JBL EXTREME 2 , not charging, Not turning on

My JBL Xtreme 2 is not charging and, even when plugged into the wall, is turning off just a couple seconds after I press the power button to turn it on.

When I plug it into the wall using the power source, it just flashes one red light. I’ve left it “charging” for like 12 hours and still nothing.

The speaker is not old - less than 6 months, the charger is fine, and there is no damage that I can see. I tried to “reset” the speaker by holding play and volume up buttons, but the speaker doesn’t even stay on for 5 seconds in order to reset anything.

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