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Tiny Alarm board after flashing seems to no longer working - Printable Version

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Tiny Alarm board after flashing seems to no longer working - algaema - 06-12-2026

Hi Kincony,

I have tried to flash newer version firmware (tried KCS_KC_TA_V3.25.0.zip) from a Mac. Tried multiple methods, including the use of a Windows VM with the official tool, and web.esphome.io. But while both tool reported success, when I turn off and on the board it is not able to respond on network. I have even tried to use the method of removing power, pressing the DW button, and then attaching the power, and then used the official tool to copy firmware using a low (115200) baud rate, while the tool has reported success, after reset the board it is just not responding on network (I can verify that on the switch statistics, in which the "bytes sent" in switch has high values, however "bytes received" in switch is always showing 0, indicating that the Tiny Alarm board is not responding any packet at all. 

I have also tested to use USB C to USB A cable instead of a USB C to USB C cable as I see the youtube video is using one of that. 

May I ask how is there a way to troubleshoot a ESP32S3 board boot up message to see if the firmware is correctly copied?


RE: Tiny Alarm board after flashing seems to no longer working - admin - 06-13-2026

can you take a video how you downloaded firmware.
if download successfully, you can use kincony scan device tool to find the ethneret IP address, it work by DHCP mode.
here is KCS v3 online guide: https://www.kincony.com/how-to-use-kcsv3-firmware-esp32-board.html


RE: Tiny Alarm board after flashing seems to no longer working - algaema - 06-13-2026

I have borrowed a Windows laptop to test, to avoid possible issues with Mac. 
It seems the upload looks like working fine as in the video 
However, as this Windows laptop does not have ethernet port, I have to use the USB ethernet dongle, which seems to be unable to show inside the UDP scanning tool. 
Anyway, I have checked that there is no data coming out from the ethernet card after power off and on of the Tiny Alarm board. After reconnecting the Tiny Alarm board to the switch, it is also unable to get an IP. Also, I cannot see there is any wifi SSID coming on this board as well. Just seems like the whole network stack is gone.


RE: Tiny Alarm board after flashing seems to no longer working - algaema - 06-13-2026

Here is the video:
https://vimeo.com/1200959033

Scanning does not work as the tool cannot detect usb Ethernet dongle.


RE: Tiny Alarm board after flashing seems to no longer working - algaema - 06-13-2026

Borrowed a windows laptop to do the test.


I have shot a video in Vimeo but cannot put in the post here. Now removed the https header to try:

vimeo.com/1200959033

Scan tool does not work as I am using usb Ethernet dongle.


RE: Tiny Alarm board after flashing seems to no longer working - admin - 06-14-2026

in your video , download firmware is correct.
after downloaded, re power on of your TA. then use network detect ip by this way, do these steps:
[Image: KinCony_scan_device.png]

if you can't send video file, you can send to whatsapp number: +86-15381188302


RE: Tiny Alarm board after flashing seems to no longer working - algaema - 06-14-2026

Unfortunately, after resetting the power of the TA, from wifi there is no SSID broadcasted. Thus I cannot connect via Wifi. For ethernet, in the current version of Kincony scan tool, there is no way to select a USB Ethernet dongle (the list only has the wifi adapter). As my laptop has no ethernet port, the only way I can connect via ethernet is to make use of a USB ethernet dongle.


RE: Tiny Alarm board after flashing seems to no longer working - admin - 06-14-2026

after downloaded firmware and re power on. do you have seen wifi hot spot by TA?
can you add whatsapp number: +86-15381188302 we will help you, it's easy to talk.