This only works for signed, carrier-approved updates – not cross-flashing.
: Never turn off the router or unplug the cables during a flash, as this can permanently damage the hardware.
Click and wait for the process to complete, which may take up to 20 minutes. Troubleshooting
Most users seek out a firmware flash to bypass provider-specific limitations. Common reasons include:
Flashing the MC801A is not a simple "one-click" affair, and this is where the experience loses a star. Unlike consumer routers from ASUS or TP-Link, ZTE does not provide a user-friendly portal for flashing custom or updated firmware images.
There are generally two approaches to flashing a ZTE MC801A, depending on your device's current software lock level. Method 1: The Soft-Flashing Method (Web UI / ADB)
(Replace [filename].bin with your actual firmware file name).
Make sure you have the correct file for your hardware version (Check the sticker on the bottom: HW Ver: V1.0 or HW Ver: V2.0 ).
Another powerful tool is a JavaScript code snippet that can be run from your browser's developer console to gain additional administrative access. This script is essentially a "hack" that unlocks hidden menus and settings.
If you overwrite the security critical partitions ( modem_st1 , modem_st2 , and fsg ), you may wipe your router's unique identification numbers. Always look for firmware packages that protect or omit these critical blocks, or back up your QCN file before flashing. Conclusion
Different hardware revisions need different firmware.
As of now, there is no stable or official OpenWrt firmware available for the ZTE MC801A. There have been discussions in the OpenWrt forums about adding support for this device, but it remains an unsupported project. The main challenge is that the router's software is deeply integrated with the modem hardware, making it difficult to replace with a generic open-source system.
Open your flashing software and point it to the directory where your new firmware files (usually in .bin or .zip format) are located. You must match the COM port identified in your Windows Device Manager. 3. The Flash