After trying each of these steps, test to see if the issue has been resolved before moving on to the next step.
- Turn off your device and then turn it back on.
- Make sure that the perceived stains are not caused by a protective screen film or case used with the device. Remove any such accessories to make sure that there are stains on the display.
- Use the Tests feature in the Support app to determine if the stains are caused by one or more missing or odd-color pixels.
- Check if there is a software update available for your Xperia™ device, find and tap Settings → System or About phone → Software update → SYSTEM.
- Perform a factory data reset.
Note: Back up all personal data before performing a reset. All data in the internal memory is overwritten during a factory data reset, but content on an external SD™ card is kept. - If colored stains or tints still appear, contact us.
Detailed instructions
Run a display test
Android 8.0
- Find and tap Settings → System → About phone → Support. If this is the first time you start Support, tap ACCEPT to accept the privacy policy.
- On the
tab, scroll down and tap Display, and follow the on-screen instructions.
Android 6.0, 7.0, 7.1 or 7.1.1
- Find and tap Settings → About phone → Support. If this is the first time you start Support, tap ACCEPT to accept the privacy policy.
- On the
tab, scroll down and tap Display, and follow the on-screen instructions.
Android 5.0 or 5.1
- From your Home screen, tap the Application screen icon.
- Find and tap Settings → About phone → Diagnostics.
- Swipe left or tap TEST.
- Tap Display.
- Follow the on-screen instructions.
Perform a factory data reset
Note: Do not interrupt a factory data reset procedure to avoid permanently damaging your device.
Android 8.0
- Back up any important data saved on your device's internal memory to a memory card or other non-internal memory. If you have any encrypted files stored on an SD™ card, you should remove the encryption to ensure you can still access them after the reset.
- Find and tap Settings → System → Reset.
- Tap Factory data reset → Reset phone.
- Draw your screen unlock pattern or enter your password or PIN to continue if required.
- To confirm, tap Erase everything.
Android 5.0, 5.1, 6.0, 7.0, 7.1 or 7.1.1
- Back up any important data saved on your device's internal memory to a memory card or other non-internal memory. If you have any encrypted files stored on an SD™ card, you should remove the encryption to ensure you can still access them after the reset.
- From your Home screen, tap the Application screen icon.
- Find and tap Settings → Backup & reset → Factory data reset.
- Android 5.0/5.1: Mark the Erase internal storage checkbox if you want to erase data such as pictures and music on the internal storage. This does not affect the content on the SD™ card.
- Tap Reset phone/tablet or Erase everything.
- Draw your screen unlock pattern or enter your password or PIN to continue if required.
- To confirm, tap Erase everything.
Note: When you perform a factory data reset, your device will not revert to an earlier Android software version.