I have a custom block of MAC addresses for a product containing an embedded ESP32, and am assigning Wifi, Bluetooth, and Ethernet MAC addresses. I understand that only the Wifi MAC address should be burned into the custom slot of efuse, and that the Bluetooth and Ethernet addresses are calculated as...

Yes thank you, that's the purpose of my question.

Thanks, I referenced the boot modes in my post. My main concern was whether the boot mode listed as 0x05 instead of 0x03 was indicative an issue that would prevent booting.

I will check the voltage level of the EN line, but it appears to only be an issue when a programmer is attached and we're attempted to flash/reset via the RTS/CTS.

Out of curiosity, could the changing behavior of GPIO15 cause any issues with boot?

Hello, I have developed a custom ESP32-based industrial sensing platform, and am running into the following issue on a new revision of our main product design. After successfully flashing our ESP32 using a CP2104-based PCB and using the pre-built msys make tools, we are able to boot into the softwar...