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[Help] KC868-A16 stopped working with ESPhome - Printable Version

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+--- Thread: [Help] KC868-A16 stopped working with ESPhome (/showthread.php?tid=8414)

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[Help] KC868-A16 stopped working with ESPhome - johnsmith8439 - 08-03-2025

Hello,

My KC868-A16 stopped working with ESPHome. There is power, but there is no network connection. I can still flash directly with USB-C port.

Here is the esphome logs:

RE: [Help] KC868-A16 stopped working with ESPhome - admin - 08-03-2025

if you download KCS v2 firmware, whether work well?

RE: [Help] KC868-A16 stopped working with ESPhome - johnsmith8439 - 08-04-2025

(08-03-2025, 11:04 PM)admin Wrote: if you download KCS v2 firmware, whether work well?

KCS v2 firmware also doesn't work, there is no network connection. In the esphome logs, there is this error:

Code:
[00:36:08]assert failed: s_prepare_reserved_regions memory_layout_utils.c:104 (reserved[i + 1].start > reserved[i].start)
[00:36:08]
[00:36:08]
[00:36:08]Backtrace: 0x4008326e:0x3ffe31a0 0x4009025d:0x3ffe31c0 0x400957d9:0x3ffe31e0 0x4013eecf:0x3ffe3300 0x4013eb11:0x3ffe3730 0x4013ece3:0x3ffe3be0 0x4013d517:0x3ffe3c00 0x4013d552:0x3ffe3c20 0x40082a8a:0x3ffe3c50 0x4007966a:0x3ffe3c90 |<-CORRUPTED


RE: [Help] KC868-A16 stopped working with ESPhome - admin - 08-04-2025

if ethernet can't work, can you re solder the LAN8720A chip? it beside ethernet port.

RE: [Help] KC868-A16 stopped working with ESPhome - johnsmith8439 - 08-05-2025

(08-04-2025, 11:39 PM)admin Wrote: if ethernet can't work, can you re solder the LAN8720A chip? it beside ethernet port.

I don't think it is the ethernet. Wifi also doesn't work. And programmed functions that normally work without network connection also don't work.

I think it is the error I posted above.

RE: [Help] KC868-A16 stopped working with ESPhome - admin - 08-05-2025

after downloaded KCS v2 firmware, WIFI also can't work?

RE: [Help] KC868-A16 stopped working with ESPhome - johnsmith8439 - 08-05-2025

(08-05-2025, 10:50 AM)admin Wrote: after downloaded KCS v2 firmware, WIFI also can't work?

Yes, WIFI also doesn't work with KCS v2.

RE: [Help] KC868-A16 stopped working with ESPhome - admin - 08-05-2025

take photo of your setting of ESP download tool i want to see how you download KCS v2 firmware.

RE: [Help] KC868-A16 stopped working with ESPhome - johnsmith8439 - 08-09-2025

(08-05-2025, 11:10 PM)admin Wrote: take photo of your setting of ESP download tool i want to see how you download KCS v2 firmware.

Here, and it finishes successfully. There is no AP from the board after download.

   

RE: [Help] KC868-A16 stopped working with ESPhome - admin - 08-09-2025

after downloaded firmware, MUST re power on of your board. then use ethernet cable firstly, login by web browser, set the wifi to STA mode, input your router's ssid and password.