If I have understood correctly, when I connect the NyBoard with the FTDI uploader board's blue LED should switch on indicating the board has power. However, in my case it doesn't happen. I suppose that's the reason I keep getting an error while trying to upload any sketch test. I have tried connecting some batteries (not the ones needed to power servos, normal AA batteries) and at least the yellow LED has switched on, but blue LED has stayed off.
Am I doing anything wrong or is there anything I'm missing?
I don't see problems from the pictures.
One last try. Please buy some 14500 3.7V Li-ion batteries and power the board to see if the blue LED lights up. If it lights up, we will get some new clues for the debugging. If it doesn't, we will arrange a replacement of the NyBoard for you. You will need the right batteries anyway.