I have two new FTDI boards that I cannot get to work programming an ESP32-CAM, but the -MB board works just fine.
I have been over all the RNL instructions many times, but cannot find the problem. Both boards are 5V and both boards get the same error message “A fatal error occurred: Failed to connect to ESP32: No serial data received.” and “the selected serial port does not exist or your board is not connected.”
Are you connecting GPIO 0 to GND when uploading code?
In some boards your need to press the RST button right after starting the upload.
Check which drivers are used by your FTDI programmer. You’ll usually find that information on the product page.
You may need to install them on your computer.
Tried all of the above, again this morning. No bueno. The FTDI board blinks when I connect it to the computer, but when the IDE tries to connect to the ESP after compilation, nothing happens.
I’m using a Sparkfun FTDI and installed the drivers they link on their site again this morning, but same result.