<t>Maybe I didn't explain good enough.<br/>
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I first manufactured a board. It had the RX and TX pins messed up. But the ESP32 booted, and was sending some messages after booting.<br/>
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I then manufactured another board. Apparently, with the same schematic (only the RX and TX changed). And ...

Hello there!

I have a custom board, with an integrated ESP32-P4. Despite powering the board, the IC is not consuming any current and it's not sending any message via the UART interface.

Attatching the schematic.

I also have a really similar board (same schematic, but I messed with the RX and TX ...

Hello!

I have designed a custom board using an ESP32-S3. It's the first one that I've designed with an external flash, all the other standalone-chips I've used had an internal flash.

Problem is that when I try to upload an script, I get the following error:
esptool.py v4.6
Serial port COM5 ...

Thanks for your reply!

As far as I could check, power supply seems Ok. Don't have an oscilloscope to check, but multimeter is not detecting any voltage drop when I try to upload the script. Voltage remains the same at 3,35V.

Also tried to power the PCB with an external power supply. Using a big ...

Hello,

I am trying to upload a code to an ESP32-S3, placed in a custom board. Problem is that I can't upload ANY code (even if it is only a BareMinimum example). If I try uploading the code, I get the following errors (they keep changing from one to another):

A fatal error occurred: Guru ...

I have made a custom-made PCB, using an ESP32 as its main brain. I have copied nearly all the schematics refearing to the USB-UART converter from this board:

https://docs.espressif.com/projects/esp-idf/en/stable/esp32/hw-reference/esp32/get-started-devkitc.html

When I try to upload some dummy ...