I have a Nexus 5 with Android 6. The ROM is stock and not rooted. My bootloader is locked too.
When I try to save the Skype data files (chats, messages...) nothing will be saved.
adb backup -noapk -f Skype.ab com.raider.skype
This command will be used to save the data like messages and more.
My question: How can I backup my Skype data?