The site gawisp.com/perry/edge seems to be dead...
I would like to revert to fw 11.20 because of poor battery life... Somebody have the original file ?
Yes i managed to figure it out thanks to google translate and the file provided by Nicolas, seems to be better at keeping a charge now, but i am going to let it drain completely and then recharge it over night and then do a factory reset just to make sure it has every chance to be calibrated.
I will keep this revision in my backup folder aswell, good to have a version people seem to be happy with just in case. :)