Here are some photos include the method I used to modify the cable , I used Samsung e700 cable .
Took LC12 connector and soldered 2,3,4 and 9 pin – I cast on the connector some hot glue to hardened it , then I connected the to some kind of array that gave me some simplicity to connect the other end of cable (e700 cable).
Again the pinout for reading the flash file is :
Rx – 3
Tx – 4
GND – 9
For flashing the phone just add the vcc + to pin 2 of the phone , vcc is the the red wire from the USB cable .