Android (root ): As some Android users might recall, Google made a change to the way SD cards are handled in KitKat. Apps now have a very limited ability to store data on the SD card . SDFix removes this limitation for root users.
The app is a run-and-done affair, modifying the way that the WRITE_EXTERNAL_STORAGE permission is handled by the system. From that point on, apps with that permission can read and write to anywhere on the SD card, not just its own siloed folder. It's not the best workaround, and it should be noted that there is always a security concern when you're running apps that modify how permissions are handled. However, if you're one of the people affected by this mild-to-infuriating inconvenience, the trade-offs may be worth it.