First thing first:
Get your CPUID before flashing anything (including official ROMs) !!!
I bricked mine, and unable to restore because I don't have the CPUID.
Currently my A100 is in the ACSC (Acer Customer Service Center).
Ouch!!! Any idea of how much it will cost to have them unbrick (restore) your tablet to working Tablet? I know some vendors have some system or another for replacing your broken or bricked unit so if anyone has any info on this please reply as I know that people have bricked their tablets and may have them sitting on a shelf somewhere. If this post if out of place my bad.
USE THESE FILES AT YOUR OWN RISK. I have NOT personally used all of them and am simply passing along links and a high speed ad-free server to files that I have acquired.
These files are already named "update.zip" and can be flashed by placing them on the Root of your SD Card. Once placed there hold the Tablet in Landscape position (Volume buttons on top left, home button middle right). Then press and hold the leftmost volume rocker and press and hold power. When the tablet starts up release the power button and continue to hold the leftmost volume rocker until the file begins to install. As always make sure you know what you are doing and why before flashing these. There are currently separate instructions in other threads.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?