Root galaxy s2 2.3.4 jpkh8 - Galaxy S II Q&A, Help & Troubleshooting

Hi, i really need some help on how to root this device
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enniocharchar said:
Hi, i really need some help on how to root this device
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Click to expand...
Click to collapse
Have a look here => http://forum.xda-developers.com/showthread.php?t=1075278
In the first post, there is a Quick Root Guide.
For you old firmware, the second (DooMLoRD's zergRush exploit) method might still work.
That is very easy and will not increase the flash counter.
Good luck.
P.S.: As your firmware is very old, you really should consider to flash a newer ROM. Maybe you should create a complete system backup in CWM recovery (=> nandroid backup) after rooting. Then flash a new ROM. And if it does not work or you don't like it, you can restore the backup again to go back to your current system.
As soon as you are rooted, you can use Mobile Odin app to flash other stock firmware versions and/or custom kernels without increasing the flash counter.

Does this erase any memory in my mobile?
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Rooting wont erase anything, but flashing a new firmware/rom will. Won't erase your pictures, music etc but will delete your apps, contacts and messages. You can always make a backup of your contacts and messages using apps like SMS backup+
Once your rooted, you can make a backup of your apps with titanium backup.
This is a very common doubt.Search the forums for more information.
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The fist methode didnt work ca someone describe me another way not very complicated plzz really need some help thanks
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Related

First custom firmware on this phone

Hi there. Im going to try the litening Rom tonight. But Im worried about exactly what kind of data loss i will experience. Apps? Contacts? Etc.
Also. Can i just follow the tutorial on the custom Rom thread. Or do i need to root before hand. Or will odin do everything.
Many thanks for any answers
Jb
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ODIN will do everything. The rom, the apps, the root, everything.
You will lose your apps, unless you back them up with something like Titanium Backup from the market, you can always download them again though. But that will make you lose your settings.
Contacts are stored on your google account, http://contacts.google.com, you can manage them at the site by the way.
Once you installed your new rom, you can login using your gmail and your contacts will be restored.
I didn't think titanium worked on unrooted devices?
thanks for your reply. What about stock Rom?
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Follow the instructions to root your device if you want Titanium pro to backup apps .
Follow instructions on the individual custom rom page to install a rom .
If instructions say use Odin use Odin if they say use CWM use that dot make your own rules up .Dont start until you know what you are going to do and in what order .
jje
Thank you for your help
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I have tried searching for a thread on how to root stock Rom. But can't find an thing. Do you have a link please?
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http://forum.xda-developers.com/showthread.php?t=1103399
jje

How to root first time without pc.

Hey buddies,
I left my laptop at my sisi's place and now when i want to root my s3 i can not find a way to do it for the first time.
even i cant install any kernel using stock recovery as it says signature verification failed.
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As far as i know i really need! a computer to root ur phone ...
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abhiwltya said:
Hey buddies,
I left my laptop at my sisi's place and now when i want to root my s3 i can not find a way to do it for the first time.
even i cant install any kernel using stock recovery as it says signature verification failed.
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Click to expand...
Click to collapse
I think u could use mobile odin....
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Pretty sure you already need root to use mobile odin.
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There is no way. For the first time you have to use a computer.
mobile odin requires root.No other way?
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abhiwltya said:
mobile odin requires root.No other way?
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Click to expand...
Click to collapse
just over pc or mac! no other way trust me
Yep. Initial root requires a computer.
If you really need to root right now, download Odin and CF-Root on your phone and ask someone to borrow their computer or use a public computer. Move the files to the computer and root it in less than one minute and you're done!
i have a few questions maybe you guys can help... so here we go:
when you root with odin, it unlocks the phone giving you su right. does this also change your rom?
how is the launcher different than the rom? difference between flashing rom and kernal?
last one... when you install a custom rom, can you delete it if there are bugs to reinstall a different one or use the stock?
lostsoul565 said:
i have a few questions maybe you guys can help... so here we go:
when you root with odin, it unlocks the phone giving you su right. does this also change your rom?
how is the launcher different than the rom? difference between flashing rom and kernal?
last one... when you install a custom rom, can you delete it if there are bugs to reinstall a different one or use the stock?
Click to expand...
Click to collapse
1. No
2 launcher is just your homescreen with apps and widgets, rom is whole firmware with all system files etc
3. Yes
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Can i Keep my files?
Can i root my phone without wiping it and having to install all my apps and settings again?
ramonguthrie said:
Can i root my phone without wiping it and having to install all my apps and settings again?
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Click to collapse
yes no wipe is required
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what's the use of rooting the thing if you're going to keep everything the same?
DeltaBlast said:
what's the use of rooting the thing if you're going to keep everything the same?
Click to expand...
Click to collapse
Rooting gives you loads of possibilities.Read.
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DeltaBlast said:
what's the use of rooting the thing if you're going to keep everything the same?
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Click to collapse
by rooting you can remove some bloatware on the phone.
try this Framaroot
Deleted

