Answer of your leaving message
You say that iCam HD can not support 64 GB MicroSD card.
Does it support any MicroSD card?

by David Eldon

Dear David, thank you for the mail.
Please use Amaryllo app – Setting – Format to do the formatting.
Be kindly reminded, this formatting is applying special partition which is only readable by the camera Timeline on the live view screen. (This kind of special partition needs a special hardware or software to read)

If you like the card content is readable by Windows PC/NB, please apply a 16/32G “FAT32” formatted SD as suggested. ( also more stable and liable )

Thank you