The Original Scheme from Dedek and Modified by ABE all Scheme are working 100 % and by special gsm is working too.
Modified by special@gsm, I had modified already before special published !
Yes Is verry wel working for all type Samsung even for Polyringtone T100 and N6xx
and don't forget put swich panel for external power and Internal ( from PC. pin 7 &4 RS232 )
sorry my bad english
