Hi!
I'm a total noob. This is my first android phone. I've read everything about rooting, and I'd like to install a custom rom, but I'd like to save the stock rom/kernel first. I've found this topic: http://forum.xda-developers.com/showthread.php?t=1075278
I don't really know if these are what I need. Also, I have an xwkf3 device, but it's slightly branded for hungarian T-mobile (the browser has a different name and icon, and it also had every network setting by default).
So, basically I either need someone to tell me which one to download, or better yet, how to create a backup of the whole thing.
Yet again, I'm sorry for asking something probably really stupid. I've tried to google it many times, but I failed to find an answer. Thanks for everyone in advance.
Are you rooted already? If so just boot into ClockworkMod recovery (cwm) and then navigate to backup. (navigate using volume buttons and use home to select)
Sent from my GT-I9100 using xda premium
Here is the kernel rooting thread.
http://forum.xda-developers.com/showthread.php?t=1103399
Dial *#1234# into the phone dialer to find out what firmware you have installed.
Root using chainfires method and make a full backup via CWM.
Flash away. But make sure the Rom/firmware is for your device. Eg i9100 international.
Good luck.
Sent from my GT-I9100 using XDA App
I'm not rooted yet. If I understood everything correctly, the safe kernel is the same for branded/unbranded devices, and only the rom is different?
I'm currently downloading both secure and insecure kernels. After rooting, can I revert back to the secure one to install custom roms?
BTW, thank you for your quick answer
Beco.91 said:
I'm not rooted yet. If I understood everything correctly, the safe kernel is the same for branded/unbranded devices, and only the rom is different?
I'm currently downloading both secure and insecure kernels. After rooting, can I revert back to the secure one to install custom roms?
BTW, thank you for your quick answer
Click to expand...
Click to collapse
I'm not positive but I think if you are rooted and install a stock kernel (without root) you will lose root and won't be able to flash custom roms or make Backups. Its really easy to root, just find the appropriate insecure kernel, flash it with Odin, make backup, and then try new roms!
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King Shady said:
I'm not positive but I think if you are rooted and install a stock kernel (without root) you will lose root and won't be able to flash custom roms or make Backups. Its really easy to root, just find the appropriate insecure kernel, flash it with Odin, make backup, and then try new roms!
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Don't flash back to stock kernel.
Use a jig if you want to get rid of the yellow triangle.
Edit: after flashing one of the cfroot kernels make sure you can get into CWM recovery mode. Vol up+power+home
If you can then you're ok to follow the instructions of the Rom you want to flash.
Sent from my GT-I9100 using XDA App
Thank you. One last question, if I may. Some of the roms I'd try use different kernels, then mine. If I install one of those, and want to revert the phone to factory rom, and kernel, should I root it again with an insecure kernel according to the rom, or one according to my device's current, factory rom?
You will probably find that the Rom kernel will be rooted and have CWM. Just check in the 1st post or 2 of the roms thread.
If you use CWM and make a backup of your stock Rom, after you root now but before you flash any other Rom, you can restore with CWM to get back to stock firmware.
Sent from my GT-I9100 using XDA App
Beco.91 said:
Thank you. One last question, if I may. Some of the roms I'd try use different kernels, then mine. If I install one of those, and want to revert the phone to factory rom, and kernel, should I root it again with an insecure kernel according to the rom, or one according to my device's current, factory rom?
Click to expand...
Click to collapse
To fully return to stock you have to flash a stock rom and stock kernel from Odin. The rom that you want to back up will be a stock rom but it will be rooted because of the rooted kernel. So yea, flashing stock firmware and kernel is the only way to get back to fully stock.
Sent from my GT-I9100 using xda premium
But if I restore my backup rom, and flash it with an original kernel, it would be unrooted, and basically the phoen would be just as it is right now. Is that right?
bck
hi i have the same problem i want to root my gt 2 p5110 but i have to come back at the original values before june and can't loos the warranty....can you help me?
Related
Hi I'm new to using Samsung phones, always had Moto. Is Entropys ZombieAss kernel the only kernel that I can flash ICS(new official ICS ROM ect.) roms on with CWM, or are there more? I'm unrooted on stock 2.3.4, any help would be appreciated, thanks.
Sent from my SAMSUNG-SGH-I777 using xda premium
RPK925 said:
Hi I'm new to using Samsung phones, always had Moto. Is Entropys ZombieAss kernel the only kernel that I can flash ICS(new official ICS ROM ect.) roms on with CWM, or are there more? I'm unrooted on stock 2.3.4, any help would be appreciated, thanks.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
You can flash almost any ROM with almost any kernel, but ZombieAss will boot and run recent i9100 based ROMs. As in, you can't use ZombieAss with the official ICS ROMs from AT&T. If you're on stock 2.3.4, you can go ahead and flash any ICS ROM from their threads as long as it's for our phone -- the i777. They should automagically flash an ICS kernel.
In short, use ICS kernels with ICS roms, Gingerbread kernels with Gingerbread roms, but any kernel with CWM can flash anything without trouble.
Just pick your ROM and go in my opinion! pretty much all of the ICS ROMs include a kernel that will include CWM. (exception being the ATT leaks, but i believe even the one built by Task650 includes a kernel with CWM)
Kernel for ICS ROMs
I use overclocked kernels by SebastianFM on Android Revolution HD ROMs. Combination of the two works best for me.
You can also check out faux123's released kernels. Also very nice work (with ZRAM)
StyxCrosser said:
I use overclocked kernels by SebastianFM on Android Revolution HD ROMs. Combination of the two works best for me.
