The phone is a Samsung S7 edge, SM-G935A. After a factory reset, is possible to recover memos from Samsung Memo App, using dr.fone Android Data Recovery module? If not please advise which of your module will recover the Samsung Memos. Thanks
Until and unless you have not added any new data on your Samsung Galaxy S7 (because adding new data overwrite the existing data and chances for recovery becomes less), you can apply Android Data Recovery software to restore lost, deleted, formatted memos from any Android phones, including your Samsung Galaxy S7.
For detail information check out: http://www.androiddata-recovery.com/blog/best-way-to-retrieve-deletedlost-android-memo-notes-files
Try pro Android data recovery tool to help you recover deleted memos from Samsung memo app on Samsung S7. First connect it to computer via usb cable, start the Android data recovery tool. A short time scanning later, if the deleted memos can be scanned out, you can get them back.