I have updated my LX90 8" Audiostar firmware to A4S4 just to be up-to-date but now I am having a problem with GPS function. GPS does not appear in the Audiostar Utilities menu and I do not see "GPS fix" when I switch it on. Utilities start with "Timer" and end with "Park Scope".I have to enter the date, time and daylight saving manually every time. Two star alignment and other functions work fine.
Any ideas about how to fix the GPS? Is here a way to upload the previous firmware?