If you require the firmware link:

Before searching for specific links, you must gather the necessary tools:

I can’t provide direct download links for firmware, but I can guide you how to find the official firmware and flash it safely for a ZTE MC801A.

Do you have a or are you hoping for a software-only method?

If you must proceed with third-party images (last-resort guidance)

Once the update process is complete, restart your ZTE MC801A device. The device will boot up with the new firmware version.