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Open the battery cover on the back of the BlackBerry. Remove the battery from the phone.

You can perform a hard reset on the BlackBerry Z10 by pressing and holding the Power button on the top of the phone for about 10 seconds.

Reinsert the battery after a few seconds. To be on the safe side, wait for up to 30 seconds and then reinsert the battery into the back of the phone.

Close the battery cover. The BlackBerry should reboot and function normally. You may have to power the BlackBerry back on with the Power button.

Press and hold the Alt key. This method will reset your BlackBerry without having to remove the battery. You cannot perform this method if your BlackBerry does not have a keyboard.

Press and hold the Right Shift key. Continue to hold the Alt key while you hold the Shift key.

Press and hold the Backspace/Delete key. Make sure you are continuing to hold the Alt and Shift keys while you hold the Backspace/Delete key.

Wait for the BlackBerry to reset. When this happens, you will see the screen turn off. You can now release the keys. It may take a few minutes or more for the smartphone to return to its normal settings.

Open the Options on your home screen. Performing a factory reset, or security wipe, will remove all of your personal information and reset the phone to the state it was in when it came out of the box.

Select Security Settings. In the Security Settings menu, select Security Wipe.

Choose what you want erased. Check the boxes for each of the items that you want wiped from the phone. If you want to completely erase your information, ensure that all of the boxes are checked.

Enter the code. To perform the wipe, you will need to enter the code. Type “blackberry” into the box and then select Wipe.

Wait for the phone to complete the wipe process. Your BlackBerry will reset multiple times during the wipe process. Once the phone has rebooted, your data will be gone.

What is the Blackberry code I need to enter after I restore factory settings?