By locking the screen, you can help prevent your BlackBerry device from sending accidental messages or pocket dialing. Locking your device doesn't disable alerts for incoming calls or messages.
Looking for a simple way to help protect your BlackBerry device data and prevent unauthorized use of your device? You can set a password so that you can lock your device when it's in open view or not in use.
If your BlackBerry device uses BlackBerry Balance technology to separate your work and personal activity, you can lock your work space and continue to access personal files, personal apps, and personal data on your device.
Take care to remember your work space password, as it can't be reset or recovered. When you exceed the number of allowed attempts to enter your work space password, your work space and all of its contents are deleted.
Your device might be network locked which allows your device to make a mobile network connection with only your current service provider. For example, if you want to use a SIM card from another service provider, you might need to enter an unlock code.