WRXTASY, THANK YOU for such detailed answer!
So I guess I'm out of luck turning C2 on with IR.
Any hardware solution like RemotePi exists for C2?
(I would buy RPi3+RemotePi, but it struggles with 1080p x.265 )
My setup is somewhat special, I have PC Monitor built into a wall, and all hardware sits behind it, only IR sensor from IR-repeater sticks out.
Leaving it on 24/7 is not an option, unfortunately. Monitor is always ON, it goes into sleep when the Libreelec device is turned off.
So for now I'm planning to pull a trigger on Minix U1 (but wanted to go with C2).
Any other options (budget ~$80-$100)?
The main requirement - turning the device ON via INFRARED remote.