Ever since I complete the update to my LG G3 to Marshmallow my Micro SD card has stopped working. Shortly after the update I was getting a message that the SD Card has been ejected but now the card does not show up in File Manager. What can I do to activate the card again. I like saving photographs to the card. I've read on line that Marshmallow allows you to merge external memory with internal memory. Do you suggest I do that and if so what is the process to set that up?