You can also check out faux123's released kernels. Also very nice work (with ZRAM)
Click to expand...
Click to collapse
Think you might be lost .. Everything you referenced was for the HTC Sensation.
To the OP,, do not flash sensation things! I'd assume they'd fail to install anyways,, but if they didn't,, you might be in for fun!
Yeah man, I'm on HTC. That's what happens when you're a noob.
Didn't even think about ALL OTHER DEVICES.
Thanks anyway
StyxCrosser said:
Yeah man, I'm on HTC. That's what happens when you're a noob.
Didn't even think about ALL OTHER DEVICES.
Thanks anyway
Click to expand...
Click to collapse
lol it happens . Just was worried the OP would try to flash some HTC stuff!
shishir95 said:
You can flash almost any ROM with almost any kernel, but ZombieAss will boot and run recent i9100 based ROMs. As in, you can't use ZombieAss with the official ICS ROMs from AT&T. If you're on stock 2.3.4, you can go ahead and flash any ICS ROM from their threads as long as it's for our phone -- the i777. They should automagically flash an ICS kernel.
In short, use ICS kernels with ICS roms, Gingerbread kernels with Gingerbread roms, but any kernel with CWM can flash anything without trouble.
Click to expand...
Click to collapse
Just to be sure though, first I have to flash a kernel with Odin that has CWM, then flash a ROM directly from internal/external sd? Or. Can I just flash a any ROM with Odin? . Just don't want to mess up and have to use the return to stock method. Thanks
Sent from my SAMSUNG-SGH-I777 using xda premium
RPK925 said:
Just to be sure though, first I have to flash a kernel with Odin that has CWM, then flash a ROM directly from internal/external sd? Or. Can I just flash a any ROM with Odin? . Just don't want to mess up and have to use the return to stock method. Thanks
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Once you have CWM (any CWM), you can go pretty much anywhere without returning to stock.
People that complain about bootloops didn't know the most basic rule of flashing:
ALWAYS WIPE DATA IN CWM WHEN SWITCHING FIRMWARES! (usually no wiping needed when switching kernels though.)
Suggested order, in my opinion:
Flash a Gingerbread kernel with CWM, such as my Daily Driver for Gingerbread
Do a Nandroid backup of your current setup (Backup and Restore in CWM) - Enter CWM using the three-finger combo, NOT via ROM Manager
Once you've done a backup - flash something. If it's in these forums, it should be safe. I suggest reading the threads for various releases to get a feel for things. Don't ask what's best - that is a matter of taste.
Entropy512 said:
Once you have CWM (any CWM), you can go pretty much anywhere without returning to stock.
People that complain about bootloops didn't know the most basic rule of flashing:
ALWAYS WIPE DATA IN CWM WHEN SWITCHING FIRMWARES! (usually no wiping needed when switching kernels though.)
Suggested order, in my opinion:
Flash a Gingerbread kernel with CWM, such as my Daily Driver for Gingerbread
Do a Nandroid backup of your current setup (Backup and Restore in CWM) - Enter CWM using the three-finger combo, NOT via ROM Manager
Once you've done a backup - flash something. If it's in these forums, it should be safe. I suggest reading the threads for various releases to get a feel for things. Don't ask what's best - that is a matter of taste.
Click to expand...
Click to collapse
Thanks for help. Can I flash your daily driver with Odin since I don't have CWM yet? I downloaded the current version and it is a .zip, not a .tar file. Thanks
Sent from my SAMSUNG-SGH-I777 using xda premium
RPK925 said:
Thanks for help. Can I flash your daily driver with Odin since I don't have CWM yet? I downloaded the current version and it is a .zip, not a .tar file. Thanks
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
DON'T use Odin from your computer! Using Odin trips the flash counter and that'll probably give you headaches later. Use Mobile Odin instead, you can find it here under Step 3a, it allows you to flash zip files (lite version is free, allows you to flash only kernels from the phone itself)
karate104 said:
DON'T use Odin from your computer! Using Odin trips the flash counter and that'll probably give you headaches later. Use Mobile Odin instead, you can find it here under Step 3a, it allows you to flash zip files (lite version is free, allows you to flash only kernels from the phone itself)
Click to expand...
Click to collapse
I'm not rooted yet though. Any suggestions.
Sent from my SAMSUNG-SGH-I777 using xda premium
RPK925 said:
I'm not rooted yet though. Any suggestions.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Read same thread. Steps 2a-d detail four different ways to root. I think you would do well to read the thread's OP in it's entirety a few times before you try anything.
Sent from my GT-I9100 using XDA
There is one tar ball available for Entropy's daily driver kernel. It's the top one in the list of downloads, named DD_01232012.tar. If you flash it, you will increment the flash counter and invoke the yellow warning triangle on boot, but you can reset the flash counter and remove the yellow triangle with a usb jig, or if you install ICS on the phone, you can get the same result using chainfire's Triangle Away application. And by all means, read the full OP of my guides, and any other follow up information you can find, so that you will have a solid foundation for making decisions as you go forward.
RPK925 said:
Thanks for help. Can I flash your daily driver with Odin since I don't have CWM yet? I downloaded the current version and it is a .zip, not a .tar file. Thanks
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Right now only my Gingerbread kernels have a .tar download available.
It is my opinion that no one should be going straight to ICS yet without already having some experience with kernel flashing/installing CWM/nandroiding their current Gingerbread firmware as a backup/properly testing custom firmwares, which is why only my Gingerbread kernels have .tar files. ICS on our devices is still too new.
karate104 said:
DON'T use Odin from your computer! Using Odin trips the flash counter and that'll probably give you headaches later. Use Mobile Odin instead, you can find it here under Step 3a, it allows you to flash zip files (lite version is free, allows you to flash only kernels from the phone itself)
Click to expand...
