responded : 1:09pm, 14th December 2017 (2 years ago)
So once they are unplugged from charging do they show any LED lights at any point or does it appear totally dead? Also if it is charging are you able to use whilst charging ?
responded : 11:45am, 19th December 2017 (2 years ago)
I have the same problem , wont turn on , it does not show any LED lights , its totally dead . Can you help please ?
responded : 2:39pm, 23rd January 2018 (2 years ago)
Has anyone found a solution to the problem?
responded : 3:35pm, 23rd January 2018 (2 years ago)
I believe holding down the power button to reset it can be done by pressing it for a very long time, around 10/15 seconds. Does this help ? If there are no lights at any point, even when charging it would seem to suggest its definitely dead.
responded : 10:56am, 21st February 2018 (2 years ago)
I have the same headphone and mine have the led light on but they won't reset or turn off or connect... I've tried everything suggested here read the manual/info booklet, any further advice please?
responded : 11:26am, 3rd April 2018 (2 years ago)
Hold down the power button for about 15-30 seconds and it should turn on. If it doesn't then you need to bring it to a repair shop
responded : 8:50am, 18th April 2018 (2 years ago)
I solved it.
Hi. The LED light was never lightning. I do something but i don't know which way fixed my t450bt. First, there is a switch near of the power button. Press it three or five times. Then hold the power button about 40-50 seconds. When hold the power button connect to the charge. So LED starts to lightning.
responded : 9:11pm, 18th April 2018 (2 years ago)
Thanks for sharing Ialao!
responded : 8:05am, 24th April 2018 (2 years ago)
lalao you're my hero! Thanks for your advice. I've tried to reset it by holding the power button for 10-15 secs but never tried for 40-50secs. It solved my problem. Thanks!
responded : 12:30pm, 2nd May 2018 (2 years ago)
I had the same problem. I had the same model, and it was working fine until today.
The thing won't turn on, but if I charge it, the lights come up. But, even after 3-5 hours, the light just won't turn off like it normally would.
Tried the power button thing, doesn't work. Any help?
responded : 9:16am, 12th May 2018 (2 years ago)
The LED light on my headset (JBL450T) comes on when I hold the power button down, then blinks. It connected a couple of times, at first, but now won't connect to my computer (a Macbook Air). It'll connect to my iphone 5S, but the connection has broken several times. (I hope to call the Service center here in Seoul next week.)
Any other ideas?
Thank you in advance!
(Bluetooth Doctor, thank you very much for providing this site and service!)
Mark in Seoul
responded : 6:46pm, 18th May 2018 (2 years ago)
Worked for me ty.
responded : 8:44am, 22nd June 2018 (2 years ago)
I have same problem
I purchased from Dubai C4
Warranty is valid in Muscat or only in Dubai
responded : 4:03am, 11th July 2018 (2 years ago)
lalao you are a genius.... i had same problem mine would turn on or charge... i did what lalao said i boom fixed... legebd my mate
responded : 4:05am, 11th July 2018 (2 years ago)
lalao you are a genius.... i had same problem mine wouldnt turn on or charge... i did what lalao said i boom fixed... legebd my mate
responded : 4:34pm, 15th July 2018 (2 years ago)
It works!!! My light was on. I pressed the button 5 times near the power button. I held the power button for 40 -50 seconds!
I am back in business.
responded : 1:24pm, 22nd July 2018 (2 years ago)
Hi! Can somebody explain where exactly is that button near the power button? My problem is, when I start charging headphones the LED lights up for 3 seconds and then it turns off and it would'n charge. Will this solution also work for me?
responded : 2:37pm, 24th July 2018 (2 years ago)
Thanks, lalao it's work with mine.
@Leki, I press every button (-, ., +) 3 times each.
responded : 10:19am, 31st July 2018 (2 years ago)
@Laki Same problem here! Already wrote to harman hope they answer soon if you get a solution please share it!
Jbl new owner
responded : 5:53pm, 8th August 2018 (2 years ago)
Thanks lalao i have the same problem now its fixed thanks for this wonderful thread
responded : 2:50pm, 20th August 2018 (2 years ago)
I have the fix for it..
you need to hold down the power but. for abut 15 sec.
pls try and start to caunt @ 21 to 35 its better sry for bad english
responded : 6:06am, 23rd August 2018 (2 years ago)
My problem is the power button, it feels like it had loosened up .it just feels so soft and doenst turn on the headsets.
