iFixit - Answers With Device "JBL Tune 770NC"

JBL Tune 770NC: The hinge is broken how do I fix it?

Sat, 25 Apr 2026 12:18:39 -0700

One of the hinges randomly broke and now the headphone is pretty useless as I cannot use it though it works well. I would like to know if anyone knows how to fix it. Also I fixed it once with some superfix glue and tape but that broke as well as it wasn't fitting properly on the head.

If anyone has any suggestions or tips for repairing please let me know.

Thank you

⟐ Commented April 25, 2026 at 12:18 MST

JBL Tune 770NC: My headphone right side is not working,why?

Sun, 26 Apr 2026 09:14:15 -0700

Right earbud is not working

⟐ Answered April 26, 2026 at 9:14 MST

JBL Tune 770NC: How do you Factory reset the JBL Tune 770 NC?

Thu, 26 Feb 2026 23:25:11 -0700

How do you Factory reset the JBL Tune 770NC?

⟐ Answered February 26, 2026 at 23:25 MST

JBL Tune 770NC: Why is the red light stuck on, even after removing the charging cable?

Tue, 09 Dec 2025 11:39:08 -0700

Why is the red light stuck on, even after removing the charging cable?

⟐ Answered December 09, 2025 at 11:39 MST

JBL Tune 770NC: Trying to fix left-side headphone and not finding springs

Fri, 15 May 2026 05:56:29 -0700

Hi,

I know that there is a right-side related question on the forum, but I'm trying to fix the left side, and I have a question about the springs

I believe it's a false contact between the left side and the speaker, because when moving the pad a bit I managed to make it work for a few seconds

I opened it up, and I can't figure what contacts are supposed to be the right ones to the pad... I saw up online in multiple tutorials that there are springs supposed to be there :

(there are also two really small wires, but checking the resistance, it doesn't seem metallic) (since they are really just under the pad contacts, I think they're the one supposed to be in charge of the connection ???) (I'm kind of afraid that opening it up is what disconnected them in the first place so I don't want to check on the other side...)

if anyone has an idea, it'd be great !!

⟐ Edited by author May 15, 2026 at 5:56 MST

JBL Tune 770NC: Bottom part crack can I get spare part?

Thu, 14 May 2026 04:28:45 -0700

Bottom part of my headphone crack where can i find this spare part for repair

JBL Tune 770NC: earphones will not charge

Fri, 22 Aug 2025 08:05:52 -0700

earphones will not charge

JBL Tune 770NC: Looking for a power button replacement

Fri, 07 Feb 2025 05:30:22 -0700

Hi all! I'm looking to replace the power button on a set of these. Would anyone have a part number or a link? My own searching has not come up with anything.

Thank you!