I just bought the 3DR 433Mhz radio telemetry kit from DIYDrones..
The two boards of the 433Mhz looks same. After I received the kit I soldered the header pins to the boards and connected to the FTDI cable.
Now one board connects fine to the configuration tool and I am able to LOAD SETTINGS from it..
and the GREEN LED is blinking..
But when I am connecting the other board to the FTDI cable the GREEN LED is solid and RED LED is blinking every 1 second.
Even I am unable to LOAD SETTINGS from the board..
When I click on the LOAD SETTINGS it shows "Failed to enter command mode"
I tried uploading the firmware but it failed..
So I tried in force boot by connecting the GND and CTS and connected the FTDI. The RED LED was solid and then I was able to upload the firmware.
But still after uploading firmware also it has same problem. The GREEN LED is solid and I am unable to connect.
Here is a video on Youtube to show how it is reacting..