Sofia from Dingoo has released the A320 Recovery Tool for anyone who has managed to brick their machine whilst messing around with it.
The Software including english instructions can be found [http://www.mediafire.com/?dtjzcuj1zyy]HERE[/url]
Thanks again to A600 for the heads up and linky.
Full package contains English Instructions, USB Drivers, Recovery Tool and latest firmware.
This should only be used as a last resort and if nothing else is working (non boot/non reset)
After recovering you will need to go to the Dingoo website and get all the software and emus again, remember to switch to the Chinese language site as the download links on the English Site dont work.