Microsoft Lumia 640 XL LTE User Manual page 123

Change your PIN code
If your SIM card came with a default PIN code, you can change it to something more secure.
Not all network service providers support this feature.
1. Tap > > settings.
2. Tap change SIM PIN.
The PIN code can be 4-8 digits.
Find your lost phone
If you misplaced your phone, or are afraid it's been stolen, use find my phone to locate your
phone, and lock or delete all data from it remotely.
You need to have your Microsoft account on your phone.
1. On your computer, go to www.windowsphone.com.
2. Sign in with the same Microsoft account as on your phone.
3. Select find my phone.
You can:
• Locate your phone on a map
• Make your phone ring, even if silent mode is switched on
• Lock your phone, and set it to show a message, so it can be returned to you
• Delete all data from your phone remotely
The available options may vary.
Tip: Set your phone to automatically save its location every few hours. If your phone
runs out of battery, you can still view its last saved location. On the start screen, swipe
down from the top of the screen, and tap ALL SETTINGS > find my phone.
Prevent others from resetting and reusing your phone
On the start screen, swipe down from the top of the screen, tap ALL SETTINGS > find my
phone, switch Reset Protection to On, and type in your Microsoft account credentials.
If you selected recommended settings while setting up your phone, reset protection is on by
default. It prevents a thief from resetting and reusing your phone if your phone gets stolen.
To switch the feature off, switch Reset Protection to Off, and type in your Microsoft account
credentials.
Set up a start screen with selected apps
Let your friends and family members use selected apps on your phone without access to your
own start screen.
1. On the start screen, swipe down from the top of the screen, and tap ALL SETTINGS > apps
corner.
2. Tap Apps, select the apps you allow others to use, and tap
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