bwResponder "txzz3"
I purchased a 64Gb Samsung SD card to expand the memory of the phone.However, I frequently get a message that the card has been removed or is recovering.Sometimes the problem clears itself, other times I have to reboot the phone.It also says "MTP application will restart to prepare SD Card". It then starts listing the restarting/recovering SD card.I eventually replaced it with a Sandisk 16gb microsd "HD" card from Walmart and it is operating fine.I have been reading a lot about people having issues with the 64gb sandisk cards and the Galaxy S4.I wish I had done more research before wasting $50 on what I thought was a good buy!