Microsoft Lumia 640 - Set your phone to lock automatically

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Set your phone to lock automatically
You can protect your phone against unauthorized use. Define a security code, and set your

phone to lock itself automatically when you're not using it.
1. On the start screen, swipe down from the top of the screen, and tap ALL SETTINGS > lock

screen.

2. Switch Password to On

, and type in a security code (at least 4 digits).

3. Tap Require a password after, and define the length of time after which the phone locks

automatically.
Keep the security code secret and in a safe place separate from your phone. If you forget the

security code and cannot recover it, or if you enter the wrong code too many times, your

phone will require service. Additional charges may apply, and all the personal data on your

phone may be deleted. For more info, contact the nearest care point for your phone, or your

phone dealer.
Unlock your phone

Press the power key, drag the lock screen up, and type in your security code.
Change your security code

On the start screen, swipe down from the top of the screen, and tap ALL SETTINGS > lock

screen > change password.

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