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The Wonderboom is a Bluetooth portable speaker from Ultimate Ears. Released in 2017. Model number: 984-000839.

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Not charging, no flashing light

My device is not the first Wonderboom but the second, Wonderboom 2, could not find it as an device on here. When I try to turn it on it flashes red and makes the power down sound. When I connect it to charge nothing happens, no lights turning on, nothing. I’ve tried resetting it by holding down all the buttons but that did not work.

I have contacted the support multiple times but I’m not even getting an answer from them even though I am covered by the warranty.

So I would like to fix it myself instead. Anyone know how?

Answer this question I have this problem too

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First are you sure your charger and the cable are working? I would get a USB power meter to see if there is power even getting to the speaker. If it is then you really need to get yours replaced under warranty as these speakers are too well sealed up to open and then what then? Replace the battery is about all you can do. Otherwise try a different charger and cable.

Try emailing UE email support

USB Mini Voltmeter Image

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USB Mini Voltmeter

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Yes, charger and cable are both working. Have checked with other devices. Saw a youtube video of a guy removing an capacitor on the first wonderboom so I was thinking maybe there is a similar workaround on the wonderboom 2

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Often the socket or charging logic within the unit dies. Once you open it its not water tight! If under warranty I would push for free Vs getting nothing but mess or half useful speaker.

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I had the same problem!I!!!! I changed chargers & the cord tested it(the set+up) & charges away. The light Didn't come on but the unit charges. Kris. Aloha

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