However when changing, the light does come on.
responded : 2:54am, 25th August 2018 (2 years ago)
Press power button 20-40 sec and connect charger same tine
responded : 4:42pm, 29th August 2018 (1 year ago)
Thanks lalao. I sloved this problem.. thanks for sharing the method..I was thinking to return this headphone since the light not indicate at all.. but thanks to u its works.. thmbs up!
responded : 2:34am, 31st August 2018 (1 year ago)
lalao you are the BEST!! came here looking for solution to the same problem and yours worked. i pressed the button nearest power button(- volume button) 5 times, held power button down and it turned on right away. thank you so much!!!
responded : 10:13am, 31st August 2018 (1 year ago)
Thank you so much lalao. Holding the power button for 40-50 then plugging it solves the problem! I was starting to freak out I hope more people find this thread :)
responded : 10:36am, 19th September 2018 (1 year ago)
Ayanda Mlambo, I had the same problem... tried the 5 presses then power button for 50 sec... nothing.. I actually just pulled off the ear padding opened up the 3 screws and saw the problem straight away!
Where the power button is I saw it had shifted to the side of the switch, so when I was pressing the power button it wasn't connecting to anything. I nudged it back in place and voila! It is working again! yay!!
I wouldn't fiddle around too much with the electronics if you're not in the know, but this was a simple and obvious fix and it saved me taking them in for repairs.
responded : 8:38pm, 15th October 2018 (1 year ago)
I got mine out of the box. Plugged the charging cable into my laptop. The charging light came on. Went to pair with my laptop..... nothing.
Okay so I realise I may have to have the power on. So I push the power button to ON. NOTHING.
I haven't fully charged it up yet so I'm hoping that's all it is. But very doubtful after this thread !!! Wish I'd never brought it.
responded : 4:52am, 23rd October 2018 (1 year ago)
I owe JBL an apology. See answer from 15th October 2018.
I got my headphones out of the box and had trouble powering on. BUT !!!! It turns out I had to fully charge it first. The power button turned on easy. Its been 8 days now and Ive used my headphones for maybe an hour or so a day and not needed to recharge yet. So Im very happy so far !!
responded : 6:14am, 25th October 2018 (1 year ago)
Mine had red lights while charging, but it didn't turn on when i pressed the on button.
I tried pressing the on botton and then the middle bottom (the one between the + and - bottons), and it worked!
Viet Hoang Phan
responded : 12:36am, 15th November 2018 (1 year ago)
i think left it charge over night cause the problem. i hold for 40s and then tap the power button for 4-5 time and hold it again it come back to life.
responded : 6:55pm, 19th November 2018 (1 year ago)
JBL user thankx! Same problem, same fix!
responded : 12:16am, 24th November 2018 (1 year ago)
Holy shit, kudos to JBL User, I realized myself that my power button wasn't working at all, followed your instructions and now they're working as before.
My issue = power button didn't work, the headphones itself worked for around 7/8 seconds and ONLY if they were off directly off charging.
Went 2 months before this happened.
Anyways, JBL user, you saved me time and money, give yourself a pat on the back.
responded : 7:32am, 24th November 2018 (1 year ago)
Thank you so much lalao - pressed the bluetooth button five times then held the power down (after charging overnight) for forty seconds and it is now all working perfectly! Bought these in Muscat, so couldn't have taken them back - thank you very much!
responded : 4:35pm, 25th November 2018 (1 year ago)
JBL user, thank you so much! It worked!!
responded : 4:12pm, 3rd December 2018 (1 year ago)
Hey, My JBL T450BT Led light only switches on for a few seconds then goes back off, what could be the problem
responded : 4:54pm, 10th December 2018 (1 year ago)
My headphones were completely dead, there was no light and it wasn't even charging,so I just pressed the plus, minus and play button three times each and then kept the power button pressed until the light turned on, for like 30 seconds. Now my headphones are working properly.
responded : 4:33pm, 12th December 2018 (1 year ago)
I can confirm that I had the same issue: bought the damn things at an airport and so it's practically impossible to get a warranty swap. Thanks to the steps above, I was able to get it working again:
1. Press inside the hole next to the power button with something firm a few times whilst holding power button
2. Keep holding power button for over 30 seconds
3. Whilst holding power button down, reconnect the charger cable.
This seemed to bring it back to life, whereas various other lengths of time and steps didn't. Thanks to lalao above for the discovery.
