@alzhao

Very strange things.

I do not touch router for one week.

I boot to router and it have firmwares 2.? !! Why can this happen? I do not upload old firmwares.

I download new firmwares from GL.iNet download center.

I upload the tar file. It tell me not valid. Why is this? In past, I was flashing .tar.

Now I try .img. Accepts file but it tell me that file is too big (15.75) becuase only available 15.63.

So many strange things. Please help me understand. I never having problems before recent when I want upgrade 3.105.