I am using the C3 on a Canon 7D with a Droid Razr. I could not get the trigger happy to function and read your troubleshooting article. It did not give the exact solution to my problem but it helped me figure it out.
For the razr I went to settings> sound> wired Stereo devices>, once there I unchecked Enable audio effects. This action corrected my issue and the trigger is working well now.
Just wanted to pass on my experience in an effort to help build your troubleshooting data base.
I am using the C3 on a Canon 7D with a Droid Razr. I could not get the trigger happy to function and read your troubleshooting article. It did not give the exact solution to my problem but it helped me figure it out.
For the razr I went to settings> sound> wired Stereo devices>, once there I unchecked Enable audio effects. This action corrected my issue and the trigger is working well now.
Just wanted to pass on my experience in an effort to help build your troubleshooting data base.