O-W (Panasonic, Samsung,...) cell phones and smartphones connectors pinouts  > Siemens pinouts
PinPin
Name
Description
1,2   connected in cable?
3 audio pair with pin 15
4 V+ charge 4,5,6 joined (checked)
9 RX Rx may be at pin 10
14 TX Tx may be at pin 15
15 audio pair with pin3
16,17,18 GND 16,17,18 connected (checked)

The charging pins are correct and checked, with a self made charger

18 pin unspecified cell phone proprietary of Siemens ST55 cell phone connector layout
18 pin unspecified cell phone proprietary connector
at the mobile phone
According to 3 reports in our database (1 positive and 0 negative) this pinout should be correct.

Is this pinout
Siemens ST55 cell phone visual pinout:
Siemens ST55 cell phone diagram
click to enlarge
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