Can I trade in my iPhone 6 that is not working?

No, but you can recycle it. See > Turn the device you have into the one you want

No problem, Giulio. I did it once already today.

Ooops, sorry, seanachai. Didn't see your reply in time.

Giulio

:-)

I don't think so. Apple can offer to recycle it for free.

Simulate your trade in using this link:---> Apple Trade In - Apple

Regards

Giulio