A free program for Android, by NextApp Inc..

The SDFix: KitKat Writable MicroSD app is a tool that will allow you to access the MicroSD card on your device securely and make it writeable.

It is a simple app, and it is completely free. It can be used on Android 4.4.

How does it work?

You need to install the app and run it.

It will ask you for your root password. If you do not know your root password, you will be prompted to enter it.

After you have entered your password, you will be able to run the up and configure the settings necessary.