Holding the Power button down till it beeped twice did the trick and reset my JBL Flip. It then appeared while my tablet had the Bluetooth scanning enabled and I was able to pair it. Thanks for the help!
Hi I had the same prob. Yoh need to reset your JBL Flip
Hold the on/off button down until it double beeps and flashes red and blue
Then turn your bluetooth on on your phone & it will find it