Click to collapse
Triangle Away will reset that on ICS.
Entropy, I've been wondering. Does your ZA Kernel work on the AOKP roms that Task has been porting over to our phones?
i dont think ZombieAss will work with non-Sammy based ROMs, but I haven't tried it
Entropy512 said:
Right now only my Gingerbread kernels have a .tar download available.
It is my opinion that no one should be going straight to ICS yet without already having some experience with kernel flashing/installing CWM/nandroiding their current Gingerbread firmware as a backup/properly testing custom firmwares, which is why only my Gingerbread kernels have .tar files. ICS on our devices is still too new.
Triangle Away will reset that on ICS.
Click to expand...
Click to collapse
Thanks for all the help. I actually downloaded mobile odin, then used doomlords easy rooting tool, then flashed, I forgot the name but it was something like "one kernel to rule the all", flashed with mobile odin, and got CWM, then installed you current daily driver, made a Nandroid backup, and now I'm ready to flash. I had one more question, what is the difference between the regular Nandroid backup and the advanced? And should I be backing up regular, or the advanced way?
Sent from my SAMSUNG-SGH-I777 using xda premium
shoestar said:
Entropy, I've been wondering. Does your ZA Kernel work on the AOKP roms that Task has been porting over to our phones?
Click to expand...
Click to collapse
No go, I tried and it wouldn't boot
Sent from my SGH-I777 using Tapatalk
Hi,
I really want to get pure ics on my galaxy s II. Currently i'm on 2.3.4 gingerbread, unrooted.
I have asked a few questions about how to root my phone, and found a pretty straight forward tutorial, that users on xda have said is great to follow:
jayceooi.com/2011/08/04/how-to-root-samsung-galaxy-s2-with-cf-root-video
Rooting the phone appears to be pretty straight forward using the above tutorial, but finding the correct rom is what im not so sure about.
Users on xda have told me to use:
forum.xda developers.com/show....php?t=1075278 , to find a rom, specifically the ones just above ++++++ [Frankenstein Firmwares] +++++++
The only problem is, how do i know which one to use, i gather its going to be the 4.0.3 roms, but there are so many varients for different countries, which one is for me?
Does it matter which one i choose? Is there differences between them?
Thanks,
correct country
Hi, I'm not sure what other differences there are, but I know if you use the wrong countries Rom, the keyboard layout will be different to the one you are expecting, and as far as I know, there is no way of correcting this.
If you are going to use English as your main language then you can update to any rom as all the rooms support English primarily .
You can upgrade to the latest ics rom which is xwlp4, you can also find the matching cf root for the rom if you need root
#*posted on the move *#
Does that mean I would have to use another rooting method in order to use the new ics rom, or can I use the tutorial I posted previously?
Currently my kernel is XWKI4, and according to that tutorial I must find the insecure kernel that is closest to mine, what must be done differently?
Just flash any root kernel and your done. This will give root, su, super user, busy box and custom CWM Recovery for flashing, wiping, restore & backup etc.
Siyahkernel for example, can flash via Odin .tar or CWM recovery .zip
http://www.gokhanmoral.com/gm/2012/04/06/siyahkernel-v3-0-2/
Use could also use Chainfire CF-root kernel also found in XDA.
Sent from my GT-I9100 using xda premium
I'm sorry I don't understand what your trying to say.
Are you saying I need to use another kernel for cfroot, which will be capable of booting the new ics rom
Kernels are specific to GB or ICS. Not interchangeable.
Sorry, gave you the wrong link for siyahkernel GB.
http://www.gokhanmoral.com/gm/2012/03/19/siyahkernel-v2-6-14/
From there you can nandroid backup in cwm recovery and also backup and user apps and data with bavkup root apps such as; my backup root or titanium backup.
Then you can flash any custom ICS ROM of your choosing. Listening ROM is excellent with few bugs. It will come with a earlier version of siyahkernel, which has a few issues with wifi toggle, so suggest to flash the latest ICS kernel from the link I previously posted or from his thread here in XDA.
http://forum.xda-developers.com/showthread.php?t=1095274
Edit; important to do a full system wipe when changing rom from a different Android base. Wipe system,data, cache,dalvik in cwm recovery.
Another method would be to factory reset, wipe cache in recovery and power off. Enter download mode (volume up+power) release only when on dl mode. Have lies drivers on PC,but shut down lies and use Odin to flash the .tar litening rom. Done
Many methods and choices
..
Sent from my GT-I9100 using xda premium
OP, why not entering the Samsung Galaxy S2 forum and ask, I'm sure you will have much more support.
Will do, thanks
Sent from my GT-I9100 using xda premium
You're welcome .....
Sent from my GT-P6810 using xda premium
Just moved from iPhone to i777, wanted to get ICS, but eneded up bricking my first phone by installing something meant for i9000. At that time I didn’t know Galaxy S2 has variants, just searched for S2 and got burned. My fault…..should have understood better.
I want to do it right this time so I have been reading about i777, ROMs, kernels, CWM.
I want to put SHOStock or CM9 ROM.
I know where these ROMs are and how to flash them using CWM.
But that’s where my confusion starts, that there are just too many sources and options and I don’t know which one is right.
So please advise.
How do I root?
