Hi,
I just bought a Odroid-C1+ and want to install arch on it. I followed the wiki page for C1 and tried the latest image (updated yesterday I believe), and also the older image (generated at Aug 15th). With both image I get a black screen and the chip seems stalled. The blue light was blinking slowly so I guess it went through the boot and something bad happened when the kernel took over. I can use the openelec image made by wrxtasy without problem, so I think the board itself is OK