The one click root will not work on 2.3.6 u need to use the method above
There is an internal 16gb sd card that is not removeable. There is also and external sd slot that is r emoveable
Go here http://xdaforums.com/showthread.php?t=1340526 you need to use that method to root 2.3.6 instructions and files needed are in that thread. Its very easy
I just want to root and leave everything stock. I don't feel like dealing with all that custom stuff. Is there a way to just flash a rooted stock rom with odin and be done with it. I'm on 2.3.6 btw
The GS2 doesn't support booting recoveries via fastboot, so the only way to root (short of using a rooting tool) is to install a custom recovery like TWRP or CWM via Odin, and then root the system from within the recovery. You can restore the stock recovery if you want, but I don't know of any other clean methods to root.
Also, you are aware that there is an official (Samsung provided) Jelly Bean ROM for the GS2, right? While that doesn't get you "up to date", it at least gets you on a 4.x stream, which will dramatically improve app support on the Play Store.
I can't just flash a rooted stock file with odin? I don't understand all that other stuff you're saying/