How to make cable for Nokia 7650
You need a rj45 with
8 pins connected
8210 datacable
3210 lead connector
pin out fla 32
counting left to right
bat1+/bat2/bat3/tx/rx/mbus/vpp/ground
THE PIN-OUTS:

opened from bottom up
vpp/mbus/rx/tx/ground/
for batt you can use pinout like 8310
or actualy use 8310 cable just solder 3210 cable to it.
Opening the phone:
look at picture you need
2 small screwdrivers
pusch them toward the battery untill you see the cover lift it self
then pusch the cover back
BUT!!!!!!!1 also slide it max 1 inch to the back otherwise you can damage
the flex cable
and here you see my cable
Sandor