I accidentally shorted my pi's (3 B+) 3.3V and 5V GPIO-Pins. I was curious how to repair it and found this helpful answer. So I reworked the pi as described: Removed the broken MXL7704-R3, soldered a new one and checked the voltages. They are as indicated in the image (1.2V 3.3V, 1.8V and 1.2V). To i guess i successfully replaced the MXL7704. But still, the Pi doesn't boot...
What are other typical faults that i could check and maybe lead to a repair of my Pi?