yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] Scarface1991:
Hey guys,

I am new to the Galaxy S2 forums (was on Wave S8500 Bada before). I am clearly a noob about how to root and flash new customized roms.

I really want to flash this room:

http://xdaforums.com/showthread.php?t=1460702

for this I need a root and I was thinking which Kernel I have to take.

My Phone is on official Samsung firmware (2.3.6)

Baseband version is:

I9100XXKI4

Kernel version is:

2.6.35.7-I9100XWLA4-CL900411 root@DELLBUILDER01 #2

My question is which kernel from the first page I need to download and then flash via Odin?

Thank`s in advance
[Galaxy S II Original Android Development] Rinoko72:
Press *#1234# on your dailer and check your build number is XWLA4 as well..

If it is, you want this one from post #7: CF-Root-SGS2_XW_OXA_LA4-v5.0-CWM5.zip

Follow the instructions on in the first post..! Good luck.
[Galaxy S II Original Android Development] Scarface1991:
Thank you for the fast response.

Well that`s what was on the screen after typing *#1234#

PDA: I9100XWLA4

Phone: I9100XXKI4

CSC: I9100DBTKH1

I assume that PDA: I9100XWLA4 is the build number?
[Galaxy S II Original Android Development] CamoGeko:
That's correct. :)

You can use the CF-Root version mentioned above.

Communicated from an SGS2 type Droid while floating in CM9 Galaxy
[Galaxy S II Original Android Development] Scarface1991:
Should I put the phone into USB Debugging mode before rooting? It is mentioned on another rooting tutorial but not in this tutorial.
[Galaxy S II Original Android Development] CamoGeko:
It can't hurt mate, I have it on all the time and had it on when I rooted as well.
[Galaxy S II Original Android Development] Scarface1991:
Thank you guys, root and the new room works like a charm ;)
[Galaxy S II Original Android Development] crypticc:
apologies everyone. my sd card was actually full! Now just need to figure out if my nandroid. will ask in q&a thread.
[Galaxy S II Original Android Development] AGiovanni:
Hi to everybody. Friends I have a doubt that I hope you will help me to resolve. Is it safe to extract the sbl from the stock firmware with Izarc and then flash it with odin in pda?

I would want to flash the 2.3.3 bootloader, to reset the kernel counter (using the jig) and then re-flash the 2.3.6 bootloader.

Thanks.
[Galaxy S II Original Android Development] st3chn0:
In intratech thread of official firmware there's a package with the old boot loader use that... And there is no point re flashing the new one doesn't actually make any difference to what firmware your using
[Galaxy S II Original Android Development] Sixie:
Hi,

Which is the best CF-Root for me to use?

I have:

PDA: I9100XWKI4

PHONE: 19100XXKI1

CSC: I9100CPWKH1

preferably the best latest version, im not sure if any of the CF v5.x would do me any good?

or would it be possible to have a v5.0 with the KI4?

Im guessing the only one and best available for my version is CF-Root-SGS2_XW_NEE_KI4-42-v4.2-CWM4.zip ?
[Galaxy S II Original Android Development] TehH4rRy:
With this kernel installed is it safe to use custom roms and such?
[Galaxy S II Original Android Development] CamoGeko:
Yeah mate, use that one. ;)

Exactly what this kernel is for. :)
[Galaxy S II Original Android Development] TehH4rRy:
Final question which I probably know the answer to, with the offical ICS update coming out on the 1st of March, is it best to avoid this update untill someone uploads a CWM friendly version? Because I guess doing it offical either bricks my phone or wipes this kernel and replaces it with Samsungs one
[Galaxy S II Original Android Development] CamoGeko:
If you update to it, all that will happen is you will loose root since the firmware will be a wipe one and even if it won't be you will need to do a factory reset anyways coming from GB. Remember though, updating firmware is usually a lot easier than downgrading it.
[Galaxy S II Original Android Development] timberwolf60:
Used mobile Odin to update and you will stay rooted with workable cwm recovery. A good guide here: xdaforums.com/showthread.php?t=1424997 on the #2 post.
[Galaxy S II Original Android Development] CamoGeko:
As good as your suggestion is....

