[Q] Lumia 1020 with partial power. please help.

I bought this Lumia 1020 off eBay with a broken screen. When I got it the LCD didn't work so I ordered an all in one piece thinking that would fix everything. I put the screen in last night plugged it into the charger and the windows home button blinked until it buzzed but the screen never lit up. I can hold the camera button and the camera will make noise and the flash will go off but nothing else. I can push the screen buttons and they will vibrate but the screen wont light up. I plugged it into the computer and saw that I was charging and had 20% battery power and climbing. I tried to use the windows phone desktop app but it just told me the phone was locked. I took the phone back apart and realized the proximity sensor ribbon was separated from the front camera ribbon. Could the phone shut the screen down if it doesn't get a signal from the proximity sensor? Any and all help is appreciated and thank you in advance.

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