How to: Unlock external SD Card writing for all apps in Q372

In Android 4.4 "Kitkat" (API 19) Google has changed the default permissions for the external SD Card (usually microSD). Since that Android OS version third-party apps have no more access to write on the SD Card. It's a bit problematic, because now you might not be able to use your favourite Files Manager to move or copy files on the external storage.

procedure-

Note: root required!

1. Start up your device normally and wait for the system to be fully loaded.

2. Open Root Explorer and make sure it runs with superuser permissions.

3. Mount your system partition as R/W (Read/Write) to perform any changes.

4. Navigate to the /system/etc/permissions/ folder and look for the platform.xml .

5. Copy the platform.xml file into the same location as platform.xml.bak file.

Open the platform.xml file with any text editor on your device and search for the following line:

<permission name="android.permission.WRITE_EXTERNAL_STORAGE">

looks like -

6. Now you need to add a 3rd GID (Group ID): <group gid="media_rw" /

looks like -

Using Root Explorer or any other Files Manager of your choice make sure that the platform.xml file has proper permissions: Owner R-W | Group R | Others R (0644 rw-r--r--).

Reboot your device and enjoy!

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