GPIO2 must also be either left unconnected/floating, or driven Low, in order to enter the serial bootloader.


Thanks, I put a resistance between GPIO2 and GND and problem solved, although I do not know why, I have worked with ESP32 before and had never had this problem, in fact on the shield the ...

We design a hardware that will be controlled by the ESP32 WROVER, the ESP32 goes in an external shield, when I connect the shield directly to my computer, I can normally enter the download boot:

rst: 0x1 (POWERON_RESET), boot: 0x23 (DOWNLOAD_BOOT (UART0 / UART1 / SDIO_REI_REO_V2))
waiting for ...

I'm Using WifiClient.h, but when I declare a task for Core 0, all works fine ultil I make a wifi request, in the line:
char status[32] = {0};
client.readBytesUntil('\r', status, sizeof(status));
the core 1 stops and doesn't start again.
When i don't declare the task for Core 0 there isn't problem ...