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 What should I do if I cannot delete or format my SD/SDHC card due to write protection? Why is my Wi-Fi SD card signal unstable? What should I know before purchasing a Wi-Fi SD card? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started