1st thing, even though that guide is mostly correct. It's in the Galaxy Note forums which can be confusing since the firmware tags are different.

2nd thing, after flashing ICS firmware with ODIN. All that will be required is just to flash a correct CF-Root kernel with ODIN as well. Which I think is even simpler than the method described in that thread.
[Galaxy S II Original Android Development] TehH4rRy:
Neato, Just getting up to speed with the GSII tinkering but it all seems fairly straight forward. Thanks for your help
[Galaxy S II Original Android Development] RTP:
Hi,

I may have missed this somewhere in this very long thread. Is there a way to update the version of CF-Root installed? I have an XWKI4 rom, which when downloading the kernel from the first page of this thread comes with CF-Rotot v4.1.

Can I update it to version 5.x to get the latest CWM?

By the way thanks Chainfire for this excellent method for rooting!!

Thanks

Roger
[Galaxy S II Original Android Development] CamoGeko:
Yes you can, just flash the newer kernel either via ODIN or Mobile ODIN. :)
[Galaxy S II Original Android Development] RTP:
Thanks. I'll ask another naive question then. Is there any easy way of finding a KI4 kernel with v5 in without paging through 4000 posts? I did look on google but not sure I have my stretch terms right :-(

Thanks again.

Roger
[Galaxy S II Original Android Development] RTP:
That would be search terms, not stretch terms!
[Galaxy S II Original Android Development] CamoGeko:
You won't find it if it isn't on the first page.

Latest one you can have for KI4 is this:

CF-Root-SGS2_XX_XEO_KI4-v4.4-CWM4.zip
[Galaxy S II Original Android Development] RTP:
Ok, thanks for the info. Just moving onto Samsung from HTC, so learning my easy round...
[Galaxy S II Original Android Development] RTP:
...way round....
[Galaxy S II Original Android Development] xOnerOs:
hi is this -> CF-Root-SGS2_XX_XEO_KI4-v4.4-CWM4.zip the latest version for the KI4 version or is there something newer? TIA
[Galaxy S II Original Android Development] CamoGeko:
Just as I said above....yes that is the latest one posted by Chainfire.

Communicated using an S2 type Droid while floating in CM9 Galaxy
[Galaxy S II Original Android Development] borolo222:
Help!! I rooted with CF-Root-SGS2_XX_OXA_KH1-v4.1-CWM4.zip and no probs and made backup with CWM. I wanted to upgrade to 2.3.6 so I download Intratechs XILA2 Frankenstain firmware and flashed with odin mobile pro with all everroot choices turned on. Now I get android.phone FC, so I wanted to do a backup restore. to my surprise, i lost CWM recovery so i can't restore my backup. What do i do?

:confused:

hanks for ur help

Update: flashed CF-Root-SGS2_XI_ITV_LA2-v5.0-CWM5.zip and got CWM again. doing restore right now. How can i solve the FC?? i wanted to update to 2.3.6 .....
[Galaxy S II Original Android Development] Dranrev:
Hi I have rooted my cellphone using this kernel CF-Root-SGS2_XW_OJV_KF1-v4.0-CWM4.zip and I wanted the remove the exclamation point but I need the Stock Kernel 2.6.35.7-I9100XWKF1-CL265340 but the link on the other thread is not working. Can anyone share a link. Another thing is since I am already rooted I can now flash any firmware or do I need to check if the custom firmware is for CF Root only. Thanks.
[Galaxy S II Original Android Development] Rinoko72:
You are now rooted, so the first thing you should do is learn how to make a backup of your divice via the cwm app..

But weather you do this or not you can now flash which ever Fw you want..

