Mini Bluetooth Speaker No Power? Diagnostic & Internal Circuit Analysis 🔊🛠️

In this video, I troubleshoot a mini Bluetooth speaker sent by a follower. It was completely dead with no response to the power button. After a teardown, I found the battery voltage was nearly zero. Although I managed to charge the battery back to 4V, the device still wouldn't turn on.

​Watch as I dive deep into the main circuit board to identify the root cause. This video covers teardown, battery testing, and board-level inspection for small portable speakers.

​Key Highlights:

✅ Bluetooth speaker teardown [00:13]

✅ Battery voltage measurement and recovery [00:16]

✅ Testing power buttons and circuit components [00:27]

✅ Identifying unrepairable board damage [00:34]

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​#BluetoothSpeakerRepair #ElectronicsRepair #FixBond #Diagnostic #Teardown #SpeakerFix #TechRepair #MiniSpeaker

Видео Mini Bluetooth Speaker No Power? Diagnostic & Internal Circuit Analysis 🔊🛠️ канала FIXBOND