Pin | Signal | Description |
1 | USBPowDet | USB Power Detection |
2 | Fbus Tx | tx using fbus protocol |
3 | Fbus Rx | rx using fbus protocol |
4 | Rx2 | |
5 | Vpp | |
6 | MBus | mbus protocol |
7 | Gnd | |
A | Vbat+ | |
B | BSI | |
C | Gnd |
Physical connectors of Nokia E50 and Nokia 6233 are different.
Not sure about Nokia N91 (connector orientation may be wrong)