try this on the dcu cable

BLACK - GND ==> PIN # 10 (GND)
GREEN - TxD ==> PIN # 6 (RxD)
YELLOW- RxD ==> PIN # 7 (TxD)
And connect PIN #9 (VPPFLASH) and PIN # 11(DC+) together.

use cruiser cable driver and SEMC 8.4 (usbsmart free tool )