Ok i've tested it and the connections gives 3.3 or 5V depending the position.
Might it be a baud rate issue? because it seems that ftdi is more likely to run with 9600 instead of 57600, but i've tried to change it in the configuration pannel of COM ports and still doesn't work...
I know have the following message :
Using Port : COM5
Using Programmer : arduino
Overriding Baud Rate : 57600
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xdd
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xdd
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x77
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xf7
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xdd
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x77
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xf7
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x77
avrdude done. Thank you.