Virtually all technological devices fall victim to an occasional frozen screen because they run on an operating system or software that can hiccup and stop working for many reasons. A frozen BlackBerry screen may result from trying to perform too many functions at once or from a network connection error. Perform a soft reset or a hard reset of your hand-held device to fix your BlackBerry smartphone.
Press the "Alt," "Caps," and "Delete" keys at the same time. This will perform a soft reset of your BlackBerry. The BlackBerry device will reboot. If the frozen screen doesn't disappear, proceed to Step 2.
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Locate the "Reset" button on the back of the smartphone (the button may be under the battery cover or on the bottom).
Press the button by using the tip of pin or paperclip. This will perform a hard reset of your phone. No data will be lost.
Power on your BlackBerry device. The frozen screen has been fixed.