Wf-700n headphone issues

[Ginodimeo]

I’ve had these earbuds for about a year now and I had ongoing issues after only a few months — notably the left earphone intermittently not working. Recently, they stopped connecting by Bluetooth altogether and will no longer enter pairing mode. I’ve initialised them but this hasn’t resolved the issue. When I take them out of the case, the left earphone now makes an intermittent chime but the right earphone is silent. These both seem like common faults following some googling but I can’t find a resolution. Any ideas?

Thanks

[TheRealOG]

@Ginodimeo Try the troubleshooting steps from the manual in the same sequence: https://helpguide.sony.net/mdr/2968/v1/en/contents/TP1000779975.html

If it didn't help, contact Sony Support.