What is the easiest way to upgrade my Galaxy S2 to Android 4.2.2 Jelly Bean? Also, how do I update it?

1 Answer 1


Here's some ways to update your firmware, from easiest to harder (not necessarily hardest).

  1. OTA (Over the air) update. Trigger it via Settings > About > Software update.

  2. Kies. Install Kies on your PC, run Kies, and connect your mobile phone to your PC using USB cable. There is an update function in the Kies software.

  3. Odin (Windows). This is a 3rd-party tool that you use to flash (or install, in layman's terms) a stock (or default) ROM or custom ROM on your phone. You will need to download Odin and the custom ROM or stock ROM from somewhere. There are several guides on Google on how to flash a stock / custom ROM for Samsung Galaxy S2. For Linux, you can use Heimdall.

  • Thanks for your answer: for the first option i have tried it and it tell me that no updates even i have android 2 in my galaxy S2 , for the second option I need to upgrade to the unofficial android 4.2 I think the last one is the best; but have you try it, it is working without any problems ? Commented Jul 15, 2013 at 7:29
  • @HananAwwad See if this answer helps you: android.stackexchange.com/a/27871/5342 Let me know if it works.
    – geffchang
    Commented Jul 15, 2013 at 7:33
  • I don't think; what i need this a reliable way to upgrade my galaxy s2(GT-19100) from android 2.3.3 to android 4.2 Commented Jul 15, 2013 at 8:01
  • Jelly Bean 4.2.2 is not yet released for the Samsung Galaxy S2. (Source) Commented Jul 15, 2013 at 8:04
  • 1
    Thank you all i got what i need, This tutorial helped me a lot droidfirmwares.com/… Commented Jul 15, 2013 at 9:43

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