However, I can point you to legitimate sources where you might find or leaked schematics for repair purposes:
Overall, the Nokia 8.1 schematic diagram provides a fascinating glimpse into the phone's internal workings and design. It highlights the complexity and sophistication of modern smartphone design and manufacturing. nokia 8.1 schematic diagram
He plugged the board into his DC power supply. The needle jumped. Not to the terrifying "short" position, but to a healthy, pulsing 0.6 amps. The heart was beating. However, I can point you to legitimate sources