System turns on, shows nintendo logo and turns off (switch lite)

So I recently got this switch lite with no power, turned out it had a missing pad (which tells me this system has been worked on before). After fixing that I also noticed 2 of the capacitors on the APU were gone, so I also replaced those (0201 1UF 6.3V X5R 20%).

Now the system boots but turns off immediately after showing the Nintendo logo for 2 seconds.

I’m new to the switch scene and still have no clue what are the procedures for the diagnosis of these!

Thanks for your help!

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I want to add the fact that the IC chip reads 3-4 volts, so it seems to be fine.

The battery is a bit swollen though. Could that be causing the boot failure?

完成的

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