I was going to root my S2 today as I have had it for a while and want to root and update my rom or install a custom rom. CF hasn't made an insecure kernal for KH2. A few users had the same problem and used KH3 as stated by CF but some ended up running into difficult problems and some had no problem.
Should I use KH3 to root or should I use another method. I only want to root gingerbread so I can back up app data. I might then factory reset and update the stock rom or flash CM10 and then restore the app data.
Try using siyah kernel, same process...flash via Odin but with siyah there is a .zip and a .tar make sure you choose tar
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bhavik_sheth said:
I was going to root my S2 today as I have had it for a while and want to root and update my rom or install a custom rom. CF hasn't made an insecure kernal for KH2. A few users had the same problem and used KH3 as stated by CF but some ended up running into difficult problems and some had no problem.
Should I use KH3 to root or should I use another method. I only want to root gingerbread so I can back up app data. I might then factory reset and update the stock rom or flash CM10 and then restore the app data.
Click to expand...
Click to collapse
Firstly, CF-Root doesn't use insecure kernels, it uses modified kernels, but thats OK. Here is a link to a one click root solution made by a reputable developer: http://forum.xda-developers.com/showthread.php?t=1125414
Scroll down the first post and you shall find the instructions. I believe the second post has a link to all the insecure kernels, including KH2 (I checked), and if you scroll down that link a little more, you shall find your original KH2 kernel to flash back to stop the yellow triangle showing at boot, but if you are immediately flashing a custom ROM, that is fine.
This method however will not grant you ClockWorkMod so you can flash a kernel such as Siyah Kernel, make sure to download the GB kernel, not the latest ICS kernel! Here is a link to the GB kernel: http://www.gokhanmoral.com/gm/2012/03/19/siyahkernel-v2-6-14/
Flash this using Odin. Put the .tar file in the PDA section on Odin once you have put your phone in download mode, killed off any Kies processes on your computer, and click start. This will add a new custom kernel to your phone, granting you ClockWorkMod Recovery, allowing you to flash a custom ROM.
Before progressing any further, back up your phone by booting into CWM (home button + power button + volume up button).
Also, download EFS Pro: http://forum.xda-developers.com/showthread.php?t=1308546 This tool backs up your EFS folder which contains your IMEI which can be damaged easily when flashing custom ROM's and you don't want to do that!
themadba said:
Firstly, CF-Root doesn't use insecure kernels, it uses modified kernels, but thats OK. Here is a link to a one click root solution made by a reputable developer: http://forum.xda-developers.com/showthread.php?t=1125414
Scroll down the first post and you shall find the instructions. I believe the second post has a link to all the insecure kernels, including KH2 (I checked), and if you scroll down that link a little more, you shall find your original KH2 kernel to flash back to stop the yellow triangle showing at boot, but if you are immediately flashing a custom ROM, that is fine.
This method however will not grant you ClockWorkMod so you can flash a kernel such as Siyah Kernel, make sure to download the GB kernel, not the latest ICS kernel! Here is a link to the GB kernel: http://www.gokhanmoral.com/gm/2012/03/19/siyahkernel-v2-6-14/
Flash this using Odin. Put the .tar file in the PDA section on Odin once you have put your phone in download mode, killed off any Kies processes on your computer, and click start. This will add a new custom kernel to your phone, granting you ClockWorkMod Recovery, allowing you to flash a custom ROM.
Before progressing any further, back up your phone by booting into CWM (home button + power button + volume up button).
Also, download EFS Pro: http://forum.xda-developers.com/showthread.php?t=1308546 This tool backs up your EFS folder which contains your IMEI which can be damaged easily when flashing custom ROM's and you don't want to do that!
Click to expand...
Click to collapse
What if I want to just update my S2 to the latest stock rom and not have a custom rom. Do I have to flash back to the original kernel to be able to update the stock rom? Once I update to the latest stock rom, will my phone still be rooted or will I have to root it again?
You would have to root it again. But Chainfire should have all the modified kernels for 4.0.3 ready for your use anyway.
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So after I flash the insecure kernel to root my phone (gingerbread), shall I flash back to the original kernel?
