yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] wjbjnr:
Hi there, I must say this is a perfect forum to discuss about root and that's exactly what I was looking for.

I just bought Galaxy S2 (i9100) which came pre-installed with ICS 4.0.3 XXLPS.

My problem with this device is that it's CPU speed doesn't exceed 800MHZ no matter what I do. Despite ANTUTU showing good benchmarks, I experience lags in playing games like asphalt 6, CPU SPY shows that cpu runs at 800 MHZ (it runs on 1200MHZ just for few seconds) during gaming. I saw an app on Google Play "Set CPU" which lets you set CPU speed, but it's for rooted devices only.

My question is, by just rooting my device using CF method (by just putting CF file via Odin) , will it let me use apps like AdFree/SetCPU?. I don't intend to flash custom roms like CM and Siyah, I just want to root my Stock ICS XXLPS to gain access to those apps. I'm happy with stock ICS as it is.

With only that requirement, I won't need to install CWM right?.. Also since I'm ultimately using the stock rom, it will not increase the Custom Binary Download counter/flash-counter?. I understand that rooting voids warranty but if i flash the stock ICS rom again, it will automatically Un-root the device ?, leaving behind no trace of ever rooting the device?.

Lastly, will the stock ICS perform normally when rooted?. I mean no additional issues like Wifi , messaging etc. Thanks in advance :)
[Galaxy S II General] kishan366:
If you dont want yo increase download count and just want to use root apps like set cpu .. then root your phone without using cf root i.e. Boot your phone into stock recovery , flash cwm.zip from stock recovery as externel update than it will make your phone boot into cwm recovery then flash superuser from cwm .. it will root your phone wont increase download counter as you have not flashed any insecure kernel ... for more infornation try to search the topic root stock ics without flashing unsecure kernel ....read tgus thread http://xdaforums.com/showthread.php?t=1501719
[Galaxy S II General] wjbjnr:
You mean to say that I shouldn't follow this kind of guide for rooting : samsungmobileclub.com/root-your-galaxy-s2-i9100-running-on-xxlps-ics-4-0-3-firmware/
[Galaxy S II General] kishan366:
Its cf root method but it will increase your download count and also make the yellow triangle appear ... but using the method i mentioned wont increase the count .. and you will also dont need pc .. its your choise to root your phone via either of these mehods .. both would root your phone .. but the one i mentioned is easy and less risky to brick your phone ....
[Galaxy S II General] wjbjnr:
Thanks man!!!. you just made my day!. What you told was exactly what I was looking for.. i searched it and found this forum :xdaforums.com/showthread.php?

t=1501719

Already rooted and now am gonna test apps now :) :D
[Galaxy S II General] kishan366:
welcome ... and if you boot your phone into stock recovery and flash cwm and MAKE A NANDROID BACKUP and my advice is that DONT WIPE ANYTHING .. make sure your phone doesnt have the brickbug .. you can find that using chainfire's app : Gotbrickbug? ....
[Galaxy S II General] DomButcher:
I think that app is not made by Chainfire and it is called "eMMC Brickbug Check" or something like that...
[Galaxy S II General] wjbjnr:
I just tried out the Brick Bug app... It's giving me Revision : 0x9, A.K.A UNKNOWN.

Verdict : unknown chip, don't know if it's dangerous. At least it's not one of this listed in bad.

So, I'm safe then ?
[Galaxy S II General] kishan366:
Maybe .. you could be safe ... though i have got the brickbug .. it doesn't brick your phone untill you wipe anything .. but you could recover your phone ... and samsung is working to fix this ... and make sure you have a NANDROID BACKUP ... and dont wipe anything ... the brickbug was still there even if you haven't rooted your phone .... so dont worry .. just wait for someone to fix this ...
[Galaxy S II General] kishan366:
The one i used was : Gotbrickbug? .. ... and it is developed by chainfire ... maybe you would have used a another app ....
[Galaxy S II General] jovana140:
Please help!

I am trying to root my sgs2, but the old traditional way is not working for me for the simple reason that my home button is broken.. And every time that i try it with CF Root or any other program, he is giving me an error saying- Read only file.. I really dont know what to do anymore.. ppffff :(

I hope that this time i am in a good place to ask.. :fingers-crossed:
[Galaxy S II General] kishan366:
If cf root doesnt work than you can try this method :

Boot your phone into stock recovery ( i think you will need home button for that .. lol ... )

flash cwm.zip as an exrernel update ..

that will make your phone boot into cwm recovery .. flash busybox and superuser fron cwm ( I think you will be knowing about cwm recovery ) ... this will root your phone ... foe detailed instructions .. follow this thread : http://xdaforums.com/showthread.php?t=1501719
[Galaxy S II General] wjbjnr:
Hi guys,

I recently discovered that upon dialing *#1234#, my CSC is listed : Unknown. Is that because I rooted my phone (Non CF-root Method) ?. I don't know if it was present before rooting but can this prove to be a problem?

