Bosch Active Line Plus - Removing speed restriction

hi

i was wondering if anyone here has any experience on removing the speed restrictions on the Bosch Active Line plus.

i used the ASA ESpeed one which seemed to work well but i am suspecting its not 100% compatable as i am getting some oddities on the display screen , firstly speed being 4-5kph out, and the range being completely wrong.

thanks in advance,