Before upgrade, when I turn off my tv, the box shuts down, but CEC circuit seems to keep working - after powering back up tv, I see "Odroid C2" device under SmartLink menu and when I choose it, the boards boots up.
Having Odroid C2 (on LE9) I'd be grateful if you could delve some info on how to setup CEC to do the same thing. I'm leaving C2 always on, your approach seems like a much better solution!
Furthermore, I do see that the blue LED has started blinking again, after upgrading today from 8 to 9. Is this a known issue?
EDIT: I see that it is configurable, which is great. I've set it to blink on sd card access, don't know if it could do that thing before.