You could use DevCheck, which will not only tell you whether the device is rooted, but provides a lot of other information about the hardware and operating system of the device as well. In DevCheck, go to the System tab and scroll down to the Operating Sytem panel. There's a "Root access" item which will say "Device is rooted" or "Device is not rooted" as applicable.I got an unlocked ph-1 phone for my son. When it starts it says the bootloader could not be checked and then boots into android. How do I know if it is rooted or not?