hi dzo, thanks for your prompt response. I can't use the "test mode file" it "displyed "test mode fail, turn off acc" however pressing Navi and left right X3 got me into a test mode menu with 41 directories/modes - some in Japanese.
jpg of all the directories attached.
I panicked when I realised there is no escape/reset key to get to the main menu.! I turned of the power to reset. phew. Please advise if that was the correct procedure.
Once again thanks, I look forward to further instructions as to which directory to back up and how to proceed.
Item 9 on the first page is the file manager. This should let you copy and paste the language files to an sd card. It should be very silimar to this:
There is a chance that copy and paste doesn't work without the correct testmode key.