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 How come the files in my memory card are corrupted? I cannot access the Wi-Fi SD card when using Personal Hotspot. Why did my Wi-Fi SD card fail to update firmware or have Wi-Fi connection failure? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started