How to Upgrade Galaxy S2 [GT-I9100] to ICS
- Install Samsung Kies PC in ur PC. You can download it from the link in download section of this post.
- After installing kies sign in to kies using ur Samsung account.[ if asked]
- Backup all ur content using kies. [When i upgraded my s2 to ics. no content were erased].
- Then go to the basic information section in top middle part of kies and see the firmware information.
- click update button in this part.
- Done.!! It takes few minutes to download the firmware. If any confirmation box comes in ur phone confirm it by pressing accept.
Click to Download KIES PC