Get a "jig" to lose the yellow triangle ;)

Sent from my S2
[Galaxy S II Original Android Development] Dranrev:
Thanks bro. I already made a back up from CWM. You mean I can download the Firmware from Galaxy S II Original Android Development or Galaxy S II Android Development. I have a HTC desire and flash custom firmware. Is it the same process for CF-Root ?
[Galaxy S II Original Android Development] CamoGeko:
Do a full wipe (factory reset) after flashing XILA2.

Communicated using an S2 type Droid while floating in CM9 Galaxy
[Galaxy S II Original Android Development] Rinoko72:
Yes you can download any Rom from those to sections..

the process might be a bit diffrent from custom Rom to Rom, but either you will have to to a full wipe or not, it depents on want the makers instructions are..

But from what I've tried, everything "custom" is a Zip file, so you put it on your internal sdcard, and you flash via CWM..

happy flashing.. ;)
[Galaxy S II Original Android Development] Dranrev:
Thanks again. I was able to flash one custom rom via CWM.
[Galaxy S II Original Android Development] Rinoko72:
great to hear you had no trouble, and glad to of helped..

Be a sport and try the "thanks" button.. It won't bite.. ;)
[Galaxy S II Original Android Development] Crysis21:
Hello guys,

is the adb working for you in recovery with the latest LPB(even the proper version)?

thank you!
[Galaxy S II Original Android Development] Fatherless:
Can i use CF root on my Already rooted Samsung Galaxy Ace .. Because i want to use It to fix a battery problem
[Galaxy S II Original Android Development] shingo86:
*#1234# look at PDA. Download the correct cf root n flash via Odin.
[Galaxy S II Original Android Development] bob0builder:
Well I tried flashing some kernel that I thought might work (had UG in the name) ... I dont have radio or sim card now. I dont know how to go back to the orginal kernel so I can check what kernel it should be ...

I live in america, its a sprint phone and its listed on boot as GT-i9100

So if I dont know what my original PDA,PHONE, and CSC version were what do i do?

BTW, it never did say anything exept 2.6.35 ... though now it has tons of characters at the end ...

---------- Post added at 04:30 AM ---------- Previous post was at 04:22 AM ----------

.. Wow, the box says Epic 4G Touch ... the body and battery and boot all say Galaxy S II.

Thanks let me read the Touch 4G info and *face palm*
[Galaxy S II Original Android Development] obscurant1st:
Can somebody let me know which is the file I should download?

This is the information!
[Galaxy S II Original Android Development] creezalird:
u should not download anything from this thread because u have a G version, this thread so far only support normal version
[Galaxy S II Original Android Development] belerephont:
Hello all!

I am at the stage of thinking about rooting my 3-month-old s2 and need some assistance. After reading most posts in this thread still have some queries.

My stock android version is 2.3.5 BOKK1 and ustand I have to CF-root with CF-Root-SGS2_XW_XEN_KK2-v5.0-CWM5 (hope this is the one).

After rooting (hopefully) is done do I have to restore with my original stock kernel or I just leave it as it is?

Regarding removing the yellow triangle have already ordered the Jig but not here yet so will have to root and remove when the jig arrives. Is there any problem with this? Or it only matters if you take it back for warranty repairs?

My main rooting cause is to uninstall/freeze the bloat apps like AP, Accuweather etc. Is this done via Titanium backup? Is it a simple process? Any chance of harming the phone?

In case I want to go back to stock/unrooted, I just flash a stock rom from the relevant thread right?

Sorry for the length and would appreciate all the help I can get!
[Galaxy S II Original Android Development] Rinoko72:
Well done, mate.. Looks like you did your home work ;)

The Cf-root kernel is correct, and the yellow can be removed when ever you like, with the jig when it comes..

Titanium Back is a great app and works great, the process is simple after you've picked up the basics of using it, it's not that hard to figuer out ;)

After rooting, I'm not sure that you will want to go back to stock, but if you do, can find the offical stock Fw in Intratech's thread, here: http://xdaforums.com/showthread.php?t=1075278

Happy flashing ;)
[Galaxy S II Original Android Development] belerephont:
Thanks for your reply! So I guess no need to reflash the stock kernel after rooting with the CF-Root kernel, right?
[Galaxy S II Original Android Development] Rinoko72:
No, not if your getting a jig.. That will reset the binary counter and the triangle will be gone. :)

Sent from my S2
[Galaxy S II Original Android Development] volod96:
Hello guys! I have a GT-I9100P with NFC chip with the BVKL2 firmware.

