Hi All,
Well, I took the plunge, and everything went smoothly !!
I now have the correct time on the head unit, and the analogue clock is also displaying correctly.
Although the clock face differs from the original, I assume this was changed in one of the later updates.
I now have a happy wife whose car is back to normal ( A big bonus! )
The only difference I came across was that my 5F settings were Bit 17 was 00 and Bit 18 was 06
Should I now leave these at 00 , 00 or try changing back and see what happens?
Must say a big thank you to all you guys for your expert advice and hard work.
I found the video very helpful to watch as I went through the process.
Cheers Guys.