The Touch and Go system of my Toyota verso 2012(TR D-4D) UK was working perfectly fine with all the audio, mobile phone system and navigation system (though outdated maps). The other day I noticed while driving home, its display went blank. I suspected the fuse and it was blown ( 15 AMP RAD 1 , fuse in the engine compartment). After replacing the fuse, the next day, the Touch and Go system started to work. I noticed that the interface was a bit different but all other functions were normal except the satellite navigation system. When I press the navigation key it shows a message ' No system installed'. In the setup menu, I tried to find the system information but no such option was available. Previously I can remember that when I updated the maps I was able to find system information from the setup menu.
It was very weird to find that simply a blown fuse can cause such a software issue. Then I feel that I am missing some information to properly restart this system after a power outage.
I will appreciate if anyone here can help me out to get the sat nav working again.
Thanking you in advance