After some tests I found out that the issue was a bad eMMC. To check it I connected screen flat, backlight flat, battery and usb-c cable between board and pc. Then I opened RCM Tegra software and it detected that the console was in RCM mode, this means the board can't read the eMMC, like when you put the console in RCM mode. Other than that the board works perfectly. As I understand it, the eMMC is irreplaceable, so the card is unusable. Or is there a way to recover it even without backup?
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Hi, I'm new in this community.
Hope can learn a lot from you.

THanks

Hello everyone,

I'm facing an issue with a HEG-001 motherboard that is unable to complete the Second-Stage Boot. I'd like to start directly with my conclusion, which is the decision to replace the MAX77621AEWI chip, and understand if it could be a correct evaluation.

Before I dive into the process that led me to this decision, I want to mention that I have a fully equipped lab where I can perform any kind of tests.

Let's begin:

Following some guides online, I tried to understand how the Boot phase of the Nintendo Switch works, and what are the...