responded : 5:03pm, 17th December 2018 (1 year ago)
Lalao it worked!!!! Thanks
responded : 3:29am, 4th January 2019 (1 year ago)
lalao you are amazing, I had the same issues and I follow up your step and the issues was fixed... Thank you for sharing
responded : 6:43pm, 4th January 2019 (1 year ago)
mine is turn led orange when charging but when i try pairing it with my phone doesn't turn on or pair
responded : 9:28pm, 14th January 2019 (1 year ago)
Mine came back to life while i was holding power botton and headphone was connected to charge, i disconnect the charge (still pressing the power button) booom! So connect or disconnect while holding power button (for long time) works
responded : 12:48pm, 19th January 2019 (1 year ago)
I have had the same problem and after a while my dad fixed it and said you just need some sort of sequence, i dont know the sequence but the sequence consists of the play, volume buttons and the power on button. I have this often after charging and it works most of the time by pressing the play button 3 times and then hold the power button
responded : 8:53pm, 19th January 2019 (1 year ago)
I tried every solution written but nothing works. Can anybody help me ? I bought it in London at Airport in WHSmith.
responded : 11:24am, 23rd January 2019 (1 year ago)
In my case my JBL T450BT headphone while connect to charger the light turnes on for 5-10sec. and closed again. And I disconnect to charger, try to open it but that dosent work. I tired to hold 40-50 sec for 4-5 times and one time the light turnes on for 5-10 sec again while the charger disconnected. I cant open it permanently. I can only see a short light for some times. Is there any solution for my problem?
responded : 5:17pm, 8th February 2019 (1 year ago)
Same issue happend. My earphones wer not functioning... Google searched the issue... Held the power button for 50 sec.. Then bhoom.. It started functioning...
responded : 6:34pm, 25th February 2019 (1 year ago)
I had a problem where mine was lighting when charging but wouldn't power when not charging and i mixed advices here and had the idea to hold the button while it was charging and then unplug the charger while holding the button and it worked . May be useful for others
Why won't this work
responded : 3:51am, 28th February 2019 (12 months ago)
I've tried ALL of these solutions and none of them are working. The light isn't on, even though they're charging. I just got these yesterday and when I tested them yesterday the were running smoothly, if not perfectly. I'm stumped and furious. Someone help!!
responded : 6:08pm, 8th March 2019 (12 months ago)
I just got a set of these Headphones and after trying ALL of the Suggestions found here I have decided that these Headphones are more trouble than they are worth. If JBL can't 1. Add a troubleshoot section with their painfully inadequit user sheet of paper that they jokingly refer to as instructions and 2. put out a Product without this much problem right from the get go then JBL is not the Company they used to be and I'm returning them for a more reliable product. I'd rather spend my $50.00 for Headphones with a wire than go through this aggravation over a pair of G Damn Headphones.
responded : 8:07pm, 8th March 2019 (12 months ago)
None of these solutions are working for me I put the charger in the headphones and it lights up but for like 3-5 seconds then disappears ugh I dont want to go back and return it please help or direct me to someone that can
responded : 5:29am, 9th March 2019 (12 months ago)
Thanks for the good feedback. I've also tried the steps above, it blinks with a darker blue colour then disappears. When I connect the charging cable it shows the light blue colour but then disappears. Any other tricks to use? Thanks. Na'el
Hector Pascual Haba
responded : 9:41pm, 11th March 2019 (12 months ago)
Mine are completely dead, I dissasembled em in order to see if there were some kind of unsoldered wire or something and everything seems normal, also tried some of your steps and didnt manage to get it working, any other advices/steps? thanks.
responded : 2:37am, 9th April 2019 (11 months ago)
Holding down power button and plugging in charger worked for me
responded : 4:45am, 16th April 2019 (10 months ago)
Resetting it by pressing for 40-50 seconds worked for me!! Thanks so much.
responded : 3:04pm, 21st April 2019 (10 months ago)
Lalao, thanks for the help mate! I was facing the same issue on JBL T460BT, and your solution worked!
Thanks a ton!
responded : 5:37pm, 10th May 2019 (10 months ago)
My T450BT did manage to charge and work for a few days, but affter that, it simply didn't work anymore.
