If you’ve forgotten your BlackBerry ID or password, there are a few things you can do to reset them. First, try entering your email address and password into the BlackBerry ID and Password fields on the main screen of your device. If that doesn’t work, try contacting BlackBerry customer service for help. If you still can’t get into your device, you may need to reset it. To do this, turn off your device and then hold down the power button until it turns back on. Once it’s on, press and hold down the volume up button until you see a menu screen. From here, select “Reset Device.” You’ll need to enter your PIN number if you have one set up and then choose “Reset Password.” Finally, type in your new password and hit “OK.” ..