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

forums.androidcentral.com/asus-fonepad/302368-will-factory-r...

This thread has an authorative answer on what happens when you do a factory reset.

forum.xda-developers.com/galaxy-nexus/help/wipe-internal-sto...

This thread tells of how a Factory reset only wipes /data in a CUSTOM recovery. In stock recovery it handles the storage partition also.

forum.xda-developers.com/galaxy-s2/help/factory-reset-format...

A forum thread discussing this topic giving some assurance as to what happens

forum.xda-developers.com/galaxy-s2/help/safely-formatting-in...

This is an excellent question and answer for formatting internal storage on Android.

After some 2+ years of constantly changing ROMs, I've noticed that my i9100 shows more often than not the message of "your storage is getting full" or ...

www.wikihow.com/Erase-Internal-Storage-on-Android

If you need to sell your Android, or just completely reset it, you can do a factory reset to erase the internal storage.

According to helpfulness feedback, this only deletes user data, not internal storage.

android.stackexchange.com/questions/56429/how-to-properly-fa...

This forum thread discusses what happens when you do a Factory Reset and that it does not touch the exteranl storage.

forums.androidcentral.com/t-mobile-galaxy-note-2/333410-what...

I have searched but couldn't find any info. what exactly happened when we do 'factory reset'? What gets restored?

www.cnet.com/how-to/how-to-do-a-factory-reset-on-android/

Learn how to perform this "last resort" method on your Android.

forum.xda-developers.com/nexus-4/help/how-to-copy-cwm-backup...

So, CWM saves its backups and blob directory in /mnt/shell/emulated which is not accessible via MTP. I've started using TWRP for all my new backups but I would like to copy the existing CWM backups to my PC before wiping the directory on my phone. It's ...

sigitp.wordpress.com/2013/01/23/nandroid-backup-restore-for-...

A walkthrough of 'Nandroid Backup & Restore for Android 4.2'

forums.androidcentral.com/google-nexus-7-2012-rooting-roms-h...

Hello, I have a rooted Nexus 7 running 4.2.1 (JOP40D). Prior to 4.2 I had Cyanogenmod 10 installed. I've been using ROM Manager (updated today to v5.0.2.5) and Titanium Backup. Everything worked fine and after running ROM Man and Titanium B, I would co ...