IR sensor blinks twice

[Cata]

Hi. I come back to the ir sensr that uses before and when connect and turn on the power the led only blink twice. Can i do something?

[number40fan]

Should blink 4 times.

[dc42]

Can you confirm that you have it connected to the Z probe input, and you have type 1 selected i.e. M558 P1 in config.g?

[Cata]

Yes all. Finally i unplug, reset and plug again, works now

Thanks