Also, I'm running stock XXLPS (4.0.3) on my Galaxy S2, if I want to upgrade to 4.0.4, first I would have to unroot my phone by using method discussed in this forum : http://xdaforums.com/showthread.php?t=1501719 and then normally flash via ODin right ?
[Galaxy S II General] The-Hulk:
you should have a CSC, andf i am not aware of the reason for you not having it, although it is not that important as it onlt holds carrier brander software mainly and APN's which you have. Also to get back to stock 4.0.3 so you can update to 4.0.4 you would just need to flash firmware through Odin that is a match to your previous firmware.
[Galaxy S II General] Daft*mau5:
@s.d.oconnor

sorry for the irrelevant question but it's a must as i'm a complete noob to sgs2

i used to own a xperia x8 -back then i used to be a super noob-

what's the cleanest way to root s2 with the perfect balance between functionality and safety

would be very thankful for help

-edit: another stupid question say i'm going to install siyah or n.e.a.k ics kernel -which is better?- do i need to root first or when i flash them through odin the phone becomes automatically rooted-
[Galaxy S II General] The-Hulk:
The best way to root in my opnion is CF-Root by Chainfire, have a look in my Sig for the link and as to what kernel is better that is a personal choice as each kernel serves people in diffrent ways. (although i personaly use Siyah)
[Galaxy S II General] neol56:
after using cf root...

hello,

thanks for support thread. much appreciated. need some help.

-------------------------------------------------------

samsung galaxy S2 -- international version - India

Stock Android 4.0.3 XXLPH

I used the cf root method (noob friendly discussed here - http://xdaforums.com/show....php?t=1126522)

after rooting -

kernal version as per CWM manager installed -

CWM manager V3.15

Current kernal CF-Root 5.2

Kernal version as per settings - about phone

3.0.15-I9100XXLPH-CL118559

------------------------------------------------------------------------------------

after rooting 3 apps got uninstalled and one of them was xda forums app :) now i cant just reinstall those apps back no matter how much i try.

I then installed the triangle away app for removing the triangle and resetting counter and it worked perfect. But a usbjig is more preferred as it is more safe. I then installed titanium backup and did a full backup. I also did a nandroid backup and copied the file on my pc also so if i get my sd card corrupted or formatted i have another backup. i also installed adfree and everything is working fine but just cant install those 3 apps.

i also read that rom manager does not work with cf rooted phones. so apart from rom manager all other root required apps should be working.

I now need assistance in installing CM 7.2 stable version on my phone. i read that cf root method is very close to the stock kernal and my phone's build is XXLPH which is not very common it seems ? can i still install CM or do i need to flash a stock kernal and then root again using a different method as many are saying cf root has some effects on mass storage ? if so then how ? can you point me to some source for method or step - sorry cant find it. how do i correct the mass storage error and be able to reinstall those lost apps ?

thanks again for the time and effort. greatly appreciated. one day when i have learned everything there is to sgs2 i will post a complete guide with everything including apps and guides and hows and sources and resources. :)

---------- Post added at 08:53 PM ---------- Previous post was at 08:48 PM ----------

sorry for reposting i had one more query..

cf root method also does not installs busybox though titanium backup comes with its own version of busybox i have read.

so can i install busybox on a cf rooted phone ? like i cant install rom manager so i cant install busybox also ... or is there a work around ?

maybe i should install a new rom and kernal like cm7.2 stable version and then will be install rom manager and busybox ?

many thanks
[Galaxy S II General] canned.acid:
Update Device after Rooting

Hi ... I would like to know if i will be able to update my HTC One X to Jelly Bean when it is released OTA after rooting my Device by the Once Click method ... I havent rooted my device as of now, however i would like to root it soon provided i am still able to update my device to JB in the future ... I am really new to this stuff so plz help me out ...
[Galaxy S II General] KidCarter93:
I'm not a noobs to android but to rooting and flashing, I am.

I got an S2 off my brother a few days ago and it's already rooted and it's running paranoid android.

My question is, considering I've got CWM installed, can I now flash new roms onto it without needing a computer?

It seems that way from what I've read, but it doesn't seem right to me. Just looking for confirmation either way really.

Any help is appreciated.

Sent from Sony Xperia S using XDA Premium

Join my threads here and here.

