KC868-A16 v1.6 – relays 9–16 not working in ESPHome

[dilo@interia.eu]

Hi,

I use KC868-A16 (version 1.6).

I flashed ESPHome and I can control relays 1–8 correctly.
But relays 9–16 are not working.

I2C scan shows:
0x21, 0x22, 0x24, 0x25

PCF8574 at 0x24 works fine.
PCF8574 at 0x25 is detected but relays don’t respond.

I tried different pin mappings but still only first 8 relays work.

Can you provide correct ESPHome YAML for this hardware version?

Thank you.
I can provide logs or photos if needed.