press the reboot button on ur browser.
re upload the file then.

same problem here, everything is fine now

If you entered the MAC address without the ":", then there's a high chance your router might be bricked.

I suggest you try getting into Emergency Upgrade page again by doing the resetting procedure.
Maybe you can try this:

1. Make sure your router is on.
2. Pull the adapter cable off.  (Don't turn off at the power switch), just pull it off.
3. Make sure your network adapter setting IP is correct.  Ie. IP address 192.168.1.5, subnet mask 255.255.255.0, gateway 192.168.1.1

4. Start command prompt. Then type:

ping -t 192.168.1.1

5. Then poke the reset button on the huawei router.

6. Plug the cable back in.

7.  Hold the reset button until you see a reply from the ping at command prompt.

8. If you see a reply, then open up Microsoft Edge (if you're using windows 10), and type at the address bar 192.168.1.1
Keep trying this process.

Good luck.