hello!
best way to find pinout if you dont have Pinfinder is to measure voltages on powered On phone.
1. set multimeter to voltage measuring.
2. power Onphone
3. set one multimeter probe to some grounded phone part
(if you cant find grounded part outside phone- you need to take out small thin wire from negative battery terminal)
4. with second probe touch one by one all phone pins (phone must be powered On)
(to get better result i would advice to set needle on the end of second probe)
memorise pins with voltage between 2,7-2,9volts.
those are tx/rx
after this is done you can proceed to cable assembling.
here is good step-by-step tutorial:
http://forum.gsmhosting.com/vbb/f296...-cable-386780/