Brand new AR7550s only showing LuCI

Hey folks,
I have a brand-new AR750s, right out of the box. When I visit I can only access the LuCI interface. In fact, any password including gibberish works. I tried resetting it with the side button. How can I get the default Gl-Inet interface?

I think you used openwrt before and the browser is cache. So do any of the following

  1. Clear your browser cache
  2. Use a private tab
  3. Use a new browser
  4. Type url manually to