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I'm soon getting an SGS2 and I've had a search around the forums here and elsewhere, but I haven't found anything really conclusive, so here I am.
I want to root and run a custom ROM on my device. Mine will be brand new from Vodafone, so what is the first thing I should do? Any replies are much appreciated.
DannyDrama said:
I'm soon getting an SGS2 and I've had a search around the forums here and elsewhere, but I haven't found anything really conclusive, so here I am.
I want to root and run a custom ROM on my device. Mine will be brand new from Vodafone, so what is the first thing I should do? Any replies are much appreciated.
Click to expand...
Click to collapse
1. cf root
2. install a custom rom
3. unlock the sim on your phone using the app from the market
What does cf stand for?
Thanks for the reply, I was confused as to what order to do it all in!
Chainfire - it's the dev's username. You'll see a lot of great of stuff made by that guy.
Sent from my GT-I9100
Yes. You must wipe/factory reset before flashing a custom rom when coming from stock.
Sent from my GT-I9100 using Tapatalk
My advice to you, read, read then read some more, if you don't even know what CF means, that is a sure indicator that you have not read enough.
If your interested in rooting, visit the Galaxy S II Original Android Development forum and read, trust me, it would be for your benefit that you understand exactly what you are doing, asking questions while doing it is not the way to go, things may go wrong (very rare), but it happens.
And everyone here has told you how to root but no one has mentioned the importance of the Backup of the EFS folder, it should be the first thing on agenda after rooting.
A couple of days reading the guides etc is far more valuable than a custom rom .
Unless you are one who belives its best to go blindly into the unknown .
jje
Sent from my GT-I9100 using xda premium
I have heard of Chainfire, he was the first to root, right? I just hadn't head the abbreviation before. I'm reading non-stop before I do anything. I have a desire on 2.3, so I know my way around CWM. I still need to learn how to use KIES and ODIN. I certainly don't think going in blindly is the way to go at all. Not since this is an early upgrade anyway!
I've also seen a USB chip the resets the Samsung counter and removes the dreaded YTOD (Yellow Triangle Of Doom). Will I be able to remove that through any other way, ie splash screen/boot screen?
Sent from my HTC Desire using Tapatalk
DannyDrama said:
go at all. Not since this is an early upgrade anyway!
I've also seen a USB chip the resets the Samsung counter and removes the dreaded YTOD (Yellow Triangle Of Doom). Will I be able to remove that through any other way, ie splash screen/boot screen?
Flash stock kernel removes yellow but does not reset rom counter .
jje
Click to expand...
Click to collapse
hi all i just got my galaxy s2 today and have no idea where to start with putting a rom on ot anything. so any help would be great thanks
First you need to be rooted(your phone not you)and then go to the Development section and you will find a list of different ROMs.Its a matter of finding what you want in a ROM and downloading and trying each one.Usually the ROM page has the download and install instructions writen on it.You need to be rooted to have CWM.Ill leave a link to my ROM so you can see what I mean.Below the different ROM versions you will see install instructions.If your not sure what root is let me know
http://forum.xda-developers.com/showthread.php?t=1290468
Spend some time using your phone to get used to It before flashing. This will give you a better idea of what you like and don't like about it.
Armed with that info you can read up on each custom Rom to see if they offer what you want.
Read read and when you think you are ready to flash read some more.
Sent from my GT-I9100 using XDA App
cooza said:
First you need to be rooted(your phone not you)and then go to the Development section and you will find a list of different ROMs.Its a matter of finding what you want in a ROM and downloading and trying each one.Usually the ROM page has the download and install instructions writen on it.You need to be rooted to have CWM.Ill leave a link to my ROM so you can see what I mean.Below the different ROM versions you will see install instructions.If your not sure what root is let me know
http://forum.xda-developers.com/showthread.php?t=1290468
Click to expand...
Click to collapse
Hi thanks for your reply and im not sure what root is.
aceofclubs said:
Spend some time using your phone to get used to It before flashing. This will give you a better idea of what you like and don't like about it.
Armed with that info you can read up on each custom Rom to see if they offer what you want.
Read read and when you think you are ready to flash read some more.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
X2 read alot, play with the phone, figure things out. There is so much to learn so you don't turn your phone into a brick. Rooting means you become a superuser, you take ownership so you can customize your phone.
Sent from my SAMSUNG-SGH-I777 using xda premium
yes i realise this. my cousin does this alot with his galaxys s2 root it etc. and his set up is amazing. i will just need to get used to it
Gav6363 said:
yes i realise this. my cousin does this alot with his galaxys s2 root it etc. and his set up is amazing. i will just need to get used to it
Click to expand...
Click to collapse
Yeah buddy it won't take you long to get a handle on things. It's pretty easy to get it right.
Sent from my GT-I9100 using XDA App
aceofclubs said:
Yeah buddy it won't take you long to get a handle on things. It's pretty easy to get it right.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Thanks im sure it wont well i hop not lol
Please don't even think about flashing a custom rom or rooting your phone until you're comfortable/confident enough to do it without making posts like this.
I have seen so many people in your situation on here stuff their phone up over the last few weeks because they were in too much of a hurry to mess with their phone.
AceOfClubs (and others) has given you good advice, heed it :-|
Read the CFRoot thread until you are so confident with rooting the phone that you could do it in your sleep, and then root your phone with the CFRoot kernel that corresponds to your current stock kernel. Not before.
From there, read the various development threads about different roms/kernels, get to know the various features/advantages of each (and ask questions if necessary...about the rom/kernel itself, not the process of flashing same) and then when you've settled on a rom or kernel and you're completely confident about the flashing process, flash it.
Doing this will mean you'll get it right the first time. This will result in:-
A) You not posting yet another "OMG mah fone is teh brikked helpz !" thread.
B) You not having to do without using your phone for x days (weeks) should you mess it up.
Clear ? Good
MistahBungle said:
Please don't even think about flashing a custom rom or rooting your phone until you're comfortable/confident enough to do it without making posts like this.
I have seen so many people in your situation on here stuff their phone up over the last few weeks because they were in too much of a hurry to mess with their phone.
AceOfClubs (and others) has given you good advice, heed it :-|
Read the CFRoot thread until you are so confident with rooting the phone that you could do it in your sleep, and then root your phone with the CFRoot kernel that corresponds to your current stock kernel. Not before.
From there, read the various development threads about different roms/kernels, get to know the various features/advantages of each (and ask questions if necessary...about the rom/kernel itself, not the process of flashing same) and then when you've settled on a rom or kernel and you're completely confident about the flashing process, flash it.
Doing this will mean you'll get it right the first time. This will result in:-
A) You not posting yet another "OMG mah fone is teh brikked helpz !" thread.
B) You not having to do without using your phone for x days (weeks) should you mess it up.
Clear ? Good
Click to expand...
Click to collapse
Hi im not in a rush to do it so dont worry and im not comfortable to do it yet either. untill i am it will stay as stock. Thanks for your concern
Gav6363 said:
Hi thanks for your reply and im not sure what root is.
Click to expand...
Click to collapse
Root is changing the kernel in your phone to give you super user access which is needed to flash ROMs and firmwares.Also along with flashing there are other things to read up on like an EFS/IMEI file backups which are vital,also nandroid and Titanium backups.As you can see there are alot of good people here willing to help with good advice and all are correct in saying that you shouldnt rush into things.Take your time,read up and dont be afraid to ask questions.Play with your phone and when you know it well enough and have seen enough threads on what and what not to do then you can take the first step and root.First read up on rooting then EFS/IMEI backups and why they are needed.The rest will come in time.Id rather see you here asking questions and not in another thread saying "Help I just bricked my phone!!"
Hi,
I recently upgraded to this device from the EVO3D. I have a question with regards to rooting.
With the EVO, every time there was a major OTA update, there were always firmware/radio updates to flash through the bootloader with fastboot in addition to the ROM base itself.
Does this exist with Samsung phones or is everything contained within the ROM package itself? I have a phone with 2.3.4 and was going to try a 2.3.6 ROM but didn't want to leave any important updates behind.
I have read through all the stickies and page through the general as well as the Q& A section and did not see it addressed.
Thanks for the help.
Obviously anyone who wants to chime in is more than welcome.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
jpreichart said:
Hi,
I recently upgraded to this device from the EVO3D. I have a question with regards to rooting.
With the EVO, every time there was a major OTA update, there were always firmware/radio updates to flash through the bootloader with fastboot in addition to the ROM base itself.
Does this exist with Samsung phones or is everything contained within the ROM package itself? I have a phone with 2.3.4 and was going to try a 2.3.6 ROM but didn't want to leave any important updates behind.
I have read through all the stickies and page through the general as well as the Q& A section and did not see it addressed.
Thanks for the help.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Basically, anything is independently flashable. Sometimes there will be interdependencies between components, but not usually.
1) Right now there is NO reason to ever flash bootloaders - avoid it. Any CWM-flashable firmware in these forums does not include BLs. (This may change with ICS.)
2) Don't flash anything with a .PIT in Odin - it'll hose your device.
