iFixit - Answers With Device "JBL Flip 4"

JBL Flip 4: My JBL Flip 4 doesn't turn on and charge.

Tue, 27 Feb 2024 08:53:42 -0700

My JBL Flip 4 doesn't turn on and charge. It was playing good whole evening, but after that time that I turned it off it doesn't turn on anymore. When I plugged it in with different chargers it gives no response and battery indicator lights are not highlighted. Tried to reset by holding power button 30 sec, didn't help. Please, if someone know something about this problem, please help.

⟐ Answered February 27, 2024 at 8:53 MST

JBL Flip 4: Flip 4's battery runs out quickly and other problems.

Tue, 18 Mar 2025 04:37:46 -0700

My Flip 4, only bought it for like half an year, is having a battery issue where it runs real quick. And when it charges, I find some problems like stopping the blink (which indicates it is being charged) stops at 4 point and never run to 5th unless I plug it in, again. And the sounds are getting distorted when the light hit red which indicates the battery has run short. I get it if the battery is efficiently using the juice by not using its full sound quality but when I turn up the volume at that moment, the battery runs out and the speaker shuts down. I bought it as my travel accessory and it doesn't quite help me with my purpose.

⟐ Answered March 18, 2025 at 4:37 MST

JBL Flip 4: Why playing via AUX cut's on quiet passages in the songs/movies?

Sun, 24 Aug 2025 12:39:50 -0700

There is this problem with JBL Flip 4, I think that playing via AUX sound is more controlled, clearer bass and less distortion. But it cuts out the sound on quiet passages in the songs, or in the movie, it soo annoying. Does anyone have a solution? It works fine with BlueTooth, but let's say, movies, the sound has a delay via BlueTooth so it's weird.

⟐ Commented August 24, 2025 at 12:39 MST

JBL Flip 4: JBL Flip 4 makes no sound

Sat, 16 Apr 2022 03:54:04 -0700

There is no sound from bluetooth, aux and even system sounds do not work. LEDs are blinking, but I hear nothing even when I turn speaker on/off or toggling bluetooth/pairing mode.

Hi guys, thank you all a lot for the answers but my speaker now started to work fine by itself somehow.

⟐ Answered April 16, 2022 at 3:54 MST

JBL Flip 4: JBL Flip 4 is not charging

Fri, 15 Jan 2021 13:38:06 -0700

My JBL Flip 4 will not charge. I had it for a while until the charge went dead and it will not charge. I plug it in and leave it for a couple hours and when I come back to check on it, it hasn’t charged at all.

⟐ Answered January 15, 2021 at 13:38 MST

JBL Flip 4: Removing Swollen Battery from JBL Flip 4

Thu, 02 Oct 2025 06:46:16 -0700

My Flip 4’s battery went kaput. I researched how to swap the battery, purchased a replacement and was doing great until I realized that the original battery has swelled to the point that I’ve not been able to remove it.

In trying to remove it, the wiring harness ripped off and a little fire started!

I have a certified JBL repair facility two blocks away, but was hoping to get this done myself.

What’s a safe way to remove a swollen battery from a Flip 4?

⟐ Commented October 02, 2025 at 6:46 MST

JBL Flip 4: Waterproof JBL Flip 4 is buzzing when bass is turned up

Wed, 13 Oct 2021 09:34:11 -0700

My waterproof JBL Flip 4 is making a buzzing sound along with the bass of the music when turned up. Could I have blown a speaker, if so can it be repaired/replaced?

⟐ Answered October 13, 2021 at 9:34 MST

JBL Flip 4: Why does the audio become distorted then power off?

Tue, 25 Jun 2024 18:52:23 -0700

I’ve had this speaker for about a year and had no problems until recently. Even though it has a full battery, the bass becomes very distorted before it powers off after being played for 5 minutes.

⟐ Answered June 25, 2024 at 18:52 MST

JBL Flip 4: My JBL won't turn on and shows no lights

Thu, 27 Jul 2023 06:59:32 -0700

My JBL was charging and the next morning I tried to turn it on and it won’t turn on. It doesn’t show any indicator lights that it’s charging. Any help would be amazing!

⟐ Commented July 27, 2023 at 6:59 MST

JBL Flip 4: Not charging or turning on

Sun, 30 Oct 2022 13:25:06 -0700

My JBL speaker has been working fine and now nothing lights up even when it’s plugged in. I’ve used 3 diffrent cables to try and charge it with they don’t make a difference. Nothing has worked and it makes me sad. I’ve tried resetting it and again nothing happened, so I don’t know what to do.

⟐ Commented October 30, 2022 at 13:25 MST

JBL Flip 4: JBL Flip 4 doesn't search for Bluetooth devices.

Thu, 30 Jun 2022 22:23:23 -0700

Hi everyone, my JBL Flip 4 speaker, when turned on, doesn't show the blue light to connect my cellphone via Bluetooth. The light stays white and whatever I do, it will never change color and try to connect to a device. I tried resetting but I can't because it never changes to the blue or red color. I've tried everything on every forum and nothing seems to work. Please help me!

