I believe the crashes were due to a missing config:
CONFIG_ESPTOOLPY_OCT_FLASH=y

You can find more useful info here: https://forums.adafruit.com/viewtopic.p ... 68#p969668

Actually, loading the official pre-built tinyuf2 of esp32s3-devkitc-n32r8 from https://circuitpython.org/board/espressif_esp32s3_devkitc_1_n32r8 on a real devkitc board brings the very same result: (same as above, copying the last lines only:) I (300) spi_flash: detected chip: mxic W (304) spi_flash...

I have a simple custom board very similar to devkitc , based on ESP32-S3-WROOM-2-N32R8V | Flash: 32 MB (Octal SPI) | PSRAM: 8 MB (Octal SPI) not identical because I have only one USB connected to the UART, instead of two in the devkitc, and no neopixel hardware. I tried for two days to build an tiny...

I'm trying to use the latest ESP32-S3-DevKitC-1 v1.1 (https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/hw-reference/esp32s3/user-guide-devkitc-1.html) but platformio (as well as other frameworks) only supports ESP32-S3-DevKitC-1-N8 (8 MB QD, No PSRAM): https://docs.platformio.org/en/lat...