My left side stopped working, almost. There is a very weak sound coming from it, like it needs to be turned up. I have read this thread and tried all options. I just wanted you to know that I enjoyed them very much but will replace them with a different brand. I have had them for one year, but don't have confidence in buying another pair.
Thank you for your post and welcome to the Community!
I'm sorry to hear of the issues you seem to be experiencing with your SoundSport earphones, Let's see what I can do!
I know you have said that you have tried all the troubleshooting steps mentioned in this thread which is great! However, to make sure we haven't missed anything, can you confirm which steps you have tried?