Device guides for

Nokia Lumia 625

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Sending pictures and video clips from my mobile phone Backing up the phone memory on my mobile phone Changing my mobile phone PIN Checking data usage on my mobile phone

Getting started

Basic functions

Calls and contacts

Messaging

Office and leisure

Connectivity

Global online services

Troubleshooting

Specifications

Turning my mobile phone PIN on or off

If you want to protect your SIM against unauthorised use, you need to turn on your PIN protection. Once done, it needs to be keyed in when you turn on your mobile phone.