Using this? It has multiple options
http://forum.xda-developers.com/showthread.php?p=18576627#post18576627
or this ?
http://galaxys2root.com/galaxy-s2-root/how-to-root-att-galaxy-s2-sgh-i777/
Which kernel to use
The one mentioned in SHOStock thread #3 post the Cherry Picker Kernel for i777 or Entorpy? Siayh
How do I get CWM on these, isn’t recovery part of the kernel or do I flash It separately or may be use ROM Manager, once rooted.
Modem? What does it do? Is it for phone or wi-fi and how do I know which one to use.
My phone’s data
SGH-i777
Android 2.3.6
Baseband I777UCKK6
Kernel 2.6.35.7
Build#
GINGERBREAD.UCKK6
Here's what you need to do:
1. Use Odin to flash stock UCKH7 with Root, available here. Be aware that doing this will require a full wipe, so do what you can to back up your sms/mms/contacts and other data. READ EVERY STEP CAREFULLY. Do not flash a kernel with Odin.
2. Now that you have root access, download Mobile Odin from the Play Store. Use it to flash either Entropy's DD or Siyah. This will install CWM Recovery.
3. Boot into CWM Recovery and make a nandroid backup.
4. Use CWM to flash SHOStock or CM9.
First of all thanks for responding.......
Is there a relation between which ROM will work with which Kernel, I may be wrong but I got the impression, depending on which ROM you are putting, you should have a kernel that supports it.
Also it seems like, ShoStock has its own variation of entropy, named cherry picker.
Thanks.......
mattdm said:
Here's what you need to do:
1. Use Odin to flash stock UCKH7 with Root, available here. Be aware that doing this will require a full wipe, so do what you can to back up your sms/mms/contacts and other data. READ EVERY STEP CAREFULLY. Do not flash a kernel with Odin.
2. Now that you have root access, download Mobile Odin from the Play Store. Use it to flash either Entropy's DD or Siyah. This will install CWM Recovery.
3. Boot into CWM Recovery and make a nandroid backup.
4. Use CWM to flash SHOStock or CM9.
Click to expand...
Click to collapse
Agree with matts post just like to add that you can get the free mobile odin here http://forum.xda-developers.com/showthread.php?t=1347899 to flash the kernel so you dont spend any money. download file, extract, move apk to sdcard, use root or file explorer locate and run the apk. follow instructions on flashing a kernel
Thanks a ton got it.....
aj9507 said:
Agree with matts post just like to add that you can get the free mobile odin here http://forum.xda-developers.com/showthread.php?t=1347899 to flash the kernel so you dont spend any money. download file, extract, move apk to sdcard, use root or file explorer locate and run the apk. follow instructions on flashing a kernel
Click to expand...
Click to collapse
Ah yes, thanks. I always forget to mention that.
Itsme1967 said:
First of all thanks for responding.......
Is there a relation between which ROM will work with which Kernel, I may be wrong but I got the impression, depending on which ROM you are putting, you should have a kernel that supports it.
Also it seems like, ShoStock has its own variation of entropy, named cherry picker.
Thanks.......
Click to expand...
Click to collapse
Sometimes there is, but it seems like most of the ICS kernels are interchangeable. Just try out each kernel for a few days...once you have CWM, switching kernels is no big deal. When switching kernels, though, it's always wise to flash jivy's Kernel Cleaning Script just before flashing a new kernel.
Can you use CWM to flash kernels as well ? I thought they always have to be done using ODIN.
May be I underestimated CWM, I thought it was for ROMs and zips only.
Itsme1967 said:
Can you use CWM to flash kernels as well ? I thought they always have to be done using ODIN.
May be I underestimated CWM, I thought it was for ROMs and zips only.
Click to expand...
Click to collapse
u can use mobile odin or cwm but its just a matter of preference you just had to use mobile odin at first to acquire a cwm enabled kernel but pretty much you can flash everything in cwm as long as its specified to be cwm flashable zip kernels roms and modems and such
edit: the free mobile odin only lets you flash kernels btw its the premium version that lets you do everything without going to recovery
hope to help
Itsme1967 said:
Can you use CWM to flash kernels as well ? I thought they always have to be done using ODIN.
May be I underestimated CWM, I thought it was for ROMs and zips only.
Click to expand...
Click to collapse
You don't seem to have a firm grasp on all this. Maybe you should do some more reading before going further...
Anyway, here's a brief explanation:
A kernel is the underlying core of the operating system; it is how the OS interacts with the hardware.
A rom (the proper term is actually firmware, but nobody uses it) is basically the whole user interface; it's the part of the OS you see. When you flash a rom, you're flashing everything, including a kernel.
Like I said before, you never want to flash a custom kernel using Odin. Doing so will trip the phone's flash counter, and this will show up if you ever have to take the phone in for warranty stuff.
The reason it's ok to use Odin to flash the stock with root package is that it comes with the stock kernel, not a custom one. Basically, once you're rooted, you shouldn't touch Odin again unless its to recover from a brick. Basically everything else can be done in CWM.
Yes I am still reading & trying to get a grip on it.
So first I will root it, then flash kernel using Mobil Odin
Then get in CWM mode ad flash ROM, which will come with the kernel i.e. cherrypicker kernel and modem I need.
Yes one part I have understood very well is that use CWM as much as one can to avoid committing mistakes by flashing something that doesn't belong.
Sorry for asking so many qs., I wish I could understand this faster.....
Thanks again........
Itsme1967 said:
Yes I am still reading & trying to get a grip on it.
So first I will root it, then flash kernel using Mobil Odin
Then get in CWM mode ad flash ROM, which will come with the kernel i.e. cherrypicker kernel and modem I need.
