Factory reset bring your device back to the same state you first got your unit. (Please follow exactly those steeps)
- From Main Screen go to Settings > Other > More Settings > Backup & reset - factory data reset - now confirm you want to do a Reset your Box.
- Your device will now reboot, it can take up to 10 or more minutes to get all your apps back after a reset.
- Leave your device on and all apps will appear, after that please connect your box to internet following instruction listed here.
- Next step is important to to restore all addons and data for XBMC/KODI to do so please follow the instruction listed here.