JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank
JBL Charge 4 Troubleshooting - iFixit
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jbl charge 4) the speaker doesn't make any sound not even the little on/off chime. i tried connecting via aux and it still didn't work. also, the battery life indicator is on
How to Factory Reset and Troubleshoot JBL Charge 3 & 4 Audio Bluetooth Speakers - YouTube
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JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank
JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank