Galaxy S3 SU Binary error

[Phray]

I was trying to completely restore (unroot) my phone when, after trying to run TriangleAway it said something about SuperUser not granting it access. I checked SuperSU and whenever I try to open it, it says "There is no SU binary installed, and SuperSU cannot install it."

This is my first time dealing with rooting and/or flashing (my brother gave me this phone rooted), so I'm not really sure what to do to fix this. Lots of threads I checked seemed to be for different phones or had pretty complicated instructions (if you can call them instructions...) so I was wondering if anyone can kind of walk me through dealing with this? I would like to re-root my phone afterwards, but I just want to completely unroot it right now.

 

It was rooted before and working fine, but when I tried to use TriangleAway to unroot it, SuperSU didn't allow it.

And every time I go into superSU it says the binary isn't installed...and I can't uninstall the application, only "disable" it, whatever that does.

[bradscoolio]

Are you going to use the phone personally? If you are keep it rooted

[SteepGnomeKing]

Are you using Triangle Away while it's still rooted, or are you restoring it and than loading triangle away onto the device?

And TA doesn't unroot your phone also.

If you are just wanting to unroot and restore you don't even need TA. If you are trying to get it back to normal to take it back in for warranty than you need TA.

[mgsstar]

You could be unrooted because it says that. I would maybe get a root checker to see if you actually have root. I had that problem when I did an OTA update on my Nexus 7 and it gave me a su binary error. I fixed it by flashing the SuperSU flashable zip via TWRP.

[Phray]

Are you going to use the phone personally? If you are keep it rooted

 

 

Are you using Triangle Away while it's still rooted, or are you restoring it and than loading triangle away onto the device?

And TA doesn't unroot your phone also.

If you are just wanting to unroot and restore you don't even need TA. If you are trying to get it back to normal to take it back in for warranty than you need TA.

 

Oh, I thought resetting the flash counter was necessary to root it again. That's great! But is the SuperSU thing a problem if I just want to re-root it? I feel like it's messed up..

 

However, for some reason my phone isn't recognized by Odin. It doesn't appear in the ID:COM section and my computer won't recognize it if I connect it in download mode. Any ideas?

 

(Also, a side question: my phone also isn't really reading my SD card. It doesn't have the option to format the SD card and I often get "download unsuccessful" after I download something to the SD card from any browser. Do you think I need to get a new SD card?)

 

 

You could be unrooted because it says that. I would maybe get a root checker to see if you actually have root. I had that problem when I did an OTA update on my Nexus 7 and it gave me a su binary error. I fixed it by flashing the SuperSU flashable zip via TWRP.

 

I'm new to all this, so how would I go about flashing it? Is the software available for the GS3?