Faire une sauvegarde

$ adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached 
TA98601E4J  device

$ adb backup -apk -shared -all -f backup.ab

Restaurer une sauvegarde

adb restore backup.ab

Nextcloud is an open source, self-hosted file share and communication platform. Access & sync your files, contacts, calendars & communicate and collaborate across your devices. You decide what happens with your data, where it is and who can access it!

Secure and end-to-end encrypted personal information (contacts, calendars and tasks) cloud sync for Android, the desktop and the web.