Check out this [GUIDE] How to be a New User (and not a noob)
[Galaxy S II General] The-Hulk:
Yes if you have CWM then you can flash roms from your phone, also kernels, mods and themes.
[Galaxy S II General] The-Hulk:
You will need to post this in the correct forum this forum is for the galaxy S2
[Galaxy S II General] The-Hulk:
You can install busy box as most rooted apps need it, also you can just flash CM9 through cwm as it has its own kernel built in, just make sure you do a full wipe as you are comming from a different rom.
[Galaxy S II General] gtalkalot24:
1st Root

Rooted my phone today and installed clockwork mod. Was really easy. Thanks for all the info on the thread!!:laugh:
[Galaxy S II General] laterno:
Help with root

I rooted my S2 a while back but somewhere along the way I lost root access.SU permission denied when I ran Root Check. So my question is how do I save things like contacts, text messages, pictures, videos, apps, etc. Since I don't have root access anymore I'm assuming I can't use titanium backup etc, correct. Can you provide any help in backing these things up. Then I can root back to stock and then start over.

I am a pretty novice user when it comes to the ins and outs of rooting, flashing, etc.

Details...

Model - SPH-D710

Android Version - 2.3.6

Kernel Version - 2.6.35.7-SPH-D710.EL29-CL852097

Build number - Gingerbread.EL29

Thanks in advance for any help!

Lee
[Galaxy S II General] lancecobey:
hehe

hello, and thank you for your info. its helped a lot. I am very new to all of this and have been researching rooting and if I wanted to do it. I do believe I want to. however, I have some questions. First off how and when do I back up stuff and what do I back up? How do I boot load my LG Spectrum(I don't think CWM works with my phone, even still I downloaded it just in case)? which root "way/system" should I use(I've seen quite a few) do I back up my stock ROM after I've rooted?( that's what I think I'm supposed to do from what I've read) once I've rooted my phone and backed things up I have a ton more questions. I have done some c,c++,matlab,VHDL and other stuff I just know how easy it is to mess up. I would rather do it the right way. please help me. :)
[Galaxy S II General] wjbjnr:
A quick question, I have Galaxy S2 i9100 (non "G" version), I noticed that on stock ICS 4.0.4 or 4.0.3 (both Nordic and Poland Roms).... the CPU doesn't go beyond 800MHZ... Even when I'm playing games like Nova 3, the CPU speed won't go beyond 800 MHZ.. I rooted (non cf method) the phone and installed SetCpu pro.. even when I adjust speed to 1200 MHZ, it would lag and then eventually go back to 800 MHZ itself even if I set Min CPU speed 1200.I used Antutu and it states 1200 MHz and I get average scores around 6400. but according to CpuSpy the mobile barely goes to 1200 or 1000 MHz.. IS is just me or is this the problem with stock ICS builds ??

---------- Post added at 04:44 PM ---------- Previous post was at 04:28 PM ----------

uf you just want to root to install app like titanium to backup your ata then follow this simple guide to root your device again :

xdaforums.com/showthread.php?t=1501719

Its super simple to implement, i also use this root method to use apps like titanium and backup my game's data.
[Galaxy S II General] BazzaR22:
Thanks so much for the guides!!!! It has been a great help in the process of rooting.:good::good:

I have rooted and installed all relavant backup apps, and done the back ups. Now going to flash some new ROMs:D
[Galaxy S II General] -Grift-:
Found a good way to go custom but still have unrooted stock rom to fall back on...

1. Get the touch recovery from Rom Manager website (Not sure about other recoveries)

2. Boot into stock recovery (Home + Volume Up + Power)

3. Flash the CWM touch recovery

4. New CWM opens up (its temporary and will disappear after reboot)

5. Make a backup

6. Flash any rom you want

7. Wipe data/cache (factory reset)

8. Flash custom recovery

9. YOU ARE NOW ON CUSTOM ROM!!! (Reboot...)

10. Need to bring phone to samsung?

11. Restore earlier backup

12. Phone should be stock, no root, stock kernel, stock recovery STOCK EVERYTHING!!!

13. Bring to samsung

This way there is no yellow triangle and no need for PC :D
[Galaxy S II General] The-Hulk:
I like this i will add to OP, do i need to give credits to anyone else other than you.
[Galaxy S II General] -Grift-:
I don't think so .. I was in school with limited resource and a stock phone so I got creative :p better tweak it a bit.
[Galaxy S II General] The-Hulk:
Once you have a fully tweeked and happy to go method, let me know and i will add it to the OP, you should also concider starting a thread for this as an alternative method to root your phone.
[Galaxy S II General] -Grift-:
No use making another thread and get flamed :/ Will tweak it and pm you.
[Galaxy S II General] kishan366:
there is already a thread on this method ... and I have rooted my phone via this method and this method is very easy ... so give credit to him : http://xdaforums.com/showthread.php?t=1501719
[Galaxy S II General] edlimym:
hi there. i followed this thread ------> nice one. thanks Phil3759

http://xdaforums.com/showthread.php?t=1746794
[Galaxy S II General] sirajuddin:
Thanks for EFS tip and all

