Don’t touch it! I’ve been working at a repair shop for a while, leave it unplugged and write down the pin.
If you want more specific advice, let me know the model of the phone. Most phones should power on if the battery is removed and it’s plugged in. I can talk you through data recovery if you want
Broken how? I work at a computer repair shop, and I’ve worked on dozens upon dozens of phones. I have different advice based on if it’s the screen, digitizer, or whatever that’s not working