In the complete version of Windows Phone 8.1, you might find the screen brightness too dim or too bright at times, not meeting your expectations. If you're looking to quickly adjust this brightness and can't find it on the Quick Settings screen, then follow the instructions below.
Guide to Adjust Screen Brightness on Windows Phone 8.1
Step 1: Navigate to the Settings section.
Step 2: Scroll down and locate the Brightness option.
Step 3: By default, the Auto option here is enabled, which adjusts the brightness automatically based on ambient light conditions, but you may find it unsatisfactory.
Step 4: Switch the toggle under Auto to Off, and at the Level section, choose the brightness level that suits you best.
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Here, we've guided you on how to adjust screen brightness on Windows Phone 8.1 by manually adjusting it. Additionally, explore more articles on Windows Phone like transferring contacts from Windows Phone to iPhone 6 and converting captured photos to PDF files on Windows Phone.
