TOPIC:

 Hello! I ve made a mistake. I ve downgraded my rlink2 from 7.0. to 3.3 and now my reverse camera is not working at all, parking sensors are wothout sound and not appear on the display, temperature is shown in F beside C, can t turn off navigation from button. I ve tried all versions of firmware but always got " It is not possible to install a former software version, current software version is kept “. Can anyone give me an advice? Thanks!