CWM & new ROM on Samsung Galaxy SII I9100

Forums › Android › CWM & new ROM on Samsung Galaxy SII I9100 - from 4.0.3

haakuturi

241 posts

Master Geek

Trusted

#98954 9-Mar-2012 13:51

I've been looking online at how to root & install CWM on the S2, and all the instructions say to start from 2.3.

I forced my phone to update to 4.0.3 via ODIN, using the method & files found at The Android Soul (My baseband is I9100XXLPH).

Has anybody found information on rooting & installing CWM if you're already running 4.0.x?

nzgeek

619 posts

Ultimate Geek
+1 received by user: 52

#592795 9-Mar-2012 15:29

Rooting and installing CWM on an ICS ROM is almost identical to doing it on Gingerbread. The only difference is that you need an ICS kernel.

The good news here is that Chainfire is producing CF-Root kernels for ICS. These are stock kernels, but with modifications to some of the supporting files so that they include CWM recovery, the CWM app, SuperUser, and are rootable.

To root/CWM-ifiy your ICS, download the XXLPH kernel from the link above. This will be a ZIP file with a TAR file inside it. Pull out the TAR file and put it somewhere you'll remember. The rest of the steps are almost the same as when you flashed on the ICS ROM. The only change is that you'll only be using the PDA section in Odin (not the PHONE or CSC sections), and that you'll need to select the CF-Root TAR file. When the flashing process is done, you're good to go.

The only thing you'll probably notice is that you'll have a yellow warning triangle show up on your screen when you boot your phone. This is an indicator that you've got a non-standard kernel installed. You'd normally use a USB jig to remove this, but the bootloaders that come with ICS don't allow this any more. The easiest way to change this is to use the TriangleAway app, although this does have some risk of hard-bricking your phone. There are other ways to remove the triangle, but they each have quite a few steps and will take a while to go through.

nzgeek

619 posts

Ultimate Geek
+1 received by user: 52

#592819 9-Mar-2012 16:12

I've just tried TriangleAway on my phone and it worked perfectly. There are plenty of people on XDA saying that it works fine, and nobody reporting any problems. It should be fairly safe to use.

haakuturi

241 posts

Master Geek

Trusted

#592820 9-Mar-2012 16:14

Thank you both - I might have a play at this tonight :-D I really want a vanilla Android 4 experience, I don't like the Samsung extras.

haakuturi

241 posts

Master Geek

Trusted

#593282 10-Mar-2012 17:45

nzgeek: Rooting and installing CWM on an ICS ROM is almost identical to doing it on Gingerbread. The only difference is that you need an ICS kernel.

The good news here is that Chainfire is producing CF-Root kernels for ICS. These are stock kernels, but with modifications to some of the supporting files so that they include CWM recovery, the CWM app, SuperUser, and are rootable.

To root/CWM-ifiy your ICS, download the XXLPH kernel from the link above. This will be a ZIP file with a TAR file inside it. Pull out the TAR file and put it somewhere you'll remember. The rest of the steps are almost the same as when you flashed on the ICS ROM. The only change is that you'll only be using the PDA section in Odin (not the PHONE or CSC sections), and that you'll need to select the CF-Root TAR file. When the flashing process is done, you're good to go.

The only thing you'll probably notice is that you'll have a yellow warning triangle show up on your screen when you boot your phone. This is an indicator that you've got a non-standard kernel installed. You'd normally use a USB jig to remove this, but the bootloaders that come with ICS don't allow this any more. The easiest way to change this is to use the TriangleAway app, although this does have some risk of hard-bricking your phone. There are other ways to remove the triangle, but they each have quite a few steps and will take a while to go through.

So I've run ODIN with just the .tar file, and beginning to think that was an error, 'cause now when I boot my phone I get just a Samsung Galaxy SII GT-I9100 splash page with a yellow triangle. And then it goes no further. Does this mean I can now just flash a new ROM using ODIN or have I done something really stupid?

haakuturi

241 posts

Master Geek

Trusted

#593307 10-Mar-2012 18:54

And here's the output from ODIN if I try to re-flash using the original XXLPH download from The Android soul:

Added!!
Enter CS for MD5..
Check MD5.. Do not unplug the cable..
Please wait..
I9100_APBOOT_I9100XXLPH_CL118559_REV02_user_low_ship.tar.md5 is valid.
I9100_CODE_I9100XXLPH_CL118559_REV02_user_low_ship.tar.md5 is valid.
MODEM_I9100XXLPH_REV_02_CL1104396.tar.md5 is valid.
GT-I9100-MULTI-CSC-OXALPH.tar.md5 is valid.
Checking MD5 finished Sucessfully..
Leave CS..
Odin v.3 engine (ID:5)..
File analysis..
SetupConnection..
Initialzation..
Get PIT for mapping..
Firmware update start..
boot.bin

Complete(Write) operation failed.
All threads completed. (succeed 0 / failed 1)

nzgeek

619 posts

Ultimate Geek
+1 received by user: 52

#593463 11-Mar-2012 11:22

That's incredibly strange... I've used the exact method you did, and have had no problems at all. Everything worked perfectly.

When you're trying to re-flash the full rom package, are you flashing just 1 file or all 3? I has problems recently trying to re-flash just one of the files, as the flash process needed one of the other files to work properly.

New World

Shop on-line at New World now for your groceries (affiliate link).

haakuturi

241 posts

Master Geek

Trusted

#593468 11-Mar-2012 11:27

I posted on XDA and managed to get my phone working again - 'though now I'm back to 2.3.3! :(

nakedmolerat

4631 posts

Uber Geek
+1 received by user: 874

Trusted

Lifetime subscriber

#593518 11-Mar-2012 13:44

haakuturi: I posted on XDA and managed to get my phone working again - 'though now I'm back to 2.3.3! :(

be patience. wait for the stable version to come out.

in the meantime, may i suggest hydroxyg3nmod