Q: When connected with the app, he data synchronization is finished but the bracelet time display is still incorrect?

A: Reset the bracelet and try the data synchronization again


Q:After the bracelet is connected with the app, why does the bracelet not show caller ID with an incoming call?

A: ANDROID PHONES: After the app is connected with the bracelet, please allow Zeroner access calls, SMS, contacts and keep Zeroner running in the background. If there is security software on your phone, set the software to trust Zeroner.

IOS PHONES: Please restart your phone and connect the bracelet again. When connected please wait until the phones Bluetooth paring request pops up and click pair, the caller ID display function will then work.


Q: The bracelet icon shows the Bluetooth was connected, but the app cannot sync data?

A: Generally it is caused by the phones Bluetooth. Please close out of the app first, restart the Bluetooth and re-pair the watch. If the above step does not work, please restart your phone and try again


Q:Why does my bracelet lose connection with my phone frequently?

A: Please check if your phone or other security software sets Zeroner as a trusted app or not. If not, please set it as a trusted app and try again.


Q: I can't charge my watch/ bracelet and it doesn't power on, what should I do?

A: If this is the first time you have charged your watch/ bracelet, please use the adapter to power it, charge it for more than 3 hours, then press the button to start it; If you have not used the watch/ bracelet for a long time without charging it, the battery would have entered the UVP function. In this situation, you need to activate the battery before using it. (You can just go to a phone repair shop to activate the battery).


Q: Why can't I connect with Bluetooth?

A: 1. If the phones Bluetooth version is lower than the watch's/ bracelet's, they will not be able to pair 

     2. If the phones Bluetooth version is equal to or higher than the watch's/ bracelet's but is initially unable to pair, then you need to clear the Bluetooth connection history on the phone, scan and re-connect again.




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