> ## Documentation Index
> Fetch the complete documentation index at: https://support.customtypeone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Alerting When Not Expected

> SugarPixel Mini/Classic alerted when you didn't expect it to

<Info>
  **Start here:** make sure the SugarPixel app is up to date in the App Store or Play Store, and that your SugarPixel Mini/Classic has the latest firmware installed. See [Firmware Update](/sugarpixel-mini-classic/firmware-update).
</Info>

<Steps>
  <Step title="Check the No Data alert">
    The **No Data** alert fires when no new reading arrives within the time you set, even if glucose is in range. CGM readings sometimes arrive a few minutes late, so a short No Data time can alert when only a few readings are missed or delayed.

    In the app, open **Alert Settings** and check the **No Data** time. 30 minutes works well for most people.
  </Step>

  <Step title="Snooze it, then check which alert it was">
    Next time it alerts, press the button to snooze it, then open **Remote Snooze** in the app. The active snooze shows which alert fired — **Low**, **High** or **No Data**.
  </Step>

  <Step title="Check alert settings">
    In the app, open **Alert Settings** and confirm the **Low** and **High** thresholds are what you intended.

    Display colors use their own ranges in **Display Options**, so the color on screen doesn't tell you whether a reading has reached an alert threshold.
  </Step>
</Steps>


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