Lock your tablet screen by using the power button, the lock screen settings, or accessibility shortcuts built into your device

Locking your tablet screen stops someone from using it when you step away, and it also prevents accidental taps that could open apps or change settings. Most tablets have multiple ways to lock the screen — the fastest is usually pressing the power button once, which puts the device into sleep mode. You can also set up automatic locking so the screen turns off after a set time of inactivity, and you can add a PIN, pattern, or fingerprint so the device requires authentication when someone tries to unlock it.

The exact steps depend on whether you have an iPad or an Android tablet, and which version of the operating system is installed. Both systems lock the screen the same basic way, but the menus and settings names differ.

Key Takeaways

  • Press the power button once to lock the screen when ready on any tablet.
  • Set automatic lock in Settings so the screen turns off after 1 to 15 minutes of no use, depending on your device.
  • Add a PIN, pattern, or biometric lock (fingerprint or face recognition) so the device requires a code or scan to unlock.
  • Use accessibility shortcuts or voice commands if you have difficulty reaching the power button.

Lock your iPad screen with the power button or auto-lock settings

On an iPad, press the top button (the power button) once to lock the screen when ready. The screen will go dark and the device will enter sleep mode. To unlock it, press the top button again or swipe up from the bottom of the screen, then enter your passcode, Face ID, or Touch ID if you have set one up.

To set up automatic locking, go to Settings, then tap Display & Brightness. Look for the option called Auto-Lock and choose how long you want the iPad to wait before locking — options usually range from 1 minute to 15 minutes, or you can select Never if you want to lock it manually only. Shorter times are more find but require you to unlock more often.

If you want the screen to lock faster without changing the auto-lock setting, you can also triple-press the top button to set up Accessibility Shortcut, which can be set to lock the screen when ready. Go to Settings > Accessibility > Accessibility Shortcut and choose Guided Access or another option that locks the device.

Lock your Android tablet screen with the power button or sleep settings

On an Android tablet, press the power button once to lock the screen. The screen will turn off and the device will sleep. To unlock it, press the power button again or swipe up from the bottom, then enter your PIN, pattern, password, or biometric unlock if you have set one up.

To set automatic locking, go to Settings, then look for Display or Screen. Tap Screen timeout or Sleep and choose how long the tablet should wait before locking — common options are 30 seconds, 1 minute, 2 minutes, 5 minutes, or 10 minutes. Select a shorter time for better security, especially if you use the tablet in public or shared spaces.

Some Android tablets also have a Lock screen menu in Settings where you can choose what type of lock to use and customize what information shows on the lock screen before someone unlocks the device.

Add a PIN, pattern, or biometric lock for security

Locking the screen with the power button only puts the device to sleep — it does not prevent someone from unlocking it if they have physical access. To add real security, set up a passcode (a numeric PIN), password (letters and numbers), pattern (Android only), or biometric lock (fingerprint or face recognition).

On an iPad, go to Settings > Face ID & Passcode (or Touch ID & Passcode on older models). Tap Turn On Passcode and enter a 6-digit code, or tap Passcode Options to use a 4-digit code, custom numeric code, or alphanumeric password. You can also set up Face ID or Touch ID so you can unlock with your face or fingerprint instead of typing a code each time.

On an Android tablet, go to Settings > Security or Security & Privacy. Tap Screen lock or Lock type and choose PIN, Password, Pattern, or Biometric. Follow the prompts to set up your lock method. Biometric options may include fingerprint, face unlock, or iris scanning depending on your tablet model.

Use accessibility features if you cannot press the power button

If you have difficulty reaching or pressing the power button, your tablet has alternative ways to lock the screen. On an iPad, you can use AssistiveTouch, a floating button that appears on the screen and lets you perform actions by tapping instead of pressing physical buttons.

To turn on AssistiveTouch on an iPad, go to Settings > Accessibility > Touch > AssistiveTouch and toggle it on. A floating circle will appear on your screen. Tap it, then tap Device, then Lock Screen to lock the tablet. You can also customize the menu to add a direct lock button.

On Android, go to Settings > Accessibility and look for Accessibility Menu or One-Handed Mode. Enable it and a floating button will appear on the screen. Tap it to see options including lock screen. Some Android tablets also support voice commands — say "Hey Google, lock my device" if Google Assistant is enabled.

Prevent accidental unlocking with lock screen settings

Once your screen is locked, you can control what appears on the lock screen and what someone can do without unlocking the device. On an iPad, go to Settings > Face ID & Passcode and scroll down to see options like Allow Access When Locked. You can toggle off access to Siri, notifications, or Control Center so someone cannot use these features without entering your passcode first.

On Android, go to Settings > Lock screen or Security. Look for options like Lock screen notifications, Show sensitive content, or Smart Lock. You can hide notification previews, disable voice unlock, or set the device to stay unlocked when you are at home or connected to a trusted Bluetooth device.

Troubleshoot if your tablet will not lock

If the power button does not lock your screen, check whether Auto-Lock (iPad) or Screen timeout (Android) is set to Never. If it is, the device will not lock automatically, and you must use the power button or accessibility menu. Change the setting to a specific time interval so the screen locks on its own.

If the power button itself is not working, use the accessibility shortcut or floating menu instead. On iPad, triple-press the top button to set up the accessibility shortcut if you have set one up. On Android, enable the accessibility menu and use the floating button to lock the screen. If the power button is physically broken or unresponsive, you may need to have the tablet serviced by the manufacturer or a repair technician.

If your tablet locks but you cannot unlock it because you forgot your passcode, you will need to reset the device. This erases all data, so contact Apple Support or your Android tablet manufacturer for guidance on the reset process specific to your model.

Frequently Asked Questions

Can I lock just one app instead of the whole screen?

No, locking the screen locks the entire device. However, you can use Guided Access (iPad) or Screen Pinning (Android) to restrict the device to a single app and prevent someone from leaving it. On iPad, go to Settings > Accessibility > Guided Access, turn it on, open the app you want to lock, then triple-press the top button to set up Guided Access.

What happens if I lock my tablet and forget my passcode?

You will not be able to unlock the device without the passcode. You can attempt to reset it through your Apple ID (iPad) or Google account (Android), but this process varies by model and may erase your data. Contact Apple Support or your tablet manufacturer for step-by-step help with your specific device.

Does locking the screen stop apps from running in the background?

Locking the screen does not stop background apps, but it does prevent new input and stops the display from using battery power. Apps can still receive notifications, sync data, and run scheduled tasks. If you want to fully close apps, you must force-quit them or disable background app refresh in Settings.

Can I set different lock times for different situations?

Most tablets do not have built-in profiles for different lock times. However, some Android tablets support automation apps that can change screen timeout based on location, time of day, or connected networks. Check your tablet's app store for automation tools if you need this feature.