Originally Posted by pawelsky
You should see the RX LED flashing (the frequency depends on what messages the GPS is configured to transmit and how often). Make sure you connect RX of GPS to TX of FTDI and vice versa.
Okay, i got it. These GPS modules have two pad to feed power. One is main and the other is back up. Both need to be connected to the 3.3v in order to work. now everything is working good.
Thanks again for your help.