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Ok...Now use optiflash last version 2.0.0b here
And see this thread how to use it..
...........
1-Use "Fix Bad Sector "Sectors Recovery" and flash your bootloader, maybe your box have some bad sectors.
2-Use "Null modem cable with Network lan" to flash any Ferrari image for DM500hd you can find many of images from Ferrari forum "Google it under OEM made in china".
3- If not successful use "Null modem cable only without Network lan" and flash image..
Do it and let us know..
P.s: Last bootloader for DM500HD Ferrari in attach
And see this thread how to use it..
...........
1-Use "Fix Bad Sector "Sectors Recovery" and flash your bootloader, maybe your box have some bad sectors.
2-Use "Null modem cable with Network lan" to flash any Ferrari image for DM500hd you can find many of images from Ferrari forum "Google it under OEM made in china".
3- If not successful use "Null modem cable only without Network lan" and flash image..
Do it and let us know..
P.s: Last bootloader for DM500HD Ferrari in attach