How to update JBL Partybox 300 firmware | 341219 to 381221
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YouTubeDaFreezz
How to update JBL Partybox 300 firmware | 341219 to 381221
Upgrade procedure: 1. Place the “Harman_G15.HUI” file into the root directory of an empty USB-stick. 2. Connect the Partybox to mains power. 3. Power ON the Partybox. 4. Insert the USB-stick into the USB socket placed on the rear side of the Partybox. 5. Press the Volume+ & Bluetooth buttons simultaneously for more than 10 seconds. The unit ...
80.2K viewsOct 22, 2020
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