Go to Google Play and download a terminal client
app
I recommend getting “Terminal Emulator for
Android” which is for free.
Launch the app and you should get the well-known
terminal interface with a text entry prompt.
Now, check the character right before your entry
prompt.
If there’s a pound sign (#) then you’re rooted
Is there a dollar sign? If so, type in su and hit enter.
Should the dollar sign change into a pound sign
(#), then you’re rooted.
that’s it.