Final update:
It works, I simply forgot to ground the EP pad

Well, this is embarrasing. I don't seem to have given the SIP a ground connection.

I'm very sorry for anyone's time I may have wasted, I'll update once I've added a ground wire

Here is the schematic. I can confirm that the power supply is stable.

I can't access the UART right now, but should be able to Monday.

I can't see anything on the USB monitor, even in the wrong boot mode or corrupted previous S3 boards would have some kind of ping when plugged in.

Could it be ...

Hi,

I recently purchased a pack of ESP32-S3-PICO-1 SIPs. However, I cannot establish USB connection with them. I have previously connected to other S3 modules, and I am wondering if there is some issue with the PICO that is preventing me from connecting to it. I have attached an image of how it is ...