Fixing a portable Bluetooth speaker with no signs of life

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In this video, I'm exploring a broken Bluetooth speaker with an internal battery that was reported as dead and not charging by a friend of mine.
Initially, I suspected that there was a broken wire inside since there was a knocking sound coming from inside but the entire repair turned out a bit more involved when I had to dig into the battery, investigate the circuitry, and end up re-soldering the connector using my hot air station.
Tools and materials used in the video:
Hobby Rework Station - s.click.aliexpress.com/e/_mNM...
Professional Rework Soldering station - s.click.aliexpress.com/e/_Eze...
USB Connector - s.click.aliexpress.com/e/_mKY...
Multimeter - s.click.aliexpress.com/e/_oF0...
Pen Screwdriver - s.click.aliexpress.com/e/_ooZ...
Wire Snips - s.click.aliexpress.com/e/_onM...
Soldering Flux - s.click.aliexpress.com/e/_oFA...
Bench Power Supply - s.click.aliexpress.com/e/_olv...
USB Power Meter - s.click.aliexpress.com/e/_mOJ...
The written article is available at:
www.tastethecode.com/fixing-a...
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My recording gear:
Canon M50 Mark ii - s.click.aliexpress.com/e/_olp...
GT10 Pro 5G Android Phone - s.click.aliexpress.com/e/_oDn...
Dragon Touch 4K Action Camera - s.click.aliexpress.com/e/_mrc...
USB Condenser Microphone - s.click.aliexpress.com/e/_mq9...
Tripod - s.click.aliexpress.com/e/_Eyn...
Phone tripod mount - s.click.aliexpress.com/e/_oDT...
Fixing a portable Bluetooth speaker with no signs of life
#repair #speaker #bluetooth #electronics #tastethecode
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[@SlavkosHobbyChannel]

Profix! Great job!

[@TasteTheCode]

Thanks! ☺️☺️

[@mphocombo]

How can i fix my omega portable speaker that when i switch it on theres no sound but only power on light?

[@TasteTheCode]

Check for broken wires. Otherwise it might be an issue with the amplifier circuit.

[@johnnybabugo1273]

Very interesting, need some help from you.

[@TasteTheCode]

Thanks, how can I help?

[@johnnybabugo1273]

I have a Bluetooth speaker, but switch off even turn switch on, it turn off by itself. Any idea why this is happening??

[@TasteTheCode]

The battery might be gone. When a lithium battery is bad, it will often go undervoltage and the protection circuit will turn the device off.