Communication instability error

[infotecnica]

Good morning
I bought two KC868-A16 REV:1.6 cards. However, I can't load the KCS_KC868_A16_V2.2.2.bin firmware, it always gives me an unstable communication error

[admin]

change your USB-C cable.

[infotecnica]

change your USB-C cable.

Thanks for the quick reply, no it wasn't the cable, I then used the V2.2.10 version and it loaded correctly

[admin]

reduce COM baud rate. sometimes change 2-3 cables will work well. many USB-C cable are low quality.