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ORIGINAL: Otaku
Heh..
I _believe_ it should be ok... I'll see if there is a fairly low level way of backing up an existing working system before we try screwing around with it .. 
atb.
O.
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Well I took the plunge and started screwing around with it
Here's my results.
I downloaded the modified image you created for the dvd-in-motion hack and pulled the hard drive from the MMCS and updated the loading.kwi file with yours and put the drive back in.
When I turned the ignition key on, the MMCS booted as usual. Turns out you have to disconnect power from the MMCS for a few minutes to get it to do a "Cold" boot. I assume a cold boot is the only time the bootloader code is invoked.
Anyway, the bootloader came up with the message "Program version-up in progress." with a progress bar that filled up within about a second. Once the progress bar filled up, the screen went blank and nothing would happen. Sigh
Each time I turned the ignition key off and on, it'd just do the same thing.
Since I figured this modified firmware wasn't going to work, I decided to do some experimenting with the bootloader.
I removed the hard drive from the unit and turned the key back on. I got a message "Insert a program disk."
I already had a CD burned with the mitsubishi's original "loading.kwi" file on it, so I stuck it in the drive and got a message "Now checking the disk." After a few moments, it came back with this message "Program writing error. Turn the engine key off to retry." Oh well.
After that, I put the original loading.kwi back onto the hard drive, it did the 'program update' just as it had been before, then immediately after got a message "Checking screen data.", then shortly after a message "Screen data check has been completed. Restarting"
And all was back to normal.
Sounds to me like we are _extremely_ close to being able to modify the OS on this thing! Stay tuned!
RE: How to unlock MMCS