rooting my phone????

Now then guys... i am thinking about rooting my phone to put jelly bean on my samsung galaxy s2 .... i was just wondering views on which is the best one to go for ( LINKS PLEASE ) and is it easy to do you know the usual questions you will have heard them before lol IM A NEWBIE !!!
Cheers People
Download Siyah 3.5.2.
http://www.gokhanmoral.com/gm/2012/07/29/siyahkernel-s2-v3-5/
Tar for Odin.
Then use this guide.
http://www.androidauthority.com/galaxy-s2-i9100-root-android-4-0-3-ics-xwlpd-88120/
Nevermind it says Cf-root. I flashed my Siyah kernel that way.
After that, flash any rom you want in recovery. Just do a Nandroid backup in recovery and backup apps with Titanium backup from Market!!!
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Don't restore apps after flashing newer ROM, cause your phone will bootloop.
Better create text file and write names of installed apps.
Im not sure why everyone is worried about backing up there apps ive flashed about a 100 roms and never had to back them up cause if u go to the play store under my apps there always there
Infact there are apps there id forgotten about just pick which ones u want and re install .some roms auto instal them for u .make sure you have a google acc obviously!
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Some want the data
Not
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-Grift- said:
Some want the data
Click to expand...
Click to collapse
What type of data? Music and photos are saved to the external SD card for me, and as for game save data, I believe that is externally backed up as well.
themadba said:
What type of data? Music and photos are saved to the external SD card for me, and as for game save data, I believe that is externally backed up as well.
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Click to collapse
Only if the application is on the external memory card then it's backed up there. Otherwise they'll loose the data if that's not the case.
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it says in tutorial to use CM9 do i have to ??
przemcio510 said:
Don't restore apps after flashing newer ROM, cause your phone will bootloop.
Better create text file and write names of installed apps.
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Click to collapse
Rubbish!
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If you restore from google play, you loose all your app settings and you will have to reconfigure each app.
Also, Google Play will not show apps installed offline (apk)
Restoring app data with third party app like titanium backup is safe if app is compatible with the target rom
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one more question after i done tht tutorial how do i flash the rom to my phone?? and then how would you put another one on if i gt bored of tht one ?? cheers
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CWM-and have you bothered reading a Rom thread as there's normally install instructions.
And when I get bored of a rom I just restore my nand backup of something previous.
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yes but it kinda seems all confusing for me shall do i just do what the tutorial from the first page .... download a rom then when i have done all the instructions do i just install the rom
jasper69 said:
yes but it kinda seems all confusing for me shall do i just do what the tutorial from the first page .... download a rom then when i have done all the instructions do i just install the rom
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Click to collapse
in order to install a perticular custom rom , all u have to do is to follow the install instruction's of the same in there OP. and the same applies to all other roms also.
since installation instruction do vary from one custom rom to another
Jasper,you are better to read up on things so you are familiar with the processes of like rooting/kernels/roms/cwm/Odin/troubleshooting.
I understand reading 1000s of posts is tedious,but you could end up with a non working phone.
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so i succesfully flashed Siyah 3.5.2 onto my phone now on to flashing the rom onto my phone
Done it people I officially have flashed paranoid android hybrid 1.9.5 cm10 on my galaxy s2 yet .... the newbie is not a newbie anymore ... anything else I can do with my phone ????
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jasper69 said:
anything else I can do with my phone ????
Click to expand...
Click to collapse
Yeah,make a nand backup asap.
ps-when people take their valuable time to help you,they appreciate people hitting the "thanks" button.
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And how ex actly do o make a band back up and what is it used for ? And there is no thanks button to press :s
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Unroot S3 for Kies update