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Yeah it stops the yellow warning triangle being displayed at boot. Your custom flash counter will increase but it can easily be reset by buying a USB jig off eBay.
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So I should flash back to original kernel and then update to ics and then root again?
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Or just flash Siyah kernel via Odin and then flash a custom ROM which should automatically root your phone. If not, just find a CF-Root kernel for your firmware and all shall be good.
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There isn't a CF-Root Kernel for me which is why I created this thread to ask for the second best method to rooting a gingerbread S2 or if I should use KH3 CF-Root Kernel to root. I'm only rooting so I can back up app data using titanium. This is my first time rooting and flashing and I was going to root using CF-Root until I couldn't find a modified kernel for me.
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I told you how to in my first post, what are you on about! You haven't thanked anyone for any help, so I'm finished helping you. God sake.
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Related
Hi,
Firstly I will mention I'm a noob. I hgavent installed a modified ROM before, I currently have the latest 2.3.5 KJ2 firmware which I flashed using ODIN.
I want to installed a modified ROM mainly to get a digitial battery display in percent on my notification bar. However it appears all these modified ROMS require flashing through your SD card. The problem is I dont have an SD card. Is there a way to do this through USB only (i.e. Odin)?
Also what ROM and kernel would best suit my simple needs?
Jamie1029 said:
Hi,
Firstly I will mention I'm a noob. I hgavent installed a modified ROM before, I currently have the latest 2.3.5 KJ2 firmware which I flashed using ODIN.
I want to installed a modified ROM mainly to get a digitial battery display in percent on my notification bar. However it appears all these modified ROMS require flashing through your SD card. The problem is I dont have an SD card. Is there a way to do this through USB only (i.e. Odin)?
Also what ROM and kernel would best suit my simple needs?
Click to expand...
Click to collapse
save the rom of your choosing on your phones usb storage...there you can flash it easily...so download rom and you will find it if you go in my files then search the folder download and it should be there ready for you in a zip file..
just follow the instructions at the main page of the rom thread that you want to flash and you should be fine..
first though if you are not already make sure you flash a cf root kernel so you get rooted and then go ahead and flash a rom....once you have cf on then you should have cwm were you can flash your rom through there...
http://forum.xda-developers.com/showthread.php?t=1103399
follow the guide in that link (im sure you have done but its late here so sorry) and then will see you have cwm and then flash your rom of your choosing
I'm rooted but I rooted the old way --> flashed an insecure kernel, downloaded this program called S2 root and rooted via USB, then flashed the original kernel back. It appears that by doing it this way, I don't have clockworkmod recovery..
Should I always flash using the way you said?
Ok.. so let me go through the process..
1) Get a CF root Kernel which will allow me to have cwm. Question: Does the kernel version always have to match the 'ROM' version? When I updated to KJ2 I see that under phone info the 'Baseband Version' reads I9100XXKI4. Does baseband mean ROM, i.e. I have KI4 ROM but KJ2 kernel?
2) Flash following instructions from the modified ROM. I can simply store the rom on my phones memory and flash from there. Do I have to do anything after this? e.g. wouldnt I have to flash another kernel from that modified ROM, and in doing so would I lose my root and cwm? How important it for ROMS to match kernels?
Also, when I install the CF root kernel I get the yellow triangle on boot right.. I read the method on your link to remove it but it seems complicated. What is he actually doing to remove the triangle? Is he flashing back the original kernel?
The method he mentioned is the easiest way to flash a custom kernel, without having the yellow triangle.
The kernel doesn't have to match the ROM version. A custom kernel, e.g. like hardcore's speedmod (can be found in the original android section) installs root and CWM automatically.
Flash the custom kernel with Odin. The yellow triangle should appear after that. But CWM should be available and you're rooted now.
Reflash the original Kernel with CWM to remove the yellow triangle.
But wouldn't reflashing the original kernel using cwm defeat the purpose of flashing the custom kernel? Also do I use 'flash an update' or :?'flash a kernel's what's the main difference?
