An copy op the Duo2 nand chip and some info about this can be download here from my website,

And no, I can only give a full copy (clone) file of my nand flash chip because it is not possible to only flash the nand chip with a cfe file when there is no I2c/Jtag software for this box.
Nevertheless, after successful programming a nand flash chip with these file(s) you should be able to flash the box on the regular way.
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Doing nothing leads to nothing.

------------- Please note, for technical support -------------
Will be given here, or on the jb8a8f8 forum and I prefer it in English.
Johnny B.

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