Learn how to opt in / opt out of System Manager (Carrier IQ) on the LG Optimus L90. System Manager makes it easier for T-Mobile to provide support for your device.


  1. From any Home screen, tap the Menu key.
  2. Tap System settings.
  3. If necessary, tap the Menu key to switch to list view.
  4. Scroll to 'PERSONAL,' then tap Backup & reset.
  5. Tap Collect diagnostics.
  6. Tap the Allow Diagnostics check box.
  7. Tap Close.