1. Upon powering on, the earbuds reconnect with the most recently connected device. You'll be asked to confirm if the last device used is the one you're currently using.
2. If the earbuds leave the charging case and don't find the last connected device within 1 minute, they enter a timeout state. To exit it, place the earbuds back into the case, close the lid for 5 seconds and then reopen it to initiate a new connection.
3. Perform a factory reset by holding the function button on the charging case for 10 seconds or more, and then pair the earbuds again.
4. Update to the latest software using the Nothing X App.
Note: all device customisations are already integrated into the settings of Nothing OS version 1.1.4 and higher. Please keep the Nothing X app updated via the Google Play store.