Hopefully you have already solved this issue since my response is 10 months after you originally posted this. But i came looking for answers because i had the same problem and unfortunately had to look elsewhere for help to solve it, so for anyone else in the same boat here it is... Hold down the play/pause button and power button together, it should take anywhere from 15 to 30 seconds for the light to turn off. I looked on youtube and found that it happened to other JBL products but can easily be reset. If you have a different device that has a separate button for calls only you would use whichever button is for phone calls instead of the play button that is on this specific model. Still the same process just a different button.

yes hold + button and pause.

Please try to pair the speaker with a different device. Also, check and make sure that JBL Clip 3 is within the range of your phone. If you need more help, please reach out to our Customer Support via chat or email. http://bit.ly/30JI2G4

JBL Clip 3 has no capability to connect both speakers.

There are instructions in the box for how to connect two Clip 2 speakers by holding a button on both. So the Clip 3 doesn’t have the same function?

Yes, mine too. It gets really quiet, like static, and then it is loud and clear for not reason (I have not touched anything).

There's no pin code required for the JBL speakers when pairing it with any Bluetooth-enabled audio source device. It would normally be the source that is requesting for the pin. Try entering "0000," "1111" or "1234" when your device asks for a PIN. These are some of the most common default Bluetooth PINs.

That's correct. Two quick presses on the play/pause triangle button skips the track.