Is there a way from C675B820 (Indian) to C432B820 (European)?

I have a European Honor 6 on which I installed C675B820 from here.

Is there a way to go back to C432B820? Every rollback-package I tried stopped at 5 or 36 % with "software install failed".
I need help.

Attached Thumbnails

 

from xda-developers http://ift.tt/296CTxr
via IFTTT