Sd not recognized

Solution
This will seem silly but... did you drop your phone?

In my experience the only tech that stops working without reason is new tech usually after about 48 hours if it's gonna die. After that it should work.

In your case the issue will likely be down to the card being unmounted. Try turning the phone off taking the card out and outing it back in then power up. If it still can't read it grab an adaptor to put it in a normal size sd card slot and plug it into a computer or if that doesn't work borrow another phone to check. If other systems can use it then it is a phone issue if they can't then your card died. If it is a phone issue it could be as simple as dust in the slot or the slot could be dead. Try blowing it out with compressed air...
This will seem silly but... did you drop your phone?

In my experience the only tech that stops working without reason is new tech usually after about 48 hours if it's gonna die. After that it should work.

In your case the issue will likely be down to the card being unmounted. Try turning the phone off taking the card out and outing it back in then power up. If it still can't read it grab an adaptor to put it in a normal size sd card slot and plug it into a computer or if that doesn't work borrow another phone to check. If other systems can use it then it is a phone issue if they can't then your card died. If it is a phone issue it could be as simple as dust in the slot or the slot could be dead. Try blowing it out with compressed air NOT YOUR BREATH. If it still does not work I would take the phone into a repair shop and have them look at it. Before you go that far however check the card replacing one of them is a lot cheaper
 
Solution