not sure where to post new to this. I purchased my phone from the "phone guy" I do have a few questions. The stupid thing will not hold a data signal to save its life(very very annoying, and before you ask yes other phones on the sprint network have GREAT signals). How can I tell if its been rooted? I really don't know what that means. and last but not least there is an app on there named "superuser" found in play store but have no clue ( by now you know that I have no clue) Thank you in advance. Any help would be great.
1st) Samsung phones have horrible radios period. Don't let anyone tell you otherwise. Case in point the Galaxy nexus.
Fix - Go into your settings -> System update, then update your profile then prl.
2nd) there's a 50% chance you are rooted, if superuser is installed. Either it was downloaded from the Play store and is lacking the su binary (no root) or it was installed by actually rooting the device (root).
Fix - To tell if you are rooted or not, go into settings -> about device -> status, the scroll all the way down to device status. If it says "modified" your most likely rooted. But if it says "normal" then you are not rooted and are fine to take it in.
Root on Unix systems simply means you are an administrator. It grants you full access to modify system level setting, folders, and files. Which is a very dangerous thing to do, if you don't know what you are doing.
Also can you open the superuser app and take a screen shot of it for me and post it here? That would confirm 100% if you're rooted or not as apps would be listed with either granted or denied status if you are.
Sprint GS3 Running TN's Msg and Chubbs