Problem flashing firmware

[dolphin78]

Hello, i m new here and maybe i m doing something wrong but i can't flash the KCS_B16M_V3.4.0.bin in my new arrived B16M device.

I have followed the guide indicated on this page "https://www.kincony.com/how-to-use-kcsv3-firmware-esp32-board.html" step by step, but always after a few seconds of starting, the same error appears.

"8-download data fail"

Tips:
Maybe communication instability cuased this error, you can try to reduce the baud rate of download.

And in the rear command window (black window) appears:

test offset :  0 0x0
case ok
test offset :  0 0x0
case ok

Uploading stub...
Running stub...
Stub running...
Compressed 2718032 bytes to 1085371...
[2025-01-03 13:04:58,490][ESP8266Loader_spi[1]][espDownloader.py][line:606][ERROR]: ESP32S3 Chip flash download error esp_write_flash.

   

I'm sure i selected chipType: ESP32S3 on the initial screen, why appears "ESP8266Loader_spi" text? Is something wrong?

I have tried different cables, bauds anb firmware versions and managed to make the process last longer each time and the green bar grow more, but it still gives an error and never finishes successfully.

I don't know what to do anymore.

I have searched the forum but haven't found any case similar to mine.

What can I do, any help would be appreciated.
Thanks in advance.

[admin]

because now the controller is not in "bootloader" mode. you can do as these steps:
1. hold on DW (download) button, don't move your finger.
2. power on of controller
3. release your finger.
4. Then controller enter bootloader mode. download firmware again will be ok.

[dolphin78]

because now the controller is not in "bootloader" mode. you can do as these steps:
1. hold on DW (download) button, don't move your finger.
2. power on of controller
3. release your finger.
4. Then controller enter bootloader mode. download firmware again will be ok.

I did and it worked like a charm.
Thank you very much!

[admin]

ok, good.