Restoring iPad2 is quite easy. The steps are just the same with that of the iPhones. By the way the cause of being in a Recovery Mode is that when you update your iPad and wasn't able to finish updating, it will result to recovery mode icon on your display. You just see an iTunes icon with usb cable below it as shown below.
How To Restore iPad2.
1. Download compatible firmware for iPad2.
2. Have your iTunes latest version installed on your PC or Laptop.
3. Have your Apple USB Cable and a working mind:)
4. Power on your iPad2, connect it to your PC and install drivers.
5. Once the iTunes software detects that there is an iPad in recovery mode state, press SHIFT key on your PC keyboard and press RESTORE button on the iTunes software.
6. Browse for the compatible firmware that you have downloaded and press ok.
7. Wait to finish restoring.
8. After activating, you are done.