I want to root it and I don't know what CF-ROOT kernel should I use (KL1 or KL3).

Do you think that it would be better if I use a kernel like Siyah or SpeedMod instead of CF-ROOT for my device ?
[Galaxy S II Original Android Development] ksantoshh:
Your is I9100G version, PLEASE DONT FLASH KERNEL FROM THIS THREAD, you might end up bricking the phone. Check in thread for I9100G version.

Hope this helps!
[Galaxy S II Original Android Development] sakana:
Hi

I have XXKI3

Wich file must i download (most recent)

Thanks
[Galaxy S II Original Android Development] CamoGeko:
1st page. ;)

Communicated using an S2 type Droid while floating in CM9 quadrant
[Galaxy S II Original Android Development] sakana:
there's no version with cwm5 ?
[Galaxy S II Original Android Development] Windza:
Chainfire, is there any reason why VPN connectivity fails after using the latest LPB PROPER kernel?

I flashed the stock XXLPB ROM (no customisations whatsoever) and two different VPN's I used worked perfectly... after rooting with XXLPB v5.2 PROPER however, both VPN's consistently fail.

I'm no tech expert but is pppd or ip-up-vpn being reverted to an older version when I use this kernel?
[Galaxy S II Original Android Development] CamoGeko:
No, what you see on the first page that's all you can have. Anyways, KI3 is an old kernel. Don't see any point for it to be updated to CWM 5.

Communicated using an S2 type Droid while floating in CM9 quadrant
[Galaxy S II Original Android Development] ciprianruse:
Hello,

i've notice a problem when i root my phone or install onther kernels in recovery when i want to do a wipe data it says sometrhing like this :

- Entering in recovery mode

- Wipe data/factory reset

- - Wiping data...

- - Formating /data...

- - Formating /cache...

- - Formating /Sd-ext...

- - Formating /sdcard/ .android_secure...

- - Error mounting /sdcard/ .android.secure!

Skipping format...

- -wipe data succesfully

I on XWLA4 rom...i haved installed many roms but i didn't notice this problem before.i don't have an external sd-card...only the memory of the phone.once again...this problem in recovey happends only when rooted.the phone works just fine...is this a problem or is normal?
[Galaxy S II Original Android Development] maxvanni:
NEW Firmware: I9100XXLPH_I9100OXALPH_OXA is online, please my lord we need cf-root :)
[Galaxy S II Original Android Development] Chainfire:
Yes yes, I am testing it :)
[Galaxy S II Original Android Development] Chainfire:
LPH posted :)
[Galaxy S II Original Android Development] ggogolewski:
I like Your vacation ;)
[Galaxy S II Original Android Development] shaq1907:
You shouldn't carry your notebook while on vacation:p Thanks for quick upload.
[Galaxy S II Original Android Development] Turk75:
LPH

wipe, flash odin, fash cfroot, reboot

not install apps from market on sdcard, like in lpb
[Galaxy S II Original Android Development] Astrofrigo:
We all love you :D

Enjoy your DESERVED vacations!
[Galaxy S II Original Android Development] Ciervo_anonimo:
Yes, just the same problem :o

Thanks Chainfire for your work.
[Galaxy S II Original Android Development] TehH4rRy:
Flashed me some ICS onto my phone, firmware XXLPB.

Then Odin'd the CF-ROOT over, looks like that secure mounting problem is common.

