How can I back up my Nexus 7 without sync (getting currently experiencing problems error)

[Hidrologo]

getting the above message so I cant sync, but that is needed to backup according to online method.

 

[hang-the-9]

You can hook it up to a computer and back it up that way. http/www.tomsguide.com/us/pictures-story/633-best-android-backup-apps.html http/downloads.tomsguide.com/Helium-Desktop-Installers,0301-51209.html