I used Acer Download tools to flash the bin file.
Everything seemed to go smoothly the point of "reboot"
The device seemed to enter Recovery mode ,, because I can feel three vibrations before it enters endless vibration loop.
The device kept vibrating ...
I tried to remove battery and put it back -- the same.
Without battery inserted, pluged in USB, the same.
Tried to clean ROM, no luck.
The device showed "SD Image download procedure ... Failed....."