Hello bro 4Eva,
sorry for late reply. Now I'm trying to root it after I finished downloading download_not_stable.zip. And now, when I try to do shut down, then I press Down Volume + Power together, yes it pops out "acer" and some text on top right of the screen.
Erasing Cache before SD update..
SD update cmd:recovery
Booting recovery kernel image
...... But I already waited for so long and the screen didn't change to Android image like your video, am I doing wrong?
Let me know if you know this issue. Thanks a lot