Long time users of WiFi File Explorer may remember back in the olden days where you could actually write to the SD card in your Android device - crazy stuff, huh? You'll also remember when Android 4.4 was released and ruined that blissful utopia, taking away SD card write access, meaning a lot of file operations in WiFi File Explorer (and other file-based apps) stopped working as they used to, like upload, delete, rename, etc.
Android 5.0 addresses this to a degree and once again allows SD card write access to third party apps, albeit in a rather convoluted way. The user must grant an app access to a particular area of storage using a folder chooser dialog which is presented via the Android OS. I'll take you through those steps in relation to WiFi File Explorer so that you can once again manage the SD card using the app. Remember though, this only applies to devices running Android 5.0+ and the latest version of WiFi File Explorer; it will not fix the issue on Android 4.4 devices.
1. Go to the Settings in the WiFi File Explorer app and click the new SD Card Permissions option. It will show a popup that briefly explains what you need to do: "Select the SD card (the top-level, not a subfolder) from the following file chooser dialog to allow write operations, e.g. upload, delete, rename, etc.". You are essentially choosing an area of storage that you say this app can have permission to write to.
2. Click OK and a folder chooser dialog will now be displayed and for most users its initial state is completely empty, which isn't very helpful or intuitive, like below:
3. At this point you need to go to the menu and tell the folder chooser dialog to show the SD card:
4. Now choose the SD card from the left hand side of the folder chooser dialog, which may be named something different if you have given your SD card a disk label:
5. Finally you must choose the top-level root of the SD card as highlighted below - don't select a subfolder:
7. Now you can back out of the Settings in the WiFi File Explorer app and perform all those lovely write operations on your SD card again using the WiFi File Explorer web interface!
So Google doesn't make it easy and there are certainly a few hoops to jump through, but you should only have to do that once to get yourself where you want to be. A few things to note though:
- This only gives WiFi File Explorer SD card write access, not any other apps;
- If you upgrade from the free version to the PRO version of WiFi File Explorer, you'll need to perform these steps for both versions of the app;
- It should last between reboots, but not if you uninstall and reinstall the app;
- You'll also need to perform these steps should you remove or replace the SD card;
- If you stop being able to write to the SD card via WiFi File Explorer for any reason, just perform these steps again.