I had simular problems with the White version...
I solved it this way...
I soldered D0 & BT on the chip
conneted a Akira 2 to the Pinheader and held D0 to the chassi until the Evox logo appered then i removed the white chip from the ground (D0)
Removed the Akira and placed the Duo X2 White on pinheaders and make sure the red led was flashing...
Then i could flash it in Evox...