Why can't I download files to the micro SD card on my android smart phone (Android 4.4.X) using the WI FI SD APP? Category : Setup / Operation In Android version 4.4 or later, the Third-Party software has no permission to access files in external micro SD cards. Please change the storage path to the phone's internal space. Is the answer helpful? Related Why does my Wi-Fi SD card have no Wi-Fi signal after used for a while on a Nikon camera? Why did my Wi-Fi SD card fail to update firmware or have Wi-Fi connection failure? Why do I see lines on the right of photos after I downloaded photos using the WI-FI SD app? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started