My Spitz AX just stopped responding today. I tried power cycling, reset button, holding the reset button, etc.
Resorted to try to reinstall via U-Boot. I can get into the upload page, and uploaded firmware (confirmed the hashes match, both from Website -> PC, and PC -> router). I tried 4.4.9, and 4.3.0. Both had the same result. Flashes "succeed", a bunch of lights flash a few times, then it goes dark, comes back online, flashes WiFi2.4Ghz twice, the just remains with only the power LED lit.
Router had been working great for over the past year until this point.
Edit: I flashed OpenWRT and it "just worked", and booted right up. I tried to flash back to 4.3.0 as per How-To: Installing Vanilla OpenWRT on GL X3000 and it did the same thing. two-2.4GHZ blinks, and then solid power and nothing else.