OpenMoko FreeRunner “E13 020749”

I have the same charger from OpenMoko freerunner but I think it fails to charge my nokia n9

Does anyone has the pinout or how to unscrew it ?

Unitech Universal Cell Phone USB Car Charger (IC-USB)(e13) M404030

• http://forum.xda-developers.com/showthread.php?p=54285149
• http://unitech.ikiloop.com/?key=Unitech_Universal_Cell_Phone_USB_Car_Charger_IC_USB_e13_M404030_b4a347
• Description Input: 12V~24V; Output: 5V/1A Max. CE/E-mark/FCC/RoHS

• http://mobile-solutions24.blogspot.fr/2010/12/nokia-dku-2-ca-53-pop-port-pin-out-and.html# UsB NokiA CA-53