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Историческую версию Built In File Manager можно получить на Android
Android Встроенный файловый менеджер
Android Built-In File Manager
Compatible with the Android 6.0 Marshmallow or above.
KEY FEATURES:
Copy, Delete, and Move Files and Folders.
Image Preview and Photo Viewer.
Audio and Video Player.
HOW TO USE:
tap the menu button and select "Show internal storage” to see your device's internal storage.