Here is a video on how to repair a JBL Flip 4. I bought this damaged JBL off ebay for $20. It has crackling sound when music is played. Here i show you guys how i fixed it. Enjoy.

Buy the Flip4 here: https://amzn.to/35L0UGL
JBL Flip 4 Replacement Battery: https://amzn.to/3p0KRne
Tool used: https://amzn.to/35jg3iy
Camera: https://amzn.to/2XACNIe
Tripod: https://amzn.to/34cKRRN

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Music:
Echo by Broken Elegance   / brokenelegance  
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream: https://bit.ly/_echo
Music promoted by Audio Library    • Echo – Broken Elegance (No Copyright ...  

Wait for You by INOSSI   / inossi  
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream: http://bit.ly/_wait-for-you
Music promoted by Audio Library    • Wait For You – INOSSI (No Copyright M...