It can happen sometimes that your Q Adapt In-Ear will not connect properly when inserted in the lightning port on your iPhone. 

Before blaming the cable or phone, we recommend checking your device's Lightning port. There is a good chance that lint from your pocket has build up inside the lightning port.

It's really simple to fix.

To be safe you should back your iPhone to your computer or the cloud. Next power OFF your iPhone and use a WOODEN toothpick to gently remove the lint.