When all else fails, simply download FoneDog Android Data Recovery onto your computer. It will solve your problems for you, whether or not you were able to back up your phone.
FoneDog is a respected authority in data recovery. We have tools that provide you a safe and secure way to retrieve your lost messages. Plus, it supports the latest Samsung phones including Galaxy S8 and Note 8.
Step 1: Launch
FoneDog Android Data Recovery Tool and Connect your Samsung Galaxy Note 8 to your Computer
Step 2: Allow USB Debugging
Step 3: Select the Deleted Text Messages You Want to Recover
Step 4: Recover text messages from Your Samsung Galaxy Note 8
Completed guide:
Samsung Guide: How to Do A Samsung Text Recovery