I did the same trick, but nothing worked. But then I realized that if I leave it off for a few days and charge it again, it works like a charm again.
So, it's possible that it is a baterry problem and by leaving it off for a few days, it would simply run the battery dry. If you had the same problem as I had, maybe this will work.
responded : 8:25pm, 21st May 2019 (9 months ago)
The trick from JBL support is to simultaneously press the + & - buttons (volume controls) 3-5 times to reset headphones and then hold down power until led light comes on. My headphones wouldn't come on but now they work perfectly.
responded : 6:16pm, 23rd May 2019 (9 months ago)
hey, dealing with the same problem, tried all solutions, stuck needles down that hole next to the power button, held the power button and plugged it in, held it for 50 seconds, disassembled it, nothings working. The only thing keeping me from believing its dead is the fact that it still lights up when I first plug it in the charger, but after a couple seconds, and no matter what I do, it still ends up turning off, please help im on my knees begging
responded : 9:38pm, 1st June 2019 (9 months ago)
i tried holding power button for 1 minit and it starts working
Mpho Samuel Polile
responded : 7:52pm, 5th July 2019 (8 months ago)
Thanks Lalao, you've helped me a lot, i nearly throw my new headset away
responded : 11:42am, 27th July 2019 (7 months ago)
hi!! um my jbl headphones weren't working either and i had tried everything: charging, holding it down, everything! but, lalao saved me. i just pressed the buttons next to the the charger (+, . , -) like 4 times each and then pressed the power button for about a minute. it really works! so pls try this method if it doesn't work :)
responded : 9:31pm, 4th August 2019 (7 months ago)
I had the same problem with some here power would not come on no matter what, then tried the opening it up and just nudge the power button over just a bit and voila, back on.
Thanks JBL user for the info.
responded : 5:10am, 5th August 2019 (7 months ago)
Wooooh, it work me too, 5 press + button the power for a 10 secs. :-) Thank for the idea, i thought I was gonna have to throw this away already. :-)
responded : 5:15pm, 6th August 2019 (7 months ago)
Mine was the battery dead. I replace it and works fine.
responded : 10:44pm, 20th August 2019 (6 months ago)
dropped water on mine. it didn't turn on but it charged and the charging light turned on. tried pressing all buttons down for a few seconds (power, then volume up+play, then vol up+vol down+play, etc), then i kept pressing and releasing the power button quickly, about 20 times and the light flashed, then held the power button for a few secs and it turned on. works fine now.
responded : 4:25am, 7th October 2019 (5 months ago)
Lalao solved it. I pressed the volume minus button five times in a row the immediately pressed the power button and within 5-6 seconds the things turned back on. I tried everything else, though for sure they were dead and was almost going to turf them. Thanks Lalao.
responded : 6:25pm, 27th October 2019 (4 months ago)
I had this issue in my T450BT and the problem is.............the cable between both sides! as you use the headphones, the wire is bent many times, in the end it gets damaged and the power form the battery fails to reach the main unit.
It must be said that you have the bluetooth module in the side of power button but the battery is on the other side, there is a 4 wires cable that carries the power and audio signal.
Solution, change the 4 wires cable and you are done.
responded : 9:21pm, 5th December 2019 (3 months ago)
This is awesome. Last year(11 months ago) I found this page and fixed the problem. With my new headphone I had the same problem and again found this page (as I forgot the method) And solved!!! plug in while holding the power button.. later disconnect from power and you can turn it on .. See you next year!!
responded : 5:22am, 19th December 2019 (2 months ago)
Guys thank you for the help it actually worked the step for holding the power button for a more than a min it got reset. I was about to break my head set. You guys made my day....!!!!
responded : 11:58pm, 20th December 2019 (2 months ago)
Dear all. I had this fail, when i plug the headset for charge the white light turn on for 3 seg and them the light go off. The buttons combination dosent work for me. I take out the cover and the three screws. I check the card and i seen one wire desoldered (in the card ) the card say bat in this part. Sorry for my english (In my case the headset have just two wees of use) them i solde this wire and TADA the headset back to the life
responded : 9:08am, 22nd February 2020 (4 days ago)
My jbl 400bt live all of a sudden it turned off. And now it won't turn on and it can't charge.Totally dead. Anyone plss help