my camera will not work at all, can't switch from photo to video ,  top of the screen show ___..___ for all shutters etc etc N/A ,   need some help here thank you

Hello there Picanoc Jack. I am sorry for the trouble this has caused and thank you for reaching out. May we please know what is the model of the mobile device that you are using please and can you please post a screenshot of the said issue for us to be able to see and can properly assist? Thank you.

At 75  years old I am not sure that I was successful at downloading the screenshot  thank you.

Ok found my problem,  it was my Sd card, put another one in and now working, thank you for your help.

found out my problem was with the sd card. thank you