Yes one part I have understood very well is that use CWM as much as one can to avoid committing mistakes by flashing something that doesn't belong.
Sorry for asking so many qs., I wish I could understand this faster.....
Thanks again........
Click to expand...
Click to collapse
Yeah no problem. I would suggest that you wait a while before doing this. Read through all the stickies and guides to can find, and get more familiar with everything. Then after a couple days, go for it.
Crap, I'm starting to think I should not but a sg2....
Sent from my HTC Glacier using XDA
rpomponio said:
Crap, I'm starting to think I should not but a sg2....
Sent from my HTC Glacier using XDA
Click to expand...
Click to collapse
Why?
I remember my first flash....
Sent from my SGH-I777 using xda premium
jthatch12 said:
I remember my first flash....
Sent from my SGH-I777 using xda premium
Click to expand...
Click to collapse
I remember mine, read and re read the guides 3 to 5 times before I even touched my phone that I had for only three hours before I got bored with stock lol. To op don't be afraid man this forum is here to help and the gs2 is a great phone
Sent from my SGH-I777 using XDA
:*) nice ! Love these kinds of threads.
mattdm said:
Why?
Click to expand...
Click to collapse
Can you send me a guide please, I have been reading for a couple days now and alot of what I see is wifi breaks after root. I am buying a sg2 in about 2 weeks so plan on seeing me around. I want to root it and run ics but I need my wifi... Any help is greatly appreciated!! Thank you in advance!!!
Sent from my HTC Glacier using XDA
rpomponio said:
Can you send me a guide please, I have been reading for a couple days now and alot of what I see is wifi breaks after root. I am buying a sg2 in about 2 weeks so plan on seeing me around. I want to root it and run ics but I need my wifi... Any help is greatly appreciated!! Thank you in advance!!!
Sent from my HTC Glacier using XDA
Click to expand...
Click to collapse
Wifi works fine on ics
Sent from my SGH-I777 using Tapatalk 2 Beta-5
Nick281051 said:
Wifi works fine on ics
Sent from my SGH-I777 using Tapatalk 2 Beta-5
Click to expand...
Click to collapse
So I just need to go threw the root process, make a back up, and when I flash the ics ROM I choose, my wifi will be back?? Sorry for the noobish questions, I plan on rooting my sg2 as soon as I get home from buying it and I don't want to brick it... Any help is much appreciated!!! Thank you in advance!
Sent from my HTC Glacier using XDA
rpomponio said:
Can you send me a guide please, I have been reading for a couple days now and alot of what I see is wifi breaks after root. I am buying a sg2 in about 2 weeks so plan on seeing me around. I want to root it and run ics but I need my wifi... Any help is greatly appreciated!! Thank you in advance!!!
Click to expand...
Click to collapse
mattdm said:
Here's what you need to do:
1. Use Odin to flash stock UCKH7 with Root, available here. Be aware that doing this will require a full wipe, so do what you can to back up your sms/mms/contacts and other data. READ EVERY STEP CAREFULLY. Do not flash a kernel with Odin.
2. Now that you have root access, download Mobile Odin from the Play Store. Use it to flash either Entropy's DD or Siyah. This will install CWM Recovery.
3. Boot into CWM Recovery and make a nandroid backup.
4. Use CWM to flash SHOStock or CM9.
Click to expand...
Click to collapse
You don't need any more of a guide than that. Don't worry about breaking wifi, that isn't a problem on any of the popular roms.
If you want a Samsung based ICS rom that works really well, I suggest ShoStock2. If you want an AOSP based rom, most people suggest AOKP. I haven't tried it personally.
rpomponio said:
So I just need to go threw the root process, make a back up, and when I flash the ics ROM I choose, my wifi will be back??
Click to expand...
Click to collapse
You're wifi won't go away in the first place.
Are there any custom roms which are better than the latest stock rom for the galaxy s2? I'm new to all this so this could be a stupid question.
I want to root my phone and maybe flash it with a custom rom. I have never upgraded the stock firmware on my phone because I did not want to lose the data in my apps and now I want to upgrade the phone and keep everything so I'm going to root the phone and use titanium back up. My android version is still 2.3.3.
Why do people flash an insecure kernal? (except for the reason of rooting the phone using odin)
bhavik_sheth said:
Are there any custom roms which are better than the latest stock rom for the galaxy s2? I'm new to all this so this could be a stupid question.
I want to root my phone and maybe flash it with a custom rom. I have never upgraded the stock firmware on my phone because I did not want to lose the data in my apps and now I want to upgrade the phone and keep everything so I'm going to root the phone and use titanium back up. My android version is still 2.3.3.
Why do people flash an insecure kernal? (except for the reason of rooting the phone using odin)
Click to expand...
Click to collapse
Better or not is subjective. The only way for you to find out is to try it out yourself. Someone else's opinion of better probably won't match up with your opinion or mine.
However, most custom ROMs will require you to do a full wipe of your phone, which means you won't be able to fully preserve your data... so you'll have do stick with your plan of root first, and use TB to save your app data. You can then restore your app data after you install whatever ROM you want.
Insecure kernels are used to root, there's really no other reason for them to be flashed.
If you want to invest time in your phone and tweak it to the maximum, a custom rom / kernel is recommended. They often contain extended settings which can improve comfort and performance of your phone, but they also require some technical knowledge and carefulness.
If you are just happy with your stock roms functionality, there is no need to change.
WongKit said:
If you want to invest time in your phone and tweak it to the maximum, a custom rom / kernel is recommended. They often contain extended settings which can improve comfort and performance of your phone, but they also require some technical knowledge and carefulness.
