In a first time, you have to install the Liquid Metal drivers : http://global-downlo...p...&SC=EMEA_13
When it's done, download the Acer Download Tools for Liquid Metal : http://www.mediafire...3y884179jzfy9tj
Extract it where you want.
Now download the updated firmware. For now, we have only one bin (thx to moeaeon) :
Extract the .bin file from the zip in the Acer Download Tools folder. (we call it ADT too)
Launch ADT, and open the .bin file in the Merge OS File field.
Plug your phone to your computer, you should see a comport displayed, if yes, you can click Start. (Flash take around 8-10min)