Try the following actions to resolve the issue. If the issue persists, proceed to the next troubleshooting step.
Ensure that all plastic screen covers have been removed
You might not have removed the plastic film off the screen; removing the plastic film resolves this issue.
Ensure that the BlackBerry smartphone is fully charged
Also verify that you have not had any issues with charging the device. Some screen issues occur because the battery has not been fully charged. Charging the battery could resolve this issue.
Check the light sensor
You might have an issue with the light sensor under the LCD screen.
To check that the light sensor is functioning, complete the following steps:
Check the backlight settings
The backlight on the LCD screen might not function correctly.
To change the backlight settings, complete the following steps:
Check the contrast
Change the contrast and see if this solves the issues you are having. You can set the color contrast of application interfaces, menus, and dialog box to Normal, Grayscale, or Reverse Contrast.
To change the color contrast, complete the following steps:
Update the BlackBerry Device Software
You can download the latest version of Blackberry Device Software from www.blackberry.com/update. Follow the instructions on the screen to download the latest version currently available from your wireless service provider.
If this issue is still not resolved, follow your wireless service provider's procedures to service or return the BlackBerry smartphone.
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