S8 excellent surprise!

[c7h12]

Do you already have TWRP installed? Then you can reboot into recovery and do there a backup.

[HOWTO] Backup and Restore Data on Android Devices

This is an editable document a wiki and the document is Work in Progress. Users who have tried out other working methods of Backing and Restoring data can add / edit to this document. This includes the images - add screenshots where you have them and help make this document better. Backup and Restoring of Data One of the biggest issues new users have when switching to custom ROM’s is figuring out how to backup and later restore their current smartphone data. This backup could include contact…