my screen is cracked and can't unlock phone password

Take your device to an Apple Retail Store or Apple Authorized Service Provider, or contact Apple Support:

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antdogg49 Said:

"my screen is cracked and can't unlock phone password: how do i unlock my passcode with a broken screen"

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Get a New Screen, then Unlock:

You'd have to get a new screen. and then proceed from there with unlocking it. Be cautious as to where you get the screen. If you get a screen that is not genuine, then you'll get a message saying that is is ungenuine, and it will not go away.