The main reasons why AirPods might not connect to a phone include:
- Bluetooth being off on the phone.
- AirPods battery being low or drained.
- AirPods being out of range from the phone.
- Interference from other Bluetooth devices nearby.
- Software bugs or incompatibility between devices.
- AirPods already connected to another device.
- Dirt or damage on AirPods or their case.
- Outdated phone or AirPods firmware.
Quick fixes to try:
- Ensure Bluetooth is enabled on the phone.
- Charge the AirPods and their case fully.
- Keep the AirPods within range.
- Restart the phone and AirPods.
- Put AirPods back in the case, then reset them by holding the setup button until the light flashes white.
- Unpair AirPods from other devices if needed.
- Check and update the phone iOS to the latest version.
- Clean the AirPods and charging contacts if dirty.
If all fails, factory resetting the AirPods and reconnecting usually resolves the issue.