If you are just happy with your stock roms functionality, there is no need to change.
Click to expand...
Click to collapse
I don't mind investing time, I want to tweak it to the maximum and be able to do anything I want. I was planning to just root it using super one click, backup my app data using titanium back up and then upgrade the stock firmware and then root it again so I can restore the app data again. As I am new to do this, I'm doing proper research so I don't do anything wrong. I might also flash a CM Rom to my phone if I understand how to. I don't understand the insecure kernel and how it is different from the stock kernel.
Where did you learn to do all of this?
ctomgee said:
Better or not is subjective. The only way for you to find out is to try it out yourself. Someone else's opinion of better probably won't match up with your opinion or mine.
However, most custom ROMs will require you to do a full wipe of your phone, which means you won't be able to fully preserve your data... so you'll have do stick with your plan of root first, and use TB to save your app data. You can then restore your app data after you install whatever ROM you want.
Insecure kernels are used to root, there's really no other reason for them to be flashed.
Click to expand...
Click to collapse
Yeah that's exactly what I'm going to do. Just thinking if I should root it using an insecure kernel or super one click.
Here's a guide to rooting Gingerbread:
http://forum.xda-developers.com/showthread.php?t=1803530
Don't use Super One Click or anything, use a CF-Root kernel. When you flash the compatible kernel you'll be rooted and have installed also ClockworkMod Recovery which will allow you to install custom ROM's.
Sent from my GT-I9100 using Tapatalk 2
nicholas1520 said:
Here's a guide to rooting Gingerbread:
http://forum.xda-developers.com/showthread.php?t=1803530
Don't use Super One Click or anything, use a CF-Root kernel. When you flash the compatible kernel you'll be rooted and have installed also ClockworkMod Recovery which will allow you to install custom ROM's.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
So I root the S2, backup my apps, upgrade to ics using kies and then root again using CF-Root Kernel and restore apps.
Should I upgrade to ics using kies if I want a custom rom?
Try resurrection remix 2.6.1 fastest stable ROM I have ever found
Sent from my GT-I9100 using xda app-developers app
I just did this yesterday.
First root gingerbread.
Do a full nandroid backup.
Backup efs and apn using the guides on this forum.
Backup SMS using SMS backup.
Sync contacts to google or export to sd card as vcard.
Backup apps and data using titanium backup.
Copy all data off the phone onto your computer just in case.
Perform a factory reset.
download latest firmware from sammobile.com and flash onto phone.
Root using cf-root and use import or sync to retrieve contacts, SMS backup to restore SMS, and titanium backup to restore apps and their data.
At this point you should have a working phone with only call logs lost.
First couple of charges after a flash the battery will drain quickly but will settle down after that.
You just want to have rooted stock? You'll need to upgrade to ICS first before flashing a custom kernel.
What you could do, is upgrade to stock ICS through KIES flash a CF-Root then proceed from there.
Sent from my GT-I9100 using Tapatalk 2
Tried most ROMs and resurrection remix is probably the best all rounder,much smoother than stock but still not had a custom ROM or kernal beat stock on benchmarks.
Sent from my GT-I9100 using xda premium
bhavik_sheth said:
So I root the S2, backup my apps, upgrade to ics using kies and then root again using CF-Root Kernel and restore apps.
Should I upgrade to ics using kies if I want a custom rom?
Click to expand...
Click to collapse
If you are still on 2.3.3, I would recommend you to root it with zergrush method because it doesn't increase the binary counter.
Go to this link to download InitialCFRootFlasher.zip (from Chainfire), and then download CF-Root kernel of your firmware. Follow the instruction carefully and you S2 will get root with 0 binary count. This wouldn't work if you have updated your firmware to 2.3.6 above.
There are rooted stock ICS firmware which can be flash directly using CWM Recovery, so there's no need to use kies at all.
I would recommend Rootbox. There are two, one in jelly bean, and one in ics. Either one is really good.
Sent from my GT-I9100 using xda premium
nicholas1520 said:
Here's a guide to rooting Gingerbread:
http://forum.xda-developers.com/showthread.php?t=1803530
Don't use Super One Click or anything, use a CF-Root kernel. When you flash the compatible kernel you'll be rooted and have installed also ClockworkMod Recovery which will allow you to install custom ROM's.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
I went through your thread but CF hasn't made an insecure kernel 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.
Hi S2 user, :angel:
I will buy a new S2 phone soon. I need a little help from you guys. I need to know something about S2 :laugh:
My old phone is Xperia Arc S. This phone need following step to flash kernel and rom.
Kernel:
For flash a new kernel, I need to unlocked the bootloader first. Then this phone can flash any kernel anytime. But unlocking the bootloader will void the warranty.
Rom:
For flash a new rom, as long as the rom does not need to have specific kernel, in other word, stock based rom, no unlocked bootloader required. Just install the CWM and flash the rom.
How about S2 guys? Do I need to unlock something before flash kernel and rom? Can someone explain clearly or likes how I explain my old phone.
p/s- i read in some thread, doing a factory reset in cwm will make S2 brick? hard brick? can't even power on the phone. OMG is it true?
its very scary because in Xperia Arc S, i always flash a new rom. flasholic
I don't want my new S2 brick
I hope you guys can help me. Thanks
faiz5200 said:
Hi S2 user, :angel:
I will buy a new S2 phone soon. I need a little help from you guys. I need to know something about S2 :laugh:
My old phone is Xperia Arc S. This phone need following step to flash kernel and rom.
