No sound after installing osmc could it because no crystal HD card?

Hello, please help on the official firmware I have sound, after I install newest osmc to the HDD I have no sound volume it turned up I have not pulled out or changed the HDMI lead. Any ideas ?
If I restore the official firmware sound is back again :frowning:

from main menu go settings > Settings > Audio > Output device , and select HDMI. I believe analog is default

Yeah that the 1st thing I tried, Iโ€™m wondering if its because I donโ€™t have a crystal HD card ?

Please check this

OK so this should work on an apple TV or is it just for pi ?