I hard-bricked my 101C Copper (ac101ccv) but found two working solutions:

1) Not original ROM but 100% compatible

a) Download http://www.needrom.com/download/bitmore-mobitab10c-3g/;
b) Open scatter file as usual;
c) Replace preloader with the preloader of this ROM http://www.needrom.com/download/archos-101b-xenon-v2/;
d) Select Format All + Download; push Download; connect USB.

2) Original ROM

a) Open Chrome Browser;
b) Go to Settings>Extensions>Get more extensions>search and install Tampermonkey;
c) Install this script:
https://greasyfork.org/en/scripts/73...by-ted423/code
d) Download this file with JDownloader:
http://www.pan115.com/file/6nPK09c
e) Flash with preloader from archos-101b-xenon-v2 above.