Press and hold the Power button and the Volume Down button at the same time for a few seconds
Release when the screenshot preview appears or you hear a shutter sound
Use Palm Swipe (if enabled): swipe the edge of your hand across the screen to capture
Use the Screenshot button in the Quick Settings panel: swipe down twice, tap Screenshot
Use the Assistant/Menu option (if available): open the menu, tap Screenshot
Use hardware buttons on some devices: Power + Volume Up (varies by model)
After capturing, tap the screenshot preview to edit, share, or delete
Find screenshots in the Photos/Gallery app or in the Screenshots folder in Files/My Files