Explanation: Samsung: Bootup screen. Downloading: Sometimes happens when your phone has to download something while updating. "System is corrupted": The system detected unauthorized software installed. It corrupted itself for your protection. Can't be trusted: When the bootloader has an issue or it spotted corrupt system files. Tux the Penguin: All system files are deleted. The Linux kernel only remains. Linux "Device is corrupt!": Very rare. It appears after Tux, the same reason as "Can't be trusted". Black screen: Time for your phone's vacation to the dump!
