picofly oled switch shutdown/reboot random black screen freeze

Stranding

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I just hacked my Switch using the RP2040 chip. Every time I restart or shut it down, there is a high chance of encountering a black screen, which appears to be a freeze. Pressing the power button doesn't elicit any response, and the chip's LED remains off. I need to perform a 10-second long press of the power button to force a restart, which then turns on the LED. My RP2040 firmware version is 2.73, but after a forced restart, the firmware rolls back to version 2.67. Does anyone know what could be causing this issue?

The chip looks something like the image below.
 

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