This can happen if you accidentally move or resize an app.
If you long-tap an icon, the options you would typically be able to select are dimmed.
If you venture to make any changes, you will get a prompt to turn off the lock screen.
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Long-press an empty space on the Home screen, or swipe down from the top of the screen.
If you long-pressed on the Home screen, tapSettings.
If the notification shade is open, tap theSettingsicon and then selectHome screenfrom the list of options.
Tap the toggle next toLock Home screen layoutto clear it (off means it’s unlocked).
Why Would You Want Your Home Screen Layout Locked?
Locking your Home screen has been around since the days of Android Pie.
This feature is not unique to Samsung.
Some other launchers and OEM skins include this ability.
The main reason you want to lock your Home screen layout is to avoid accidentally moving or removing icons.
Sometimes, widgets can be temperamental or easily resized, which can throw off the rest of your setup.
Bottom line, it’s annoying to go searching for an icon when you might’t find it.
Locking your Home screen is an excellent way to prevent that.
Another reason might be to helpfix a slow Samsung tablet.
This could make your unit run more smoothly.
The only difference is at Step 3.
If the toggle is engaged/on, then it means the Home screen is locked.
At the very least, it could save you some frustration when you might’t find thoseawesome appsyou just downloaded.