While you can do all the above, my issue was resolved by (1) ensuring that Bluetooth was turned on on the iPhone 7, (2) powered on the JBL Flip 3. At this point the speaker still was not discovered by the phone. What is missing is you must pressed the small raised Bluetooth insignia on the grill area of the speaker, which starts the pairing process with the iPhone. This allowed the speaker to be discovered and connected with the iPhone.