My Hifiberry Digi appears to be DOA. I have tried your image and aplay -l returns no soundcards. There is no sign of life from the card and a quick grep of dmesg returns:
snd-hifiberry-digi snd-hifiberry-digi.0: ASoC: failed to instantiate card -1 snd-hifiberry-digi snd-hifiberry-digi.0: snd_soc_register_card() failed: -1
snd-hifiberry-digi: probe of snd-hifiberry-digi.0 failed with error -1
Can you advise of return arrangements please.