diff --git a/BackupStrategy.page b/BackupStrategy.page
index 8227779..237ae32 100644
--- a/BackupStrategy.page
+++ b/BackupStrategy.page
@@ -22,7 +22,11 @@ No backup strategy for now...
 
 # Android devices
 
-- MotoXStyle, monthly TWRP backup (+rsync /media/data) to Mikubook /media/sata/$USER/Backups
-- GalaxyTabS2, monthly TWRP backup (+rsync /media/data) to Mikubook /media/sata/$USER/Backups
+- MotoXStyle, monthly TWRP backup (+tar.gz media) to Mikubook /media/sata/$USER/Backups
+- GalaxyTabS2, monthly TWRP backup (+tar.gz media) to Mikubook /media/sata/$USER/Backups
+
+```
+$ adb exec-out 'tar --create /sdcard1/media/0 2>/backup-errors.txt' | gzip > media.tar.gz
+```
 
 Nextcloud is used for some data and all Contacts, permanent synchronization.
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