Enjoy your vacation!
[Galaxy S II Original Android Development] bernard134:
What do you all mean by "problem with mounting on secure storage"?
[Galaxy S II Original Android Development] BrandoHD:
Apps installed on your SD Card will not work.
[Galaxy S II Original Android Development] Dranrev:
Guys I am already on CFRoot and now running on custom rom. I want to change the kernel from LP6 to LPB for the FM radio to work . I followed the procedure but the radio still did not work and check the current installed kernel it is still running on LP6. Please advise. Thanks

Instructions - If you already have CF-Root

- Copy the zip file to your SD card

- Stop sharing SD card with computer over USB, unplug the cable, etc

- Applications -> CWM -> Flash kernel. Select the ZIP file on your SD card.

- Done
[Galaxy S II Original Android Development] hlubepet:
Hi,

flashed LPH

flashed cfroot

extracted zImage from LPH and putted on internal sd card

in cwm flashed back original zImage

sd installation working ok on stock kernel

AND ROOT STILL THERE EXCEPT BUSYBOX (failed to install via installer)

but for me, I dont need busybox for my operation (backup/restore, removing sys app..)

EDIT: busybox installed seperetly, now works :)
[Galaxy S II Original Android Development] MacDrunk:
sorry can you help me
[Galaxy S II Original Android Development] CamoGeko:
I believe I replied to you before. :)

You can just use the KK2 CF-Root.

Logged while floating in CM9 quadrant.......
[Galaxy S II Original Android Development] sahibunlimited:
U can use mobile odin to flash siyah kernel

It will give u CWM+SU+BB and its universal and will have overclock till 1.6 also...
[Galaxy S II Original Android Development] ReeX:
Has anyone rooted successfully LA2?
[Galaxy S II Original Android Development] CamoGeko:
What are the problems that you're having with rooting?

Logged using an SGS2 type droid while floating in CM9 quadrant...
[Galaxy S II Original Android Development] ReeX:
I have read about dudes on this thread unsuccessfully rooting on LA2, so before attempting (screwing up) I was wondering if anyone succeeded on that firmware. :)
[Galaxy S II Original Android Development] haynesteve:
Tried using new lph kernel, but despite 3 different attempts , when trying to install, comes out with "bad" message.
[Galaxy S II Original Android Development] CamoGeko:
Those "dudes" most likely did the installation wrong. LA has been rootable for a long time, if it wasn't then there wouldn't be so many ROMs out that are based on it.

Logged using an SGS2 type droid while floating in CM9 quadrant...
[Galaxy S II Original Android Development] deifel:
Where can I find the original LPH-kernel?
[Galaxy S II Original Android Development] ReeX:
Thanks mate, I'll have a go! :-)
[Galaxy S II Original Android Development] dragon135:
Can someone provide original LPH kernel? I just want to root with CF-Root and flash back original kernel..

How can I extract the kernel from the LPH leak?
[Galaxy S II Original Android Development] Fredouye:
Here it is : http://skywanker.net/roms/intratech/Kernels/Kernel_I9100XXLPH.7z
[Galaxy S II Original Android Development] ReeX:
Done!

Everything fine with LA2 ;)
[Galaxy S II Original Android Development] It_ler:
I think that flashing only the kernel is not enough.

Try to flash the whole (XXLPB) ROM (PDA section of Odin).

After that you can flash the CF-Root kernel to gain root access again.

Good luck !
[Galaxy S II Original Android Development] shaq1907:
This works LPH firmware too. It would be better to remind it to people who don't know to fix sd card problem.
[Galaxy S II Original Android Development] Ciervo_anonimo:
The problem with this method is that the apps uninstall with the phone turned off. :o

Sorry for my bad english.
[Galaxy S II Original Android Development] shaq1907:
Yes I noticed that I have same problem. I had to restore original kernel because of that.
[Galaxy S II Original Android Development] apeatan:
never mind delete
[Galaxy S II Original Android Development] MacDrunk:
hmm ok but i still update whit kies,,, my firmware

---------- Post added at 12:43 AM ---------- Previous post was at 12:36 AM ----------

but could i still update my firmware whit kies
[Galaxy S II Original Android Development] CamoGeko:
Yes, I don't see amy problem with that.

