How do I reset the Kinglucky A8 earbuds?

Reset the earbuds when they fail to connect or only one side works. These are the steps from the official user guide.

1. Delete Kinglucky Earbuds from the Bluetooth list on your phone, then turn Bluetooth off.
2. Place both earbuds into the charging case, close the lid and wait 5 seconds.
3. Open the lid, then press and hold the button on the charging case for 5 seconds.
4. Wait until the orange indicator responds and turns off. The reset is complete and you can pair again.