Silent alarm goes off with a sound

Battery optimization was enabled
  • When battery optimization is enabled, vibrations do not work, so the app is loading the built-in ringtone to ensure your wake up.

    1. Check Settings → Sleep tracking → Battery optimized.

    2. Do not enable Save battery option from the Tracking screen → Stop and save pull up menu → Save battery.

Phone was rebooted
  • When the phone screen is locked after a reboot, the app cannot load any files.

  • The phone rings with the build-in ringtone and vibrates.

Tags: alarm, ringtone