Logged using an SGS2 type droid while floating in CM9 quadrant...
[Galaxy S II Original Android Development] westcrip:
THANKS........
[Galaxy S II Original Android Development] TehH4rRy:
I am not happy running my leaked ICS rom, my phone just locked up and wouldn't turn on earlier, I made a gingerbread CWM back up before i upgraded, if I use the kernel for the firmware i have will it work for me to restore from that back up? then reflash the CF-Root kernel for my gingerbread FW?
[Galaxy S II Original Android Development] juDGEY2k10:
Thanks works great, i have noticed my phone will reboot now and again, is that anything todo with this? I dont have a custom rom installed just used this.

Cheers :)
[Galaxy S II Original Android Development] hawkagent:
So i'm so confused.

My kernel is KI3.

There are two zip files i can choose from:

CF-Root-SGS2_XX_OXA_KI3-v4.1-CWM4.zip

CF-Root-SGS2_XX_OXA_KI3-42-v4.2-CWM4.zip

The difference is the CF-root version number, 4.1 and 4.2? Where is 5.0?

And what is "secure" kernel and "unsecure" kernel (as referred in the cf root version desciption)?
[Galaxy S II Original Android Development] the guitarist:
i really hope if it's possible that you guys add a BLN Support to the next kernel .. so that we can use the BLN APP to use the backlight of the buttons for notifications ..

thanks
[Galaxy S II Original Android Development] Gawis:
don't know if it's kernel related but am also looking forward to using this app..
[Galaxy S II Original Android Development] duryard:
One problem that I have after rooting using this method is that Kies no longer recognizes the phone. Not a big problem but annoying sometimes. Any solutions to this?
[Galaxy S II Original Android Development] ams84:
i have KE7 [CF-Root v3.6] do i need to upgrade to v3.7??
[Galaxy S II Original Android Development] johnsonc:
Mine is being recognized ok. I'm on stock KE7 with CF-Root 3.7.
[Galaxy S II Original Android Development] TAEL:
Any plans for including CWM 4?
[Galaxy S II Original Android Development] Lio78:
.....and initramfs? :D
[Galaxy S II Original Android Development] android_master:
How to get rid of this yellow button symbol at the start,do we just need to flash the stock kernel with odin...or there is another process after that

because as soon as i install stock kernel via odin,phone reboots w/o a yellow sign,after that i go to cwm to flash the kernel{for rooting} but after that phone reboots and get stuck at samsung galaxy s2 logo only..
[Galaxy S II Original Android Development] DaFileFather:
If you have problems with the factory reset. then 3.7 is yours. :cool:

if nothing wrong with 3.6 then you can stick with that...

it is up to you man.
[Galaxy S II Original Android Development] jessiemelo:
Hey Chainfire, I purchased a Galaxy S2 on ebay and it is locked to O2. It has the O2 bootscreen but there is nothing else on it from O2 ie. settings, store..etc. The browsers home is the O2 active website. I have KE2 firmware at the moment which is the original firmware that came with the phone. My question is should I be extremely concerned with Rooting the phone. I've come from an HTC HD2 which i rooted and flashed many different roms such as MIUI and many others..so I am aware of the risk. Please let me know what you think.
[Galaxy S II Original Android Development] DaFileFather:
Your phone is branded. Search the dev section for branded stock rom for O2.

i think i saw it there.

If it is there .. then there is nothing to worry about. you can root and go back to stock when you need ur warranty etc.

But if you don't care about warranty issue, then just follow the steps at OP for flashing KE2 CF Root. Or upgrade to KE7 stock rom first and use CF Root 3.7 for KE7.

Really simple. ;)

edit: here is the branded O2 ROM .. thanx to Intratech
[Galaxy S II Original Android Development] the guitarist:
it is .. to use the app the kernel must supports it .. it's written in the app description at the market.

so is it possible ?
[Galaxy S II Original Android Development] jessiemelo:
Follow the steps at "OP"? So I can use the steps on the first page of this thread?

Thanks for your help by the way.