Hello guys,
I just started playing around with Android/ROMs/etc so forgive me in advance for what probably is a noobish question..
I rooted my i9300 using CF Root, and then tried a few ROMS.
Although, for the time being i decided to stick to the stock. Had it restored through CWM backup/restore function (Nan I believe).
But now, when I try to update it through Kies it says that the firmware version is not compatible.
I checked around and I've seen that I could flash the stock ROM and it would fix, although I would lose everything i have right now.
Wouldn't "unrooting" fix my problem? I mean, from what i can figure out, it's just copying cache.img and recovery.img to my 'boot'?
If so, wouldn't just putting back the stock files 'deceive' to update it?
Thanks a lot!!!
syspt said:
Hello guys,
I just started playing around with Android/ROMs/etc so forgive me in advance for what probably is a noobish question..
I rooted my i9300 using CF Root, and then tried a few ROMS.
Although, for the time being i decided to stick to the stock. Had it restored through CWM backup/restore function (Nan I believe).
But now, when I try to update it through Kies it says that the firmware version is not compatible.
I checked around and I've seen that I could flash the stock ROM and it would fix, although I would lose everything i have right now.
Wouldn't "unrooting" fix my problem? I mean, from what i can figure out, it's just copying cache.img and recovery.img to my 'boot'?
If so, wouldn't just putting back the stock files 'deceive' to update it?
Thanks a lot!!!
Click to expand...
Click to collapse
Use triangle away to reset counter, flash an unrooted stock Rom, do a factory reset, that should be or. You will be unroted and original status. Please correct me if I am wrong. There are also a lot of how guides here in the forum and on YouTube!
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chrismast said:
Use triangle away to reset counter, flash an unrooted stock Rom, do a factory reset, that should be or. You will be unroted and original status. Please correct me if I am wrong. There are also a lot of how guides here in the forum and on YouTube!
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Click to expand...
Click to collapse
There are yes, but everything I saw meant flashing a stock ROM, and i really just wanted to use the backup that i have in CWM backup tool.
syspt said:
There are yes, but everything I saw meant flashing a stock ROM, and i really just wanted to use the backup that i have in CWM backup tool.
Click to expand...
Click to collapse
your backup is rooted
Glebun said:
your backup is rooted
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Well crap.. that was surprisingly obvious.. Thanks! I guess I'll just have to flash it then!
syspt said:
Well crap.. that was surprisingly obvious.. Thanks! I guess I'll just have to flash it then!
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Click to collapse
You could try to flash your backup and remove root with the su app
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chrismast said:
You could try to flash your backup and remove root with the su app
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Click to expand...
Click to collapse
It was a great idea. Just did that, but apparently the firmware is still not compatible..
I also still see the CWM app in my app list..
Actually, rooting shouldn't interfere with updating via Kies, only OTA. That's what I read. Do you have the correct firmware region?
well its the one that came with the phone, so should be right.
would the cwm cause this? could i put back the original recover
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syspt said:
well its the one that came with the phone, so should be right.
would the cwm cause this? could i put back the original recover
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Click to expand...
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Possible simple answer is joi xda and flash stock rom via odin.
jje
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Need galaxy s2 backup

I need galaxy s2 backup via clockworkmod to restore it
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mr_nobody992 said:
I need galaxy s2 backup via clockworkmod to restore it
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Click to expand...
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Look for the stock rom and flash from there its not recommend to restore from someone else's backup ur guaranteed a brick and paperweight device
And it would be better if we had a model # and carrier to find a stock ROM for u
crashpsycho said:
Look for the stock rom and flash from there its not recommend to restore from someone else's backup ur guaranteed a brick and paperweight device
And it would be better if we had a model # and carrier to find a stock ROM for u
Click to expand...
Click to collapse
I mean that i need someone to backup his galaxy s2 via cwm and send me the backup
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mr_nobody992 said:
I mean that i need someone to backup his galaxy s2 via cwm and send me the backup
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Click to collapse
I doubt someone will send you that data because its there content and what I explained earlier about bricking your device still apply
Not a good idea
I do not know why you are asking for this, if you are trying to get the stock ROM you can find it on sammobile.com, We can help you better if you explain us what's the problem.
Or just flash a Rom in recovery man. No one is going to give you a cwm backup considering all of their private information would come with it.
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pls send me the of the ics rom

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