Hi, I received my DAC+ about 3 days ago and haven't managed to get a sound out of it yet.
I am using a pretty standard install of raspbian, and the hifiberry configuration seemed to go well (the only part that was different was the lack of blacklist file on my pi)
Followed the instructions below:
pi@raspberrypi ~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0 
Subdevice #0: subdevice #0
also the green LED has never lit up (only found out it had one after reading some of the other threads on here).
Nearly forgot to add that I have also tried the test image with the same results.