How to take a screenshot with the Samsung Galaxy S2

Presuming you have the latest supported version of Android on your Samsung Galaxy S2 (4.1.2), here are the steps for taking a screenshot:

1. Hold down on the POWER BUTTON and the HOME BUTTON simultaneously, but keep them held for more than a second.
   

Factory Reset your Samsung Galaxy S2

Performing a Factory Reset on your device is very easy. The difference between a Factory Reset and a Hard Reset is:

Factory Reset
The 'lighter' of the two reset options. It can be done either in settings or via recovery menu. It wipes all user data and firmware settings but leaves the contents of your internal SD Card intact.

Hard Reset your Samsung Galaxy S2

Performing a Hard Reset on your device is simple as pie. The difference between a Factory Reset and a Hard Reset is:

Factory Reset
The 'lighter' of the two reset options. It can be done either in settings or via recovery menu. It wipes all user data and firmware settings but leaves the contents of your internal SD Card intact.

How to install custom ROM CyanogenMod 10.1 on Galaxy S2 I9100G

How to install the custom ROM CyanogenMod 10.1 on Galaxy S2 I9100G

Warning: Neither AndroidPIT nor I will take any responsibility for damages. Please make sure you follow all the rules carefully without skipping any steps otherwise you could brick your phone.

• Ensure that your phone has been charged to at least 70%.
• Enable USB debugging on your phone. Do this by going through all apps → Settings → Manage Applications → Development → USB Debugging → check box.
• Backup your phone data.
• Install the US drivers for Samsung Galaxy S2 I9100G. Either Samsung USB Drivers or Samsung Kies.
• Before proceeding your phone must be rooted and CWM Recovery should be installed.

New Jellybean 4.1.2 leaked today, and man is it clean! for Galaxy S2

All you Galaxy S2 Power users out there - come and get it!
This build is very much near perfect so we believe that Samsung will actually start rolling out the Official Jelly Bean update for the Samsung Galaxy S II very soon. The day Samsung starts to roll out the official update you will be able to install the latest update through Kies or OTA update.