Fortunately I could drive two hours to get to my parents place where I knew that my mom still had an old computer with win xp. Finally it worked!!! Thanks a lot for the help.
The only thing with arduino flash is that the display works when I carry out the touch test and all the other screen tests but it does not start as in the beginning when I first started the RePhone…meaning I cannot carry out a phone call or getting in those menus anymore. What am I doing wrong?
Thanks.