CE Labs MP90 User Manual page 18

Factory data reset
This will erase all data from your mbox's internal storage,including:
·Your Google account
·System and app data and settings
·Downloaded apps
·Music\Photos
·Other user data
You can reset all the settings and apps to factory default.
Note: Once you choose to reset to factory default, all data/apps will be deleted.
3.14 Accounts
18