RT6 firmware

[Paul-R]

When you replaced the SD card you will have removed the map and (if you use it) speedcam data. Maybe inputting this will unblock the situation. I will PM you a link for this as the next step to try.

The rest I am unsure of what to suggest. I do not know what data Mirascript downloads as its configuration backup. Maybe there's more in there than in the files you downloaded? Not much can be done now though. Another thought is that the internal hardware is starting to fail. Again not much you can personally do if that's the case but there are companies in Europe that can repair these units. I have already promised another member here that I will try to find the details of such places and will add you to the list.

Another thought. Maybe the USB socket and associated electronics is starting to fail and this is why you're getting the “MEDIA incomplete or damaged” message.

[Paul-R]

This post gives information about a company in Romania that repairs these units.
viewtopic.php?p=870835#p870835

EDIT

I have no personal recommendations but here are three results from a quick search of the internet.

https://www.lesevans.co.uk/
http://revivecaraudio.co.uk/read-more/
http://www.rwer.co.uk/services_carradiorepairs.htm