Already explained in this topic.
in short: IN2 is on a different channel then IN1 where the main controller chip automatically sends information to when no channel information is added, IN2 needs that additional channel added to it so the main controller chip know it is for IN2.
IN1 can also be a long command if you want, but it is just not necessary.
1 Like
Thank you for explain 
Hi. I had a similar problem today when I tried to re-add my Smart Implant in unsecure mode.
I did not find a software fix for the problem but after deleting the device and Connect again, the problem was fixed.
