Serial console

Serial Connector for WGT634U

Tools:

• Torxschraubendreher/screwdriver T 8
  
• Knipex, or any other wire cutting pliers
  
• Lötkolben/soldering iron
  
• Schrumpfschlauch/shrinkable tubing
  

www.reichelt.de:

• BL 1X10G 2,54 - 10pol. socket board (Buchsenleiste, gerade, RM 2,54) (you need only four pins -> Knipex, one side marked with soldering iron)
  

or maybe better
BL 1X20W 2,54 - 20pol. Buchsenleiste, gewinkelt, RM 2,54

• DATENKABEL S25 - für alle Siemens C/M/S 25/35/45 (contains level converter (Pegelwandler) (5V->3.3V))
  

You have to open the mobile phone side plug.
before:

after (red cable is not connected, colouring can differ):

remove the plug and remember the colour mapping. look here for details pin mapping (DATA OUT=TX, DATA IN=RX)
1 = GND, 5 = DATA OUT, 6 = DATA IN

solder the "Buchsenleiste" and use the shrinkable tubing

connect the cable to the wgt