The Software Upgrades may be released from time to time to fix the ongoing software & operations bugs.
Updating the Earbuds to latest version will fix such issues. The process explained the video gives a detailed description how the Software Update is done.
Refer to the video for the same.
The software upgrade will fix the below issues.
※ Earbud connecting but sound not coming
※ Mood light not working or working intermittently (In Supported Models)
※ Sound coming in only one of the Earbuds
※ Not connecting or pairing with a new device
※ Any other erratic functioning behaviour