brick the modem partition.
Updates resolve bugs that cause random disconnections or SIM card read errors.