First use a broken android data extractor tool to help you extract data from your dead S7. Then transfer the extracted data contacts, text messages, photos, videos, etc to your other Samsung mobile phone.
Want to transfer data from a broken Samsung phone to another? What you need to do is recoverring data from deadSamsung phone firstly.
You not only can recover data from broken Samsung via free broken Android data recovery, but also restore data from borken Samsung phone with Samsung Kies or Smart Switch.
Here is the two methods to recover data on Samsung with broken or black screen.
Way 1: Recover Lost Data from Broken Samsung Galaxy Phone with Kies
Then connect the phone to computer and turn on USB debugging. This time, rooting is not a must. Once the program detect the phone, then select the files you wish to backup. Finally, all selected items will be saved on your computer. You can restore the data once the phone was repaired.
Way 2: How to Recover Data from Damaged Samsung Galaxy Phone with Cloud Backup
Since the introduction of Dropbox, the leading cloud storage service provider, cloud storage is preferred way to backup phone data comparing to the traditional backup method. So if you ever backed up your Galaxy phone with Dropbox, Samsung cloud, Google Drive or OneDrive, then it is a simple task to restore deleted files from previous backups.
Even the phone was completed dead, you can restore the data on the new phone from the cloud backup. What you need to do is only installing the app and syncing it with cloud server. All stored data will be restored to another phone.
In order to aviding data lost due to deleted or phone broken, you should backup your Samsung data via Samsung Kies or Google Cloud Backup.