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Jamie1029 said:
But wouldn't reflashing the original kernel using cwm defeat the purpose of flashing the custom kernel? Also do I use 'flash an update' or :?'flash a kernel's what's the main difference?
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Click to expand...
Click to collapse
Any stock kernel is flashed through ODIN after rooting to get rid of yellow triangle. Afterwards, to flash any kernel of your choice, use DarkyROM tool.
https://market.android.com/details?id=com.ficeto.darkyrom&hl=en
Just copy the kernel tar file in to your usb storage and you can flash the kernel within phone using darkyrom tool (no need of pc). Also this method won't give you back the yellow triangle again.
And to be safe, it's a wise idea to buy an USB jig to reset your binary counter.
Thanks for your help Droid. Interesting I noticed that I did not get the yellow triangle after flashing siyah kernel over cwm. Original kernel before that was the stock one modified as per crikelos instructions to get the speedmod.. is that normal?
Ohh I don't get the binary counter thing. Why do I need to reset it? And how and why can a USB jig do this? A link would help. Thanks!
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Hi guys,
I have spent two nights reading many methods of rooting and flashing already, but I yet to come across a way to install CWM Recovery for my GT-I9100M without using a CF-root kernel.
The thing is, I want to keep the official 4.0.3 firmware I got from Kies.
I already figured out how to root without using a CF-root kernel. He does not have a CF kernel for my version anyways.
Back to my question. Is there a way?
I tried flashing the ZIP from ROM manager's website, but the recovery is only temporary. The next boot, it goes back to stock recovery.
In my Xperia X10, I could install CWM Recovery using a program after rooting. Not sure if I can do it for SG2.
fantobe said:
Hi guys,
I have spent two nights reading many methods of rooting and flashing already, but I yet to come across a way to install CWM Recovery for my GT-I9100M without using a CF-root kernel.
The thing is, I want to keep the official 4.0.3 firmware I got from Kies.
I already figured out how to root without using a CF-root kernel. He does not have a CF kernel for my version anyways.
Back to my question. Is there a way?
I tried flashing the ZIP from ROM manager's website, but the recovery is only temporary. The next boot, it goes back to stock recovery.
In my Xperia X10, I could install CWM Recovery using a program after rooting. Not sure if I can do it for SG2.
Click to expand...
Click to collapse
You can flash kernels and you will not lose your official firmware.
All you would have to do is root your device and make a nandroid backup before you flash anything. Then you would have a copy of your firmware. Worst case, if you lose the backup, all you need to do is go to www.sammobile.com and download the firmware and flash through odin.
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...
I see. Custom kernel is the only way to get recovery.
One other question though, is it okay to flash a ROM using a temporary CWM recovery (ie. recovery flashed indepedent of kernel)?
fantobe said:
I see. Custom kernel is the only way to get recovery.
One other question though, is it okay to flash a ROM using a temporary CWM recovery (ie. recovery flashed indepedent of kernel)?
Click to expand...
Click to collapse
Yes, no issue at all
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fantobe said:
I see. Custom kernel is the only way to get recovery.
One other question though, is it okay to flash a ROM using a temporary CWM recovery (ie. recovery flashed indepedent of kernel)?
Click to expand...
Click to collapse
yes i was on stock and i ran temp cwm to flash aokp all was fine.
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Hi All
Please let me explain in detail:
1. I had original ICS and flashed CF-Root with ODIN
2. Flashed new JB-Polland with ODIN
3. Lost root access and CF apps
4. Re-flashed CF-Root, CF apps and root access granted
5. Opening CWM i get the following msg: "This version of CWM should be used with CF-CWM v1.1" Now from reading other posts, i think this error is due to CF-Root not supporting JB.
Therefore what are my options?
1. Can I flash a new root over CF-Root, that supports JB.
2. Do I do the triangle away and try to clear CF-Root
3. Any other suggestions?
Thanks in advance guys.
Whenever I'm flashing a ROM, I flash over the previous one.
I installed CF-Root, flashed MIUI, didn't like it so flashed CM10, didn't like it so flashed to stock again then reset my flash count to 0.
Or use it as is. Everyone who uses CF-Root with JB gets that message. You can still perform backups, updates and ZIP installs through CWM recovery.
