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Sorry, I have made little progress with this problem. I'll try and explain where I am at.
If the basic display data is stored in the EPEROM , which I think that it is, it will virtually impossible to get a new EPROM unless Mitsi releases the source codes. If a newer version works with the older models then I could copy the PROM and email to anyone who is interested or snail mail the new PROM's. This would only cost about $25 but electrostatic precaustions would have to be followed in order to re-fit. At this time I do not have a version which works and I really don't know how the software operates. Remember that this problem is only with the models released in Japan and have been exported as used vechicles. As far as I am aware Mitsi has not released a version similiar to what we have for export. If anyone know of this and can explain how it works it would be helpful in solving this problem.
So far I have not had a positive response from Mitsi and the dealers I have spoken with don't know anything. If it is of some consolation there are similiar problems with other car companies dealing with the same issues. Most of them recomend replacing the entire unit with an aftermarket model. This is not so easy with the Mitsi's as their unit controls other functions like temperture, speaker balance, CD channels, etc . Sorry I can't be more helpful but it is always frustrating when working with propritity sofware.
Jim NZ
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