When I first rooted my phone, I had most of the things mentioned here, but not backed up efs

this might just save me
[Galaxy S II General] :
my phone not starting . . .

i rooted my htc explorer successfully . . . . after that i got jaggyjag`s ROM when i was installing it in the recovery mode is said installation aborted and now my phone is not staring . . . .tell me what to do now
[Galaxy S II General] stanvalp:
thanks sd oconner. very informative and helpful. i will referance this thread often.
[Galaxy S II General] neol56:
hello,

thanks for reply...

i read that i should have bootloader lower than lph ?? where can i check my bootlader version ? it says i need to install cm resurrection first.

here is the source - http://teamhacksung.org/wiki/index.php/Experimental:GT-I9100:How_to_install

here are my details -

----------------------------------------------------------------------------------------------------

Details:

samsung galaxy S2 -- international version - India

Stock Android 4.0.3 XXLPH

I then rooted my phone using the chainfire's noobs friendly method discussed here - http://xdaforums.com/show....php?t=1126522

after rooting -

kernal version as per CWM manager installed -

CWM manager V3.15

Current kernal CF-Root 5.2

Kernal version as per settings - about phone

3.0.15-I9100XXLPH-CL118559

--------------------------------------------------------------------------------------------------------------------------

so does this means i have LPH bootloader ? so i should follow the above guide or directly flash cm9 using this guide - http://wiki.cyanogenmod.com/wiki/Samsung_Galaxy_S_II:_Full_Update_Guide

will it affect my phone if i simply follow the resurrection method... just to be safe ?

thanks.
[Galaxy S II General] maf1otul:
Good job, realy nice guide, thanks a lot:good:
[Galaxy S II General] neol56:
alrighty..

just to let the others know....

team hacksung's guide mentioned in my last post works great. my s2 is running cm9 rc2 perfectly without any noticeable bugs and i just restored all my apps+data using titanium backup pro...

super..... thanks for the help and support.
[Galaxy S II General] leongohan:
thanks a lot guy :good:
[Galaxy S II General] ares05:
Great thread! Helps a newbie like me. I have got a doubt and I hope you can help me with it.

What exactly is the right way to move from one custom ROM to another? Every ROM developer specifies these basic instructions before flashing on their ROM:

Wipe data

Wipe cache

Wipe Dalvik

Is this sufficient no matter what ROM you are coming from and no matter what ROM you are going to? Most ROMs have kernels bundled with them so is it advisable to run a kernel cleaning script also before you install a new ROM?
[Galaxy S II General] The-Hulk:
Their is no need for a kernel cleaning script when moving roms, just the 3 wipes data, cache and dalvik, if you are updating the same rom then you only need Cache and Dalvik.
[Galaxy S II General] ares05:
Thanks for clearing that up for me!

One more query :p

Does it matter what we use to flash kernels and ROMS, Odin or CWM? Is one comparatively safer than the other or any other distinctive advantages?

Sent from my GT-I9100
[Galaxy S II General] The-Hulk:
You can only use CWM to flash a .zip file and nearly all custom roms come as .zip files, you can only flash .tar files through odin.
[Galaxy S II General] -Grift-:
CWM or recoveries are easier and safer to use for me and they dont cause the ugly yellow triangle at boot :D
[Galaxy S II General] ares05:
Another noob doubt..

Is a Nandroid backup a complete backup of the ROM, kernel and system & user data at the time of backup? Similar to the time machine on the Mac or the system restore on a PC?

Sent from my GT-I9100
[Galaxy S II General] terence23a:
After Rooting for FIRST TIME ROOTER'S

1. CWM in recovery is a MUST! we have a thread here for the latest build : CLOCKWORKMOD-RECOVERY FOR GALAXY S II (GT-I9100)

2. Install a Good Stable Kernel I'm using: SiyahKernel S2-v4.0.1

3. Install SET CPU and Overclock or Undervolt etc to get the most out of the performance or battery refer to : [REF][TWEAKS] Kernel Governors, Modules, I/O Schedulers, CPU Tweaks, AIO App Configs for knowledge of what u can do with the additional features that u get with your kernel

later on you can work on ROMS to get more out of your device!

