1- Download this tool: Acer A1 DL TOOL
and the drivers from Acer's support site , then install them;
2- Extract the zip file into Desktop
3- Move the .bin file in the ACER_A1_Bin subfolder placed into A1_DL_Tool_[Intra][Single]_v3.100_20091027 folder
4- Connect your phone (it must be turned ON) to your PC
5- Run the “ACER Download Tool [Single] executable (If you're using Vista/7 you must run it in compatibility mode,with administrator privileges)
6- Click the BROWSE button and search for the .bin file you previously put into ACER_A1_Bin folder
7- If you're not using .bin files provided by Acer, you may incurr in the INCORRECT MD5 alert. Just don't care about it and proceed to the following step.
8- Click START, and remember, DO NOT stop the flashing process, DO NOT unplug your device, or you'll have a very expensive and NOT WORKING piece of plastic and steel on your desk.
Hope this will be useful!
Edited by Dario93, 29 November 2010 - 01:19 PM.