Thanks Sleepycat, I didn't realise you could keep using it. Part of the message says some features have been disabled.
Running backup in recovery mode now and seems to be going sweet.
Thanks Guys
its just the app that's incompatible, not CWM itself.
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Depending on what you are flashing, what is on the phone will be "overwritten". For example if you flash a kernel you will replace just the kernel, if you are flashing a full rom, everything that the rom contains will overwrite its equivalent in the phone (which is why you needed to reflash the root).
If you want to ensure you can get back to original state you needed to have done a nandroid backup at the beginning from which to restore later.
Hope this helps
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Guys I need help with rooting and installing CWM recovery on my phone so i can install custom roms. Im running on stock 4.03 ZSLPE...What is the safest way for me without bricking my phone. Because 1 of my friends super bricked his phone after trying to install a custom rom..Plz help
Try cf-foot ( kernel ) or try the zip methord ( i forgot the link , search in google ,this is a little bit safer )
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Mebin Robin said:
Try cf-foot ( kernel ) or try the zip methord ( i forgot the link , search in google ,this is a little bit safer )
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Click to expand...
Click to collapse
Cf root will just root the phone ryt ?? What i want is to have CWM recovery to be able to install custom roms
pasanjay said:
Cf root will just root the phone ryt ?? What i want is to have CWM recovery to be able to install custom roms
Click to expand...
Click to collapse
Cf root will give u root and CWM recovery, so u're be able to install custom rom
1. Download any version of CWM from here
2. Get desired rom (kernel too if you want)
3. Place everything in Externel SDcard
4. Boot into stock recovery (Power+Home+Vol up)
5. Use stock recovery to flash CWM
6. Backup Current stock rom
7. Wipe the usual
8. Flash Custom rom (Or just kernel)
9. Reboot
10. ?? Profit ??
Now you got Custom rom or Kernel + Full stock rom backup (can always get stock rom from sammobile if you lose it)
-Grift- said:
1. Download any version of CWM from here
2. Get desired rom (kernel too if you want)
3. Place everything in Externel SDcard
4. Boot into stock recovery (Power+Home+Vol up)
5. Use stock recovery to flash CWM
6. Backup Current stock rom
7. Wipe the usual
8. Flash Custom rom (Or just kernel)
9. Reboot
10. ?? Profit ??
Now you got Custom rom or Kernel + Full stock rom backup (can always get stock rom from sammobile if you lose it)
Click to expand...
Click to collapse
Thank u for the response. But im a bit scared flash or wipe in temp touch recovery. Because a friend of mine got his s2 super bricked while trying to flash on stock 4.04 kernel. does this emcc bug affect 4.03 stock kernels as well? So can i just flash the latest Siyah Kernel using ODIN ??
Any time you root/flash a Rom theres a chance to brick your phone. What -Grift- said is the easiest and best way to flash a custom Rom in my opinion. Just make a Nandroid backup, delete data and cache, install the zip file from your SD card. I've flashed 4 Roms so far with this phone, all successfully. Currently I'm running Cyanogenmod 7 on my DINC 2. Good luck on whatever method you choose.
Sent from my Droid Incredible 2 using Tapatalk.
Go into download mode, connect your phone to your computer and use Odin to flash a custom kernel to your phone. That done, you have root and you're safe from the emmc superbug. (EDIT: although 4.0.3 doesnt have the bug, if thats what is bothering you) You can then flash a custom rom or whatever else you please. Use the TAR version of siyah v4.1.5 from www.gokhanmoral.com
Instructions on how to use Odin are available all over this site and on the web in general. Search and you'll get it.
If you don't wanna use Odin, your only other option is flashing temporary CWM. Search for rachmat3's method or use the one mentioned above. All three are equally safe provided you read up on the procedure adequately.
99.9% of the phones getting bricked is coz people jump headlong into the procedure without first bothering to educate themselves on how to go about it. They get what they deserve.
Sent from my GT-I9100 using xda app-developers app.
If noobs on xda have taught me one thing, its that smartphones just aren't for everyone.
