Where do I get this element from? (No backlight - motherboard issue)

Hi, I f*cked up.

I bought a supposedly dead IPhone 7, after some investigation i found out that it works just fine, but there’s no backlight. So of course like an idiot I bought a new screen without checking if any of the screen connectors are shorted. After installing the new screen and feeling like a big dum dum for a few minutes I found out that this connector is shorted

and after checking where could lie the problem i found this component

on the other side of the board. Now I don’t have a clue where i could find a component matching this one and even if I had the access to a similar one I have no clue what to search for, is it a resistor or a capacitor or a chip of some sort i have no idea (don’t flood me with some technical terms I barely even started to learn all of it). To anyone offering assistance I would be very grateful.

Edit:

I think I found what it’s called

Edit v2:

So I think I found the issue.

This little guy FL3903 is shorted (both sides show an open line to TP0410 while only one side has to have an open line there, I think …). I think it can be caused by a bad U3701 chip or a bad FL3903 chip. I don’t know how to check which one it is but I’m betting on the U3701 chip because there’s a lot of tutorials on the internet for how to replace them.