How am I able to make my SD card as the default memory on my Samsung Galaxy S5 since a lot of the apps seem to not be able to make the move from internal memory to external memory on this model.
You can't. If you go settings, apps, and click on an app, some will give you the option to change it to the SD card, but not all of them will. It's up to the developer to enable this option on their app. It's not the model of your phone, it's how the app was written.
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