[axbmcuser]

To all who lost "power on" functionality via MCE-remote from full off state for their haswell NUC: (I have a D54250WYKH)

This solution worked for me:

Instead of openelec i temporarily installed Windows 8.1 to the internal 2,5" SATA drive - installed chipset driver, graphics driver (both maybe not necessary, downloaded from intel), rebooted windows, then installed CIR Nuvoton (infrared) driver (also downloaded from Intel), rebooted again back to windows and then shutdown windows.

After that my IR-port is able again to power on the NUC via MCE-remote from FULL OFF STATE - even after completely removing the power supply for some minutes and removing the windows installation. I now use OpenELEC again and it works! No Windows left...

I know it's strange, but the infrared driver under windows seems the only way to "reinitialize" the IR-port for powering on the device after that function got lost after a hard/cmos reset. The installed Nuvoton IR-driver in Windows seems to set a permanent flag for the IR-port or something similar. Hard to believe but for me a total success.

I got the idea reading the last post here:
communities.intel.com/message/195673

Maybe it helps.

Greets