Here are some related articles you can follow. They provides many recovery and backup ways for Samsung users. You can choose one you fancy.
If you have back your Samsung data up somewhere like Google account, you can directly recover from them. If not, you may need a data recovery tool.
Android Phone Recovery
is a good choice. It offers users a simple and safe way to recover lost Viber messages, contacts, text messages, photos, videos, audio, WhatsApp messages, etc from Android phone internal memory.
As a specific Android data recovery software, this program can recover deleted files for most popular Android brands including Samsung, HTC, LG, Sony, Motorola, ZET, Huawei, etc. Also, it is compatible with all versions of Android OS, including the latest Android 6.0 Marshmallow. Hot devices like Samsung Galaxy S6, S5, S4, Note5, Note4, Note3, HTC One M9, M8, LG G4, G3, Sony Xperia Z5, Z4, Motorola Droid RAZR, etc are all well supported.
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