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Rooting Galaxy S2 - Dummies Guide

Discussion in 'Android Devices' started by ironass, Jan 13, 2012.

  1. khun wim

    khun wim Newbie



  2. khun wim

    khun wim Newbie

  3. Shotgun84

    Shotgun84 Extreme Android User

    The kj2 link is broken so just use the kj3 cfroot instead.
  4. SherazS2

    SherazS2 Newbie

    I got it from other site

    is this one is fine?

  5. Shotgun84

    Shotgun84 Extreme Android User

    It looks good to me
  6. SherazS2

    SherazS2 Newbie

    @Shotgun84 : Should i root my S2 or wait for warranty to end which will take almost 11 months :).

    just need advice.
  7. Shotgun84

    Shotgun84 Extreme Android User

    Personally I would root but you're the only one who can really make the decision.
  8. khun wim

    khun wim Newbie

    I have downloaded CheckROM v6 and have studied the installation guide.
    I am about to flash the rom, do I need to wipe clean first?
    I have made a titanium back up.
  9. Shotgun84

    Shotgun84 Extreme Android User

    Its always best to do a wipe before flashing a new ROM. You might get away without but its likely to cause more problems in the long run.
    khun wim likes this.
  10. SherazS2

    SherazS2 Newbie

    Finally rooted my S2 and installed CheckROM V6, everything went smooth but can't get apps from google play to my S2.. any solution?

    If i want to install another ROM then all i have to do is wipe data and install ROM from sd card?
  11. ironass

    ironass Extreme Android User
    Thread Starter

    Congratulations SherazS2! :)

    As for Google Play... try going to Settings > Applications > Manage applications > All > Google Play Store > Clear data and Clear cache.... and see if that helps.
    SherazS2 likes this.
  12. SherazS2

    SherazS2 Newbie

    It works :), please reply to my second query too.
  13. Shotgun84

    Shotgun84 Extreme Android User

    Yeah to change ROM just wipe and flash from the sd like you did for checkrom
  14. kaushal101

    kaushal101 Newbie

    I have SGS2 GT-I9100P branded orange UK (with NFC). Will I be able to use these steps and files to root & flash CheckROM v6?

    My Kernel version is #2

    As per your explanation, this is KI3, so below file should work for rooting?

    CF-Root-SGS2_XX_OXA_KI3-42-v4.2-CWM4.zip (of course I'll be careful to unzip once and only once :))

    I keep on seeing people mentioning that these steps/files will only work for GT-I9100, and mine shows GT-I9100P, so am a bit worried before using these.

    I've moved from Desire to SGS2, and this is the first time I am attempting to root, so please bear with me.
  15. ironass

    ironass Extreme Android User
    Thread Starter

    To be honest kaushal101, the, "P", variant had not been released when I originally compiled the, "Rooting for Dummies Guide", but since the NFC is a firmware item, (be careful if you are installing firmware's), and not a kernel thing... then I cannot see any reason why you cannot root using the kernel you mention and this guide.


    Have amended post #1 to include the, "P", variant.
    kaushal101 likes this.
  16. Shotgun84

    Shotgun84 Extreme Android User

    Kernels and firmwares for the international will work on the P. There however have been reports that flashing firmware for the international has resulted in the loss of nfc. Kernels don't seem to have that problem so you should be able to root with the guide.
    kaushal101 likes this.
  17. khun wim

    khun wim Newbie

    I did a wipe, flashed checksumt V6, it works like a gem, and I got what I wanted, a dutch swipe keyboard.

    thank you
  18. kaushal101

    kaushal101 Newbie

    To be honest, I thought I was getting a hang of this with kernel and ROM. And now this firmware has confused me.

    Kernel = layer of software that decides how phone's software will talk to the hardware. Kernel can be flashed using Odin.

    ROM = operating system software of the phone. It can be flashed using CWM

    I read more about firmware. What I understand is, firmware is slightly different from kernel & ROM, but it's not a combination of these two. Am I right? Firmware also can be flashed using Odin.

    For example, there is new ICS firmware available here

    So, what's the difference between flashing a kernel & ROM to flashing firmware?

    At one point, someone also said that flashing firmware doesn't need you to be rooted? That's even more confusing, isn't it?
  19. Shotgun84

    Shotgun84 Extreme Android User

    Firmwares and roms are essentially the same thing. The difference is official stock versions are called firmware and custom versions are called roms.
    kaushal101 likes this.
  20. SherazS2

    SherazS2 Newbie

    Everything is going smooth tested lots of ROMS but there is one thing that's bothering me hard to explain because of my poor english but still i have to ask.

    why the hell that CWM gone after flashing roms 3 or 4 times ? it goes back to stock recovery programme and i can't install any other rom using stock recovery programme which is called ANDROID RECOVERY.

    I have found a solution all i do is root my S2 again using Odin and then that CWM comes back but that's annoying.
  21. Shotgun84

    Shotgun84 Extreme Android User

    I'm not really sure why it does that. Its happened to me a couple of times but not very often.
  22. jak68

    jak68 Member

    Hi, I am not sure but are you able to root your phone once it has been updated to ICS :thinking:
  23. Hawker

    Hawker Android Expert

    Yes. The procedure is exactly the same, and you will need one of ChainFire's ICS kernels to do so.
  24. Choronzonix

    Choronzonix Member

    Rooted my girlfriend's sgs2 last night, and my own a couple of months ago both times using this guide. It truly is flawless and I can't imagine how anyone could mess it up via this guide, thanks so much!
  25. ironass

    ironass Extreme Android User
    Thread Starter

    Congratulations Chorozonix! :)

    Please feel free to mention my name to your girlfriend... in case she has a sister! ;)

    Just read back on some of the previous posts on this thread! :rolleyes:

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