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 are SLC (Single-Level Cell), MLC (Multi-Level Cell) and TLC (Triple-Level Cell) Flash different from one another? I cannot access the Wi-Fi SD card when using Personal Hotspot. Why is my Wi-Fi SD card signal unstable? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started