Default [Q] Hauligian Head Unit

I currently have a Hauligian (or Hauligan) headunit in my car running Windows CE6. There are a few discrepancies for example the days are spelt wrong and have capitals in the wrong place.

I've seen a few threads regarding downloading Total commander and running it through the GPS micro SD slot and pointing the path to run it. Thats fine (I haven't done this but understand it).

I was thinking of taking the files off the Headunit, finding the files and changing the days to the correct spelling (is this possible?)

That is my main issue. Side issues if plausible:

Update the software
Update the sygic maps.

I would be grateful for any help, ive been looking and searching for a while.

Many Thanks Andy