The board has always had the fault, I added a resistor to R2 as a pull-up. The board seems to work well but the current draw is incorrect because there is essentially a pull-up fighting a pull-down perpetually. Glad to trade it out with a fully functional dev board if it will do you some good. How d...

If anyone has an ESP32 which doesn't work without an external IO0 pullup and is prepared to send their hardware back to us to investigate, please Private Message me here on the forum. We can compensate with replacement module(s). I have a V3 ESP-WROVER-KIT that I have been getting the HSPI 0x1000 e...