Unfortunately, it looks like there might be a problem with the card slot of the phone and the connection or something else. If the card is OK with other phones and card readers, everything points to the phone as the device having issues. If you can find somewhere another sd card to test it with your phone, it would be great. This way if the other card is not recognized again, you'll know for sure that there's an issue with the phone itself and you can go ahead and contact customer support to as for a replacement.