Nokia 300 - Lock Phone and Memory Card

Protect your phone
Lock your phone
Want to stop others using your phone? Create a security code, and
set your phone to lock itself automatically when you're not using it.
Select Menu > Settings.
Set the phone to lock the keys and screen
Select Phone > Security keyguard > On.
You need the security code to unlock the phone.
Set a personalised security code
1. SelectSecurity > Access codes > Change security code.
2. Type in the preset security code 12345.
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