Kernel:
For flash a new kernel, I need to unlocked the bootloader first. Then this phone can flash any kernel anytime. But unlocking the bootloader will void the warranty.
Rom:
For flash a new rom, as long as the rom does not need to have specific kernel, in other word, stock based rom, no unlocked bootloader required. Just install the CWM and flash the rom.
How about S2 guys? Do I need to unlock something before flash kernel and rom? Can someone explain clearly or likes how I explain my old phone.
p/s- i read in some thread, doing a factory reset in cwm will make S2 brick? hard brick? can't even power on the phone. OMG is it true?
its very scary because in Xperia Arc S, i always flash a new rom. flasholic
I don't want my new S2 brick
I hope you guys can help me. Thanks
Click to expand...
Click to collapse
You don't have to unlock. Just download Odin and flash all the ROMs/kernels you want. As for the cwm brick bug, your phone will only brick if you factory reset through CWM in 4.0.4. In other versions you should be fine.
Sent from my GT-I9100 using xda app-developers app
S2 is the best phone to flash No problem with bootloader lock, you download Odin und happy flashing
Gesendet von meinem GT-I9100 mit Tapatalk 2
preseodymium said:
You don't have to unlock. Just download Odin and flash all the ROMs/kernels you want. As for the cwm brick bug, your phone will only brick if you factory reset through CWM in 4.0.4. In other versions you should be fine.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Thanks for your reply. For the brick bug, how come I want to factory reset when flashing new rom? And I think latest firmware for S2 is 4.0.4. Correct me if im wrong.
faiz5200 said:
Thanks for your reply. For the brick bug, how come I want to factory reset when flashing new rom? And I think latest firmware for S2 is 4.0.4. Correct me if im wrong.
Click to expand...
Click to collapse
I am currently installing 4.1.2, unofficial of course
The brick Bug problem by 4.0.4 only with Stock Kernel ! when you have 4.0.4 on your phone you flash a save Kernel (Siyah, Dorimanax .....) with Odin (only Odin not Cwm )
and it was save .After you can flash wath you want
smooth 123 said:
The brick Bug problem by 4.0.4 only with Stock Kernel ! when you have 4.0.4 on your phone you flash a save Kernel (Siyah, Dorimanax .....) with Odin (only Odin not Cwm )
and it was save .After you can flash wath you want
Click to expand...
Click to collapse
I see. So the brick bug actually come from the kernel inside firmware 4.0.4. Not the entire 4.0.4 firmware. Is other custom kernel likes you mention (Siyah, ..) is 100% safe?
faiz5200 said:
I see. So the brick bug actually come from the kernel inside firmware 4.0.4. Not the entire 4.0.4 firmware. Is other custom kernel likes you mention (Siyah, ..) is 100% safe?
Click to expand...
Click to collapse
enjoy ur s2, i just got the s2 and flash over 20 roms like crazy!! jajaja is very good phone
faiz5200 said:
I see. So the brick bug actually come from the kernel inside firmware 4.0.4. Not the entire 4.0.4 firmware. Is other custom kernel likes you mention (Siyah, ..) is 100% safe?
Click to expand...
Click to collapse
100% safe! Her is ohter 100% safe Kernel http://forum.xda-developers.com/showthread.php?t=1877270
for 4.0.4 Stock In this thread you found more to the theme brick bug.
I flash my S2 i don t know:victory: 100× no Problem S2 likes flashing
faiz5200 said:
Thanks for your reply. For the brick bug, how come I want to factory reset when flashing new rom? And I think latest firmware for S2 is 4.0.4. Correct me if im wrong.
Click to expand...
Click to collapse
You factory reset when installing ROMs to make sure there are no errors. Plus with siyah kernels, you can't be 100% sure your phone won't brick when factory reset in CWM. Best is to flash 4.0.3 before doing anything else.
Sent from my GT-I9100 using xda app-developers app
Rooting
Guys.. 1 more question.
When I get my S2, I plan to flash custom rom like aosp or aokp but not stock rom.
Do I need to root my S2 first before flash any rom? Because my Xperia Arc S, I do not need to root because root come inside with the custom rom zip. So when I flash a new rom, my Xperia automatically root. No need to do other step.
I'm curious about this because I see in some thread, talking about cf root or something like that. The thread is very updated. Looks like it very necessary to do it at least once to have root before flash any custom rom.
Please explain for me about this root. Thanks guys.
faiz5200 said:
Guys.. 1 more question.
When I get my S2, I plan to flash custom rom like aosp or aokp but not stock rom.
Do I need to root my S2 first before flash any rom? Because my Xperia Arc S, I do not need to root because root come inside with the custom rom zip. So when I flash a new rom, my Xperia automatically root. No need to do other step.
I'm curious about this because I see in some thread, talking about cf root or something like that. The thread is very updated. Looks like it very necessary to do it at least once to have root before flash any custom rom.
Please explain for me about this root. Thanks guys.
Click to expand...
Click to collapse
I'm not sure about CF root though. Although the ROM I am in now has built in kernels, I still think its best to root first as some ROMs may not have the built in kernel (never searched other ROMs not entirely sure). I might recomment siyah kernel though
Sent from my GT-I9100 using xda app-developers app
preseodymium said:
I'm not sure about CF root though. Although the ROM I am in now has built in kernels, I still think its best to root first as some ROMs may not have the built in kernel (never searched other ROMs not entirely sure). I might recomment siyah kernel though
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
uhh.. So root is come from kernel? Ermm.. so it different than xperia. So if I flash siyah kernel, I do not need to root?
faiz5200 said:
Guys.. 1 more question.
