forum.xda-developers.com/showthread.php?t=1103399&highlight=...

This guide is how to root or flash an insecure kernel to a samsung galaxy s2 which allows you to keep the whole phone stock but with superuser permissions.

forum.xda-developers.com/showpost.php?p=14763476&postcount=5...

This is a noobs guide on how to flash an insecure kernel for an android phone or samsung galaxy s2 while maintaing the stock ROM. Excellent reading for the nervous.

forum.xda-developers.com/showthread.php?t=1075278

This thread contains the latest stock ROMS for the Samsung Galaxy S2 and flashing guides. Read the Notes before flashing as there are always changes.

forum.xda-developers.com/showthread.php?t=1064894

As the title says this is a guide to debrand and rebrand your samsung galaxy s2. The benefits of this is you can get releases straight from samsung whent hey come out without having to wait for the carriers to release their bloat ware versions.

forum.xda-developers.com/showthread.php?t=1457458

This is an excellent guide to follow when flashing your samsung galaxy S2 has gone wrong. I have followed it and it works.

thedroidguy.com/2014/03/samsung-galaxy-s2-problems-solutions...

I do admit, I was hesitant to write about the Samsung Galaxy S2, which is by the way, so 2011-ish. Considering the popularity of the Galaxy S3, S4 and the upcoming S5, I was thinking no one’s going pick up an S2 anymore. The reality is, dated pho ...

www.youtube.com/watch?v=dh0jPJF_n0Ihttps://www.youtube.com/w...

How To Install Android 4.4 KitKat On Samsung Galaxy S2 GT-I9100 - Cyanogen Mod 11

galaxys2root.com/galaxy-s2-root/how-to-root-galaxy-s2-gt-i91...

For those of you who want to root your Galaxy S2 GT-i9100 on Jelly Bean Android 4.1.1 or Android 4.1.2, here’s how to do it easily using a custom kernel.

androidforums.com/threads/siyah-kernel-dummies-guide.518798/

Instgall the Siyah custom kernel with root on your samsung S2