My iPhone 7 is boot looping after Housing Replacement

Because I am new to repairing small electronics, I was bound to make a mistake just replacing my iPhone 7’s bent housing. This problem did not exist before replacing the housing, so I am wondering what is causing my phone to boot loop until either the battery completely drains itself out, force shutting down the phone via holding only the power button, or disconnecting the battery.

My hypothesis that something went wrong to the logic board when connecting the flex cables for the screen, and that microsoldering may be the only way to fix the problem. This is because recovery mode worked when the phone was plugged to a PC, but the PC cannot communicate to the phone whatsoever, meaning the dock connector isn’t the problem. Though this is a assumption, I assume the problem is within the components in the logic board.