Or just wipe only when you have flash the rom (custom recoveries are safe e.g siyah dorimanx)
Edit: AFAIK 4.0.3 are safe the bug is with leaked 4.0.4?
HAXTREME said:
Go into download mode, connect your phone to your computer and use Odin to flash a custom kernel to your phone. That done, you have root and you're safe from the emmc superbug. (EDIT: although 4.0.3 doesnt have the bug, if thats what is bothering you) You can then flash a custom rom or whatever else you please. Use the TAR version of siyah v4.1.5 from www.gokhanmoral.com
Instructions on how to use Odin are available all over this site and on the web in general. Search and you'll get it.
If you don't wanna use Odin, your only other option is flashing temporary CWM. Search for rachmat3's method or use the one mentioned above. All three are equally safe provided you read up on the procedure adequately.
99.9% of the phones getting bricked is coz people jump headlong into the procedure without first bothering to educate themselves on how to go about it. They get what they deserve.
Sent from my GT-I9100 using xda app-developers app.
If noobs on xda have taught me one thing, its that smartphones just aren't for everyone.
Click to expand...
Click to collapse
Thank you for the info. I know few things about rooting and custom roms. I have flashed so moany roms with my HTC. Im new to samsung and odin. Thats why i wanted to make sure before doing anything stupid.
Thank u all for the help. I successfuly flashed Siyah kernel to get root and CWM
I am about to install the international S2 JB ROM, and want root. The solution I have seen so far is the Siyah Kernel (6.0b4/5).
My question is this: If that kernal installs root, will I lose root if I change back to the official kernel that is inside the Firmware download (zImage)? What I might need is the CF-Root kernel, but I can't find it for JB (yet). Is it just a case of waiting for this?
I'm not familiar with ADB but am willing to teach myself, if this would help once I change to the siyah kernel (have looked at the quick root guides here: http://forum.xda-developers.com/showthread.php?t=1075278) but all the downloads are flagged by both Chrome and Avira if I do decide to continue past the chrome warning)
joshjoshajosh said:
I am about to install the international S2 JB ROM, and want root. The solution I have seen so far is the Siyah Kernel (6.0b4/5).
My question is this: If that kernal installs root, will I lose root if I change back to the official kernel that is inside the Firmware download (zImage)? What I might need is the CF-Root kernel, but I can't find it for JB (yet). Is it just a case of waiting for this?
I'm not familiar with ADB but am willing to teach myself, if this would help once I change to the siyah kernel (have looked at the quick root guides here: http://forum.xda-developers.com/showthread.php?t=1075278) but all the downloads are flagged by both Chrome and Avira if I do decide to continue past the chrome warning)
Click to expand...
Click to collapse
after installing siyah kernel v6.0b4/5 by flashing the tar file of the same thro ODIN ur phone will be rooted with the latest CWM recovery installed.
if u flash back the original kernel (zimage) again thro ODIN u will not loose ur root but it will be limited in its functionality
Sun90 said:
after installing siyah kernel v6.0b4/5 by flashing the tar file of the same thro ODIN ur phone will be rooted with the latest CWM recovery installed.
if u flash back the original kernel (zimage) again thro ODIN u will not loose ur root but it will be limited in its functionality
Click to expand...
Click to collapse
Thank you very much for your quick reply. I see now, the recovery seems to be part of/linked to the kernel. But I should still have superuser for use of titanium backup?
The only question I asked is: Do I keep root/busybox/cwm recovery
Lol of course you'll lose root and cwm, common sense. You will be flashing a new ROM package, new everything.
The only way to keep root (doesnt actually keeps, roots while flashing) is mobile odin.
I've found the answer, I do keep root, you were wrong.
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Sun90 said:
after installing siyah kernel v6.0b4/5 by flashing the tar file of the same thro ODIN ur phone will be rooted with the latest CWM recovery installed.
if u flash back the original kernel (zimage) again thro ODIN u will not loose ur root but it will be limited in its functionality
Click to expand...
Click to collapse
Thank you very much, by "limited functionality" I assume you mean that there will be no cwm recovery, still that's good enough for me Thanks again