touch screen problem

my android2.2 google ideos smartphone trying to unlock by screen lock password but password unlock keypad 7,8 and 9 key and other some area not responding.please advise me how could i unlock my phone

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Since the phone has apparent hardware failures.

You may want to try a hard reset. Check your phone's manual or support site on how to do that.

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If the hard reset doesn't work , you may want to look into a replacement or get a new phone .

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