Enabling GPS

I am attempting to get GPS working on an RB532. I have 2.9.43 installed and see the enabled GPS package. I telnet in and go to system gps and type “set enabled=yes port=serial0”. The response that I get back is device is busy (and it doesn’t work).

What am I missing?

Regards,

Joey

/system console
then disable the one thats using serial0

Sam