Can't seem to upgrade from Firmware: 376.47 (Merlin build) to 380.66_4

[rktechnical]

I'm upgrading through the router's setup page. No error message. The upload completes, but once the page refreshes, it still shows that I'm using the older 376.47 firmware (merlin build). I even tried resetting to factory defaults.

I found this on the wiki:
"The RT-AC68U and RT-AC56U need to be at least on firmware 378.55 (or the last 378.xxx version from Asus) before you can flash 380.xx, due to the partition size change."

So I tried installing various 378.xxx files from Asus.com -- but no matter which one I select, I'm still stuck on 376.47.

 

[rktechnical]

Problem solved. I had to install 378.55 merlin build instead of something from Asus.com. That worked, then I was able to install latest merlin.

 

[Mark Infantino]

Thank God you figured this out. Your solution worked like a charm. Thanx again.