A rubish tablet, I am using since last 1 year, 1- it hangs a lot 2- evry time tab get off autometially 3- on which moment it being hang you can'n say. 4- system update automatically, after update when you reinstall tha update, it can't happen. You will get notification need to reboot to finish tha update installation, but again after restart or reboot, your tablet will hang