Ever since my phone updated it does not recognize the SD card. Which makes the phone completely useless. If you go to settings/storage under total space and available space it says unavailable. If you go into apps open Files choose SD card it says "Please insert memory card." I have tried every suggestion that I could find on the web to fix this problem. I removed the card reinserted it, I have put in another SD card, I have reset to the factory settings, I have cleared the cache and have done a hard reset. I can't format the card because it doesn't see a card. I have checked the card in my computer it is perfectly operational. I tried formatting the card in my computer this does not work either. I have installed different apps like SD card managers nothing. It makes the phone useless, I can not use the camera or anything that stores to the card, apps that use the card won't work of they won't install. Also because of resetting the phone to try to fix the problem any of the apps I had on the phone are lost. The phone works great now you set it on top of a stack of papers they will not move no matter how much wind there is, that is about all it is good for anymore.