Hi there,
If it works with the Adapter then the command is correct I would say, seems like a physical connection issue.
Have you tried switching the A and B?
Can you post a picture of how it looks connected?
HTH
GL 
PJ 
Hi there,
If it works with the Adapter then the command is correct I would say, seems like a physical connection issue.
Have you tried switching the A and B?
Can you post a picture of how it looks connected?
HTH
GL PJ