Nintendo Switch Lite Blue Screen | Best way to reflow CPU

Hello. I just got a console that has the blue screen of death.

I read in a previous post that someone got it working by heating the for about 2 minutes with a heat gun.

First question, I was wondering what chip I need to heat up. It is the NVidia Chip that is circled in yellow on the second photo? Are there any other chips I need to heat up?

Second question, do I just heat it up and not touch the chip, or do I wiggle the heated up chip?