Online Nandroid Backup v2.6.7.1

Nandroid backups are usually performed in recovery mode. This means you would
have to turn off your phone and reboot in recovery mode, which wastes a whole
lot of time rebooting and a lot more time offline. With this tool you can do
nandroid backups without switching off your device.

THIS APP REQUIRES A ROOTED DEVICE [...]

More: http://mobilehere.net/2012/12/online-nandroid-backup-v2-6-7-1.html

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