KinCony ESP32-S3 Core Board ESPHome yaml for home assistant

[AshS]

1: hold on the DW (download ) button.
2: power on for your KinCony S3 board.
3: remove your finger

then board will enter bootloader, you can download now.

1. S3 board MUST work with power supply, can you change to DC12V? can't only work with USB-C cable. the USB not power for the PCB.

2. do you have hold on the S2 button on the photo?

right step is:

1. power off S3 board.
2. hold on S2 button (not release your finger)
3. power on S3 board.
4. release your finger.
5. connect USB-C cable to your computer.

Yes, I am using the correct button.

I have many similar devices. The boards are faulty.

The spec says 9-24V not 12V specifically. 9-24V See screenshot.

my means , you can test with DC12v power . if you have tried different usb-c cable also can't work.
tell us your order number, where you buy from, we will check then feedback to you. maybe need replace ESP32-S chip.

My replacement board have arrived.

I'm sorry to say that I can't connect to these either.

I have checked the voltages at R6 and R4 and also the S1 and S2 switches and all seem to be OK as per the schematic.

This is really frustrating. I am flash ESP32 dev board every day without issue.

What else can we check to get some firmware onto your boards. They are just not going into DFU mode.