⟐ Commented June 30, 2022 at 22:23 MST

JBL Flip 4: How to replace the battery of jbl flip 4

Mon, 15 Oct 2018 11:56:31 -0700

battery replacement guide

⟐ Commented October 15, 2018 at 11:56 MST

JBL Flip 4: My JBL Flip 4 charges but won't turn on

Fri, 30 Aug 2024 23:58:03 -0700

This afternoon I used the JBL Flip 4 and it worked, until in the evening when it started to go off by itself after a few minutes. Then, I turned it off and it won’t turn on anymore. When I connect it to the PC the battery lights are all on.

⟐ Answered August 30, 2024 at 23:58 MST

JBL Flip 4: JBL FLIP 4 water damage and glue problem?

Tue, 31 May 2022 12:55:48 -0700

Hello!

I have submerged/tested my speaker in water at home (considering the certification). The JBL then got dried out but water under the power button was apparent in form of drops, which then also condensated and after about 24 disappeared. Is this normal behaviour for this speaker as it is IPX7 certified. Where might the water come from. I have only seen one video in You Tube where the same problem is regarded. (picture attached for my speaker)

Blue color is the norm whereas white is condensation.

I have a clue that it might leak from one of the passive radiators. Both of them seem to be poorly glued on the body of the spaker, BUT I have checked other speakers at the store, where I bought it and they too seemed to be rather poorly glued on, but maybe not as much as mine. Or it could just be condensation even though I don't think so.

The speaker still works fine. I had the opportunity to send it for "Repair", but this means that I will have to wait about a month for nothing, probably.

⟐ Answer accepted May 31, 2022 at 12:55 MST

JBL Flip 4: Play, Volume + and - and Bluetooth Button not responsive!

Wed, 01 Oct 2025 13:47:55 -0700

HI everyone!

Has anyone had experience with their Play, Volume + and - and Bluetooth Buttons not responding? Speaker powers on and off and Connect + buttons work just fine but none of the others respond, so I cannot factory reset or pair to any new devices (speaker works just fine on my computer but can’t get it to pair to my phone). Anyone know what I might be able to try? I’m seeing info for Power button but not for these other buttons.

Thank you!

⟐ Commented October 01, 2025 at 13:47 MST

JBL Flip 4: Water inside of speaker

Tue, 15 Aug 2023 11:17:31 -0700

Hello! Today i bought JBL Flip 4 and i tested with water at passive radiator... when i poured water on passive radiator the water has been outside from the next radiator.... is this a problem for my speaker?? Water will ruin the motherboard or other parts of the speaker? But i see some water on power button and connect + button..... but this speaker is IPX7 Waterproof... is this a problem???

⟐ Answered August 15, 2023 at 11:17 MST

JBL Flip 4: My JBL Flip 5 does not turn on?

Fri, 15 Jan 2021 13:07:03 -0700

I used my speaker a couple of times and I charged it and now it doesn’t seem to turn on, but when I plug it in for charging it indicates that it is getting charged.

⟐ Answered January 15, 2021 at 13:07 MST

JBL Flip 4: Connect + no longer opening since iOS update

Mon, 18 Jan 2021 10:38:09 -0700

For some reason ever since the update to iOS 11.2.5, my JBL Connect + app (that previously worked fine) no longer works. It now starts on a screen that directs me to turn on the Bluetooth on my iPhone X, despite it already being turned on and paired with the speaker.

No matter which order I do things in (I’ve tried turning off Bluetooth and then starting it when the Connect + app asks for it, but it still doesn’t think I have Bluetooth turned on).

I’ve tried restarting my phone, telling it to forget the speaker(s), resetting the speakers to their factory settings etc. No dice.

The main issue I have is that I use two Flip 4’s for the stereo feature but I can’t turn that on unless I can access the app.

Can anyone help or has anyone else had problems since the iOS update??

⟐ Answer edited January 18, 2021 at 10:38 MST

JBL Flip 4: How do I fix the bass of jbl flip 4

Thu, 05 Jul 2018 11:47:23 -0700

My jbl flip 4 bass is crackling how do I fix it?

⟐ Answered July 05, 2018 at 11:47 MST

JBL Flip 4: JBL wont't turn on and takes no charge after failed to update firmware

Tue, 10 Dec 2024 03:18:22 -0700

Hi Guys!

So, I have this JBL Flip 4. I opened on the phone the Jbl app, and it showed to update from 3.2 to 4.0 firmware. I agreed, then it showed to plug the device into a charger. I didn’t agreed that, then I made a phone call. After that I plugged the JBL in and agreed the firmware update. So after that the app showed it can not update it. I restarted the app and cleared cache 2 times, and waiting for the firmware update pop-up, it didn’t showed up again, after that I factory reseted the JBL by pressing the shown buttons for 10 seconds. After that the JBL won’t turn on and even it was not able to charge up. I tried to plug it in PC USB too. Notice:I put the JBL on charger after making the phone call and it was charging during the reset. I don’t think this device can be fixed without opening it, but I rly don’t want to lose its waterproofness.

The battery is fine I think, it charged up to 3 LED out of 5, maybe something with the logic board. I tried all the button combinations and it doesn’t show anything.

The question is:

Can I fix it by not dismantling it ?

# Can I fix it by dismantling it ? (The waterproofness is not a problem then anymore)

# How could I fix it, if I can or trow out the logic board

# Or can I find a reset button on the logic board ?

Thanks all of you guys and please ignore the why you did that answers/questions.

I just try to make sure if I can fix it or I need to throw it out. Yep, the warranty is expired half a year ago if you ask.

⟐ Commented December 10, 2024 at 3:18 MST