BlackBerry Z10

Step 1 of 5

Find "Security Wipe"

Slide your finger down the display starting from the top edge of your phone.
Press Settings.

Step 2 of 5

Find "Security Wipe"

Press Security and Privacy.

Step 3 of 5

Find "Security Wipe"

Press Security Wipe.

Step 4 of 5

Restore factory default settings

Press the field and key in blackberry

Step 5 of 5

Restore factory default settings

Press Delete Data.
Wait a moment while the factory default settings are restored.
Follow the instructions on the display to set up your phone and prepare it for use.