When I get my S2, I plan to flash custom rom like aosp or aokp but not stock rom.
Do I need to root my S2 first before flash any rom? Because my Xperia Arc S, I do not need to root because root come inside with the custom rom zip. So when I flash a new rom, my Xperia automatically root. No need to do other step.
I'm curious about this because I see in some thread, talking about cf root or something like that. The thread is very updated. Looks like it very necessary to do it at least once to have root before flash any custom rom.
Please explain for me about this root. Thanks guys.
Click to expand...
Click to collapse
Some people want to simple root their phone and don't care too much for custom roms and stuff. So for such people, they can simply root their phone using one of the many rooting methods mentioned.
However, if your primary aim is to install a custom rom/ kernel, you can use Odin to flash a custom kernel on your phone. (like siyah, dorimanx, Philz, the list goes on..) and you'll have root. Thereafter you can install a custom rom compatible with the kernel. Earlier on it was simple. Flash siyah or dorimanx and any custom rom will work on it. Kinda like a 'one size fits all' deal. However, right now with new mali drivers etc, some versions of a kernel are reqd based on which rom you plan to install. (JB with new mali drivers or JB without those new mali drivers/ICS)
CF-Root is the method I'd used..but right now it's not recommended, since if you're on certain 4.0.4 firmware, that is susceptible to the emmc brickbug I'm sure you've read about. Siyah, dori, etc kernels are safe.
HAXTREME said:
Some people want to simple root their phone and don't care too much for custom roms and stuff. So for such people, they can simply root their phone using one of the many rooting methods mentioned.
However, if your primary aim is to install a custom rom/ kernel, you can use Odin to flash a custom kernel on your phone. (like siyah, dorimanx, Philz, the list goes on..) and you'll have root. Thereafter you can install a custom rom compatible with the kernel. Earlier on it was simple. Flash siyah or dorimanx and any custom rom will work on it. Kinda like a 'one size fits all' deal. However, right now with new mali drivers etc, some versions of a kernel are reqd based on which rom you plan to install. (JB with new mali drivers or JB without those new mali drivers/ICS)
CF-Root is the method I'd used..but right now it's not recommended, since if you're on certain 4.0.4 firmware, that is susceptible to the emmc brickbug I'm sure you've read about. Siyah, dori, etc kernels are safe.
Click to expand...
Click to collapse
I see. Thanks. Flash kernel using odin. I see in this thread http://forum.xda-developers.com/showthread.php?t=1125282 , he said flashing a kernel is same like flashing a custom rom which is in CWM. Flash kernel in CWM? I thought the only way is using odin.
faiz5200 said:
I see. Thanks. Flash kernel using odin. I see in this thread http://forum.xda-developers.com/showthread.php?t=1125282 , he said flashing a kernel is same like flashing a custom rom which is in CWM. Flash kernel in CWM? I thought the only way is using odin.
Click to expand...
Click to collapse
For S2 we can. Because it won't increase your flash counter. But I never tried flashing through CWM.
Sent from my GT-I9100 using xda app-developers app
faiz5200 said:
I see. Thanks. Flash kernel using odin. I see in this thread http://forum.xda-developers.com/showthread.php?t=1125282 , he said flashing a kernel is same like flashing a custom rom which is in CWM. Flash kernel in CWM? I thought the only way is using odin.
Click to expand...
Click to collapse
There are two ways of flashing a kernel.
1. Use the .tar version of the kernel and flash via Odin
(the same way you'd flash the cf-root kernel you'd mentioned in a post above. I'll assume you know the steps as they're mentioned in chainfire's post. Or there are many posts on that topic)
Advantages: tried and tested route, simple one step method. You're rooted and have a custom kernel in about 30 secs.
Disadvantage: You rely on Odin and the connection to your computer which some don't trust. Increases flash counter.
2. Use the .zip version of the kernel and flash via CWM.
Since in this case you need CWM to start off with, you can use Rachmat3's method described HERE to get temporary CWM first.
Advantages: No computer needed. Everything happens through your phone. Flash counter isnt increased.
Disadvantages: Can be a little finicky at times..but you'll get there eventually. Involves 2 steps. First get temporary CWM, then install custom kernel via cwm.
You can start off with a very popular kernel. Gokhanmoral's siyah kernel.Both the zip and tar versions are available downloadable from HERE
HAXTREME said:
There are two ways of flashing a kernel.
1. Use the .tar version of the kernel and flash via Odin
(the same way you'd flash the cf-root kernel you'd mentioned in a post above. I'll assume you know the steps as they're mentioned in chainfire's post. Or there are many posts on that topic)
Advantages: tried and tested route, simple one step method. You're rooted and have a custom kernel in about 30 secs.
Disadvantage: You rely on Odin and the connection to your computer which some don't trust. Increases flash counter.
2. Use the .zip version of the kernel and flash via CWM.
Since in this case you need CWM to start off with, you can use Rachmat3's method described HERE to get temporary CWM first.
Advantages: No computer needed. Everything happens through your phone. Flash counter isnt increased.
Disadvantages: Can be a little finicky at times..but you'll get there eventually. Involves 2 steps. First get temporary CWM, then install custom kernel via cwm.
You can start off with a very popular kernel. Gokhanmoral's siyah kernel.Both the zip and tar versions are available downloadable from HERE
Click to expand...
Click to collapse
Another disadvantage of "not using" odin is when you cant enter cwm.
I use cwm and mobile odin.I flashed a kernel and couldnt access cwm nor phone would boot.
So I had to fix it using my pc via odin.