Set Auto Screen Lock (Screen Timeout)
Android devices can be set to automatically turn off the screen after a period of inactivity. This feature helps save battery and improves security.
📱 Steps

• Open the Settings app.

• Go to Display (or Device tab on some models).

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• Tap Sleep, Screen timeout, or Screen off time.

• Choose how long the screen stays on without activity.

⏱️ Common options:
15 seconds, 30 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, 30 minutes

💡 Notes:

• Shorter times (15–30 sec) save more battery but may be annoying.

• Longer times (5–10 min) use more battery.

• This setting controls only screen timeout. Lock delay is managed separately in security settings.

Set Pattern / PIN / Password Lock
This protects your phone from unauthorized access.
🔐 Steps

• Go to Settings > Security or Biometrics & Security.

• Tap Screen lock (or Device security, Lock screen).

• Choose one:
  🔸 Pattern: draw on a 3×3 dot grid.
  🔸 PIN: 4–16 digit code.
  🔸 Password: use letters, numbers, symbols.
  Additional options: fingerprint, face recognition, iris scan.

🛡️ Extra Settings:

• Lock after screen turns off.

• Lock screen message.

• App/device policies may enforce screen locks.