What to do if the Xiaomi Smart Kids Watch still rings when the Do Not Disturb mode is turned on?

The Xiaomi Smart Kids Watch supports turning on Do Not Disturb mode, and this mode supports customized DND periods. Once Do Not Disturb mode is turned on, the watch can only be used to check the time, send an SOS, and check the location.
If the watch still rings when the Do Not Disturb mode is turned on, please refer to the following details:
1. Please check whether [The watch can be used for contacting parents when DND is enabled] is enabled;
2. Please check whether [DND in school] is enabled. If it is beyond the school range, the watch will receive a ringing;
3. Please check whether the ringing time exceeds the customized DND periods;
4. Ensure your watch is running the latest software version;
5. If the problem still persists, please contact the local after-sales service center for further assistance.