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JBL Flip 4 portable speaker. IPX7 waterproof bluetooth dual driver speaker that won the CES Innovation Award 2017.

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Why is the sound of the JBL Flip 4 turning off or not working at all

I have the JBL Flip 4 for 14 months, it worked fine. However now with the unit turned on, there was no sound or the sound disappeared after a short time  (seconds to minutes). All buttons and connections worked. The problem was observed with the speaker connected by cable to the laptop or via Bluetooth to the smartphone. Resetting the speaker (pressing simultaneously play and plus buttons) did not help.

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If your JBL Flip 4 speaker refuses to connect to another device through Bluetooth, see the JBL Flip 4 Won’t Connect Through Bluetooth problem page for possible causes and solutions.

I searched for many hours on the web and could not find any answer. Finally, by trying various combinations I found that with the JBL FLIP 4  turned on and by pressing simultaneously the Bluetooth discovery mode button (left) and the volume down button the problem was solved.

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The next day I found the same problem again. So, this was not the solution, just a co-incidence. The sound still cuts off in an unpredictable manner. Looks like a loose contact loose contact somewhere.

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Mine is having the same issue.

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Wolfgang Siess 将永远感激不已
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