Learn how to opt in / opt out of System Manager (Carrier IQ) on the Sony Xperia Z. System Manager makes it easier for T-Mobile to provide support for your device.
- From the Home screen, tap the Applications icon.
- Scroll to and tap Settings.
- Scroll to 'PERSONAL,' and then tap Backup & reset.
- Tap Collect Diagnostics.
- Select or clear the Allow Diagnostics check box to opt in or opt out.