How do I update airpod pro firmware without iphone/ipad
I visited the apple store today to check on my airpod. The Apple technician said I need to come back after updating my airpod pro, also said I can do it without other apple devices. So far, I removed bluetooth connection with my phone, plugged the airpod case into the charger. How do I know if it is updated?
AirPods Pro (2nd generation)