Chosen Solution
First it would power on but showed a single red light as its charging status. I replaced the battery, it powered on and showed 3 white lights as its charging status. I plugged it in to charge overnight, and now it shows 2 white lights as its charging status. I tried different cords, but no lights flash indicating that it is charging. I checked the charging port and it is not loose. Any ideas?
If your JBL Flip 4 speaker will not charge or won’t hold a charge, see the JBL Flip 4 Will Not Charge Or Won’t Hold a Charge problem page for possible causes and solutions.