Terry
[Galaxy S II General] shamiedz:
what is the different galaxy sII gsm and galaxy sII cdma sprint/verizon, what is better?
[Galaxy S II General] The-Hulk:
I would always go for the Samsung Galaxy S2 i9100
[Galaxy S II General] -Grift-:
It backs up system, boot(kernel), cache, data(apps and other data) etc. yes its a complete clone of whatever you have at the time of backup.
[Galaxy S II General] HAXTREME:
I dual booted my SGS2 with Siyah kernel. If I want to change the secondary ROM I installed, do I have to perform all the steps I performed the first time around? ie. wipe 2nd ROM data/cache and dalvik cache? I'm sorry if its already been answered somewhere else, I did try searching
[Galaxy S II General] The-Hulk:
If you are changing rom then yes you will nedd to carry out a fully wipe of the 2nd rom
[Galaxy S II General] eduardoroeder:
I never understood what nandroid backup was, so thank you for helping us. So to do it i need just to do a backup from cwm?

;D
[Galaxy S II General] HAXTREME:
Thanks. Is that only if you're changing ROMs? ie. from say Resurrection remix to RootBOX? What if you're just switching to a different version of the same ROM? like going from RR 3.0.2 to RR 2.6.1?
[Galaxy S II General] The-Hulk:
If it is the same rom then you only need to wipe cache
[Galaxy S II General] musad13:
Very complicated
[Galaxy S II General] ares05:
Yup. Or you could get into recovery mode and do it.

Sent from my GT-I9100
[Galaxy S II General] HAXTREME:
would encrypting the phone cause problems while changing ROMs?
[Galaxy S II General] khanguyen519:
I flashed a rom and a custom theme. I like the features of the theme but not it's themed icons. How do I get back the original icons while still using features of that theme?
[Galaxy S II General] WhoIsJohnGalt1979:
Modify the theme if u know how to do so... There are many tutorials in the theme section which guide u through basic theming namely changing icons etc... All the best...

Ps: a jog through my memory throws up names like gabowinter, silenceroflambs, dully79 who have written tutorials to mod themes etc.

---------- Post added at 11:45 AM ---------- Previous post was at 11:41 AM ----------

Yes
[Galaxy S II General] Artydroid:
Update

Hi, I am really new to Android and the whole rooting process. Is it possible for me to update my AT&T Samsung Galaxy SIII while I am rooted? I don't really care if it gets unrooted. I just want to have my phone up to date.
[Galaxy S II General] ghegpatatas:
is busybox really a must have?
[Galaxy S II General] Nostrummare:
thx for this guide
[Galaxy S II General] Cr3ck3r5:
You could use rom toolbox pro.

it comes with the option to download and install different icons
[Galaxy S II General] n00BXperia:
Bookmarked :) :D
[Galaxy S II Q&A, Help & Troubleshooting] Sebalos:
Hi, Kies doesn't recognize my phone.

I have flashed CheckROM RevoHD v6 on my device (kernel xwla4). Is it common that Kies doesn't recognize device or it should by normaly found?

Any solution...?
[Galaxy S II Q&A, Help & Troubleshooting] zouz0una:
When you say doesn't recognize you mean doesn't connect with the phone at all or it connects but doesn't show the name and stuff???

Kies stucks some times... There is no problem of the Rom it should found it... Try (if you haven't already) unplug the phone sometimes and try it again.. Mine stucks all the time.. It should be ok.. at some point

Tell me if anything changed..
[Galaxy S II Q&A, Help & Troubleshooting] JJEgan:
Try all the other Kies wont connect to my phone posts for answers .

jje
[Galaxy S II Q&A, Help & Troubleshooting] Sebalos:
My pc is recognizing the phone but Kies do exactly nothing, sorry not nothing some error occur. I will check again and write exact error description.

Already read most of them and checked without success, maybe I ve missed some important one.
[Galaxy S II Q&A, Help & Troubleshooting] Mr.Greg:
Uninstall kies from you pc, then install back.
[Galaxy S II Q&A, Help & Troubleshooting] ctomgee:
Kies works with custom ROMs? That's news to me. :|

If you want Kies to work (especially for using Kies to get new firmwares) you should probably go back to stock.
[Galaxy S II Q&A, Help & Troubleshooting] Tool-kit:
It's normal bud, checkRom does not come with the Kies MTP app. I had the same issue. If you want to update via kies. Then go back to stock ROM and Kernel
[Galaxy S II Q&A, Help & Troubleshooting] Sebalos:
I had checked it already, nothing.