Can't get root to work - AT&T Samsung Galaxy S II SGH-I777

I have tried all root methods. I just bought a new i777 and the previous owner had the folks at the AT&T store wipe it and when they did that they updated it . So it is up to date as of Today. But I cannot get it to show up in ODIN. I have tried normal Odin and Odin one click. I have tried 3 computer and 2 different connection cords. Any help ?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app

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You must have the USB drivers installed. In Add/Remove programs or Uninstall or change a program, depending on Windows version, you should see Samsung USB Drivers for Mobile Phones. If that is not present, install the correct driver first.
Next, not knowing your level of experience.... make sure you are using Odin correctly.
How to use stand-alone Odin3 to flash firmware:
Follow and recheck each of the following steps. Do them in order listed, as some steps are dependent on previous steps. Instructions are for Odin3 v1.85. It should work with any version of Odin, but some details, like color of items, may be different.
1.) Open Odin on the Windows Desktop.
2.) Have the USB cable plugged into USB port on the computer, but *Not* plugged in to the phone.
3.) Shut the phone off.
4.) While holding down the vol+ & vol- keys, plug micro-usb plug into phone.
5.) In Odin, you should get the yellow box under where it says ID:COM with the text 0:[COMx], and in the Message area, <ID:0/00x> Added!! where x is some number, usually 1-8.
6.) In Odin, make sure Auto Reboot and F. Reset Time are checked and all other items are not checked.
7.) Click on the PDA button. Browse to the tar file you want to install and select it so its path appears in the text edit box next to the button.
8.) Make sure the check box next to the PDA button is checked.
9.) Click the Start button.
10.) You should see the green progress bar advancing.

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I have drivers installed but it is still not working
Sent from my SAMSUNG-SGH-I777 using xda app-developers app

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KonnerTomlinson said:
I have drivers installed but it is still not working
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
Click to expand...
Click to collapse
You are gonna have to be more specific

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122ninjas said:
You are gonna have to be more specific
Click to expand...
Click to collapse
My computer won't recognize my device. I downloaded and installed drivers and have tried using standard Odin and the one click root Odin .
My about :
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Sent from my SAMSUNG-SGH-I777 using xda app-developers app

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KonnerTomlinson said:
My computer won't recognize my device. I downloaded and installed drivers and have tried using standard Odin and the one click root Odin .
My about :
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
Click to expand...
Click to collapse
You don't say, but I am going to assume you double checked the list I posted to make sure you are following the correct proceedure. The steps must be followed in order as some steps are dependent on the preceeding one. If you havn't done that, please do.
Possible things that could be at fault: USB driver, cable, USB port on computer, microusb port on phone, the computer itself, and user error. You've tried some of these things already: Uninstall and reinstall driver, use a different computer, try all the USB ports on the computer, if computer is a desktop use USB port directly connected to mother board, use a different cable preferably the original one that came with the phone - try as many as you can get your hands on, verify that your phone's microusb port is working correctly. By a process of elimination, you have to find the weak link and correct it.

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I followed your list in the exact order you posted it . I'm going to buy a new cable in case that's the problem . I'll post if I get it fixed
Sent from my SAMSUNG-SGH-I777 using xda app-developers app

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I have now flashed it and sadly i used the .tar from galaxys2root.com
I am now stuck a the Samsung Galaxy S II GT-i9100 screen
can anyone please help? i can get into download mode so any links on what to flash would be awesome

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KonnerTomlinson said:
I have now flashed it and sadly i used the .tar from galaxys2root.com
I am now stuck a the Samsung Galaxy S II GT-i9100 screen
can anyone please help? i can get into download mode so any links on what to flash would be awesome
Click to expand...
Click to collapse
Read creepyncrawly's sig

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122ninjas said:
Read creepyncrawly's sig
Click to expand...
Click to collapse
Okay , I'm only still confused on how to get CWM on my device after getting root.

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Nevermind... I didn't read the whole thread...
Clay
Team Pirate
Sent from my PINK SGH-I777

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First, enter recovery and do a wipe data/factory reset. I'm not sure which recovery you will have from the GalaxyS2Root that you flashed, but it may be 3e recovery. Whatever recovery it is, the wipe should get your phone to boot. Then follow the Guide linked in my signature to install custom binaries without incrementing the flash counter. It contains all the information you need. If you have questions, ask.

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KonnerTomlinson said:
Okay , I'm only still confused on how to get CWM on my device after getting root.
Click to expand...
Click to collapse
Do what creepy said in the above post. CWM is included in our custom kernels so no need to flash it seperately.
Sent from my SGH-I777 using Tapatalk 2

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Usually cwm will install with the kernel when you root it, what kernel are you going to use?