Debrick GL MT300N V2 using uboot

Technical Support for Routers
1

I am trying to unbrick my GL MT300N-V2 using uboot following Debrick via Uboot - GL.iNet Docs 3

I had flashed an OPENWRT 18.06 snapshot and I am trying to revert to stock lede-mt300n-v2-2.27.bin. The new firmware seems to be running as a DHCP server is running and it responds to pings, but refuses connection with ssh or telnet.

  1. Power off MT300N-V2
  2. Connect ethernet cable from Windows10 PC to LAN port on MT300N-V2
  3. Set IP address of PC to 192.168.1.2
  4. Hold in reset button on MT300N-V2 and power up
  5. Hold button. Red LED flashes 4 times and then two green LED are on
  6. ping 192.168.1.1 and get response
  7. Connect to http://192.168.1.1/

I get a web page http://192.168.1.1/cgi-bin/luci saying

PAGE NOT FOUND
The page you were looking for doesn’t exist!
You can find more information about this project on GitHub

Is Uboot failsafe different for the MT300N-V2?

I know I broke it and I have to fix it. Time to connect a serial cable.

2

I have logged in to OPENWRT 18.06 snapshot using ssh.

Still interested in learning how to debrick this router.

3

If you can ssh in, it sounds simply as if luci is not running. Try to run /etc/init.d/lighttpd start and see if the GUI comes up then.

4

Luci is running. It isn’t included in openwrt HEAD snapshots so I hadn’t tried, but is included with the 18.06 snapshots. Openwrt/LEDE documentation is … fragmented.

That isn’t my question here. I am asking about the Uboot failsafe method. I am about to build my own kernels and would like to be able to recover from mistakes.

5

It causes by browser cache, you can cleanup your browser cache and try again.

6

Clearing the browser cache allowed me to upload firmware using uboot. Thank you.