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Device Diagnostics are information the T-Mobile app collects from your Android device to help identify problems so it can run more smoothly. Learn what is collected and why.

Types of information collected

The Diagnostic Metrics may collect the following from your Android device:

  • Location information
  • Device signal strength
  • System crashes
  • Dropped calls records
  • Battery performance
  • Application and network usage data

Your privacy is very important to us. T-Mobile metrics cannot collect private or personal information, such as:

  • No content of text messages
  • No content of email or voice messages
  • No content from customers’ Internet activity
  • No content of online searches

Diagnostic transmissions are free of charge and do not count toward your T-Mobile data usage.


Uses of the metrics data

As part of our commitment to delivering the best network quality and device experience possible, diagnostic metrics are used for troubleshooting and optimization purposes, such as:

  • Identifying apps that are using too much memory or processing power, which could drain your battery.
  • Recognizing when your device has been using a weak network signal.
  • Returning your device to peak performance.

Note: Information collected is not used for the marketing of third-party products or services, without explicit customer consent. For more information, please review your applicable Privacy Policy:


Turning metrics collection on or off

You can turn metrics collection on or off from the T-Mobile app.

  1. Open the T-Mobile app on your Android device. If you don't have it, you can download the T-Mobile app.  Note: Apple doesn't use the T-Mobile app for diagnostics.
  2. Select More > App settings > Diagnostics.
  3. Select the Agree box to check or uncheck, then select Next.
  4. Choose Accept or Decline for Issue Assist.
  5. Choose Accept or Decline for Personalized offers.

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