JBL speaker showing up as “cannot be verified as genuine AirPods”?

1. Check if there is a firmware update available for your JBL Charge 5. Sometimes, manufacturers release updates to improve compatibility with various devices
2. Make sure that the JBL Charge 5 is compatible with your iPhone model. Check the JBL website or contact their customer support for any specific compatibility issues.
3. If possible, try connecting the JBL Charge 5 to another iPhone to see if the issue persists. This will help determine if the problem is specific to your iPhone or the speaker.
4. Reach out to JBL customer support for assistance. They may have insights into any known issues or solutions for this specific problem.
5. Consult the user manual for your specific JBL Charge 5 model to find the instructions for resetting it to factory settings. This process may vary depending on the model, but usually involves holding down a certain button combination for a specific amount of time.
6. Forget and re-pair the device:
   1. Go to Settings > Bluetooth, find your JBL speaker on the list, and tap the "i" icon next to it.
   2. Choose "Forget This Device" to remove the pairing.
   3. Then, put your JBL speaker in pairing mode and re-pair it with your iPhone.

Additionally:

• It's interesting that the Apple Store couldn't identify the issue after running hardware checks. Although unlikely,you might want to consider getting a second opinion from another Apple technician or authorized service center.
• Since the issue isn't present on other devices, it seems isolated to your iPhone. While the error message is misleading, it could be an incompatibility with the JBL speaker. You could try updating to the latest iOS version.