3) You can mix and match any radio firmware with any system firmware. (At least for Gingerbread. ICS is an unknown.) It's not like many HTC devices, where the radio acted as a bootloader for the applications processor - on Samsungs, the AP bootloads the modem.
4) Older kernels can cause problems with newer firmwares. My latest releases should work with any Gingerbread firmware other than AOSP/CM7.
Thank you. I am a forever Noob.
With HTC the updates were always stripped of any bootloader updates to remain s-off. The remainder was always flashed through recovery or fastboot. I am trying to understand this wotld a little more. I have become very afraid of bootloaders from my time there.
I would assume the good people here will help guys like me if things change with ICS?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
jpreichart said:
Thank you. I am a forever Noob.
With HTC the updates were always stripped of any bootloader updates to remain s-off. The remainder was always flashed through recovery or fastboot. I am trying to understand this wotld a little more. I have become very afraid of bootloaders from my time there.
I would assume the good people here will help guys like me if things change with ICS?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Yup. Any ICS update should contain clear instructions on if the bootloader situation changes. (Right now, there's no evidence of this.)
It is my opinion that anyone who provides a bootloader flash should always do it separately and make it clear under what circumstances the user should flash the BLs.
In general, be careful about flashing factory-originated firmware updates as these can include bootloaders. Almost anything here won't. (However, the first UCKK6 leaks did... Next time an I777 leak shows up we know how to remove the BLs though.)
One last question. You have been very helpful. If i use your kernel to get CWM onto the phone to avoid the flash counter, it will play nice with stock rooted 2.3.4?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
jpreichart said:
Thank you. I am a forever Noob.
Click to expand...
Click to collapse
This is by choice. Just by spending a little time reading the FAQ, looking through the stickies and perusing the forum in general would have probably prevented you from starting this thread. Always do a search before starting a new thread and whenever possible post to an already existing related thread rather than start a new one. No more newbie pass for you.
Miami_Son said:
This is by choice. Just by spending a little time reading the FAQ, looking through the stickies and perusing the forum in general would have probably prevented you from starting this thread. Always do a search before starting a new thread and whenever possible post to an already existing related thread rather than start a new one. No more newbie pass for you.
Click to expand...
Click to collapse
I mentioned above that I have / had searched. I did not find the same question asked. If I missed it, I apologize. It took me a few days to get the courage to post. I did not want to start a discussion and get 5 responses like yours (it seems that is the most common response people get when they ask questions).
Sometimes you have to ask a question in a way that makes sense to you to understand the answer. Otherwise what is the point of a Q& A section?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
jpreichart said:
One last question. You have been very helpful. If i use your kernel to get CWM onto the phone to avoid the flash counter, it will play nice with stock rooted 2.3.4?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Yes, it should. You'll need to root your phone to install my kernel without the counter - either SuperOneClick (works for UCKH7) or my prerooted system image (flashing custom system images doesn't trigger the counter)
jpreichart said:
Sometimes you have to ask a question in a way that makes sense to you to understand the answer. Otherwise what is the point of a Q& A section?
Click to expand...
Click to collapse
It certianly isn't to ask questions that can be answered with an investment in time and reading or that have been asked and asnwered already.
Here's a tip I and others give newbies looking for answers: During the initial period of looking/searching/reading, do NOT use your phone. Use a PC so you can see full pages and it will be easier to gather information. Tapatalk or the XDA app should be limited to making replies or casual reading of the forum, not as a way to research these often complex subjects.
Miami_Son said:
It certianly isn't to ask questions that can be answered with an investment in time and reading or that have been asked and asnwered already.
Here's a tip I and others give newbies looking for answers: During the initial period of looking/searching/reading, do NOT use your phone. Use a PC so you can see full pages and it will be easier to gather information. Tapatalk or the XDA app should be limited to making replies or casual reading of the forum, not as a way to research these often complex subjects.
Click to expand...
Click to collapse
I agree with you. For what it's worth, I did search using a desktop. Just typing on my phone. I can't put it down!
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Hey,
So I upgraded my Samsung Galaxy S II I9100 to ICS 4.0.4 before 1-2 months. The new graphics and extra features looked really great at first, but 2 hours after using it on normal applications (Facebook, YouTube, Twitter.) It froze and did nothing, like literally just freezes at the screen it lagged on. This has been happening continuously for the past 2 months and I'm really sick of it, I upgraded my phone and my dad's one (both SGS2I9100) using Samsung Kies, ever since that, it just keeps freezing like 4 times a day and I have to take off my battery and re-put it so it can reset since nothing will do this.. The old the firmware I had was the really amazingly going well and never lagged even once (I can't remember which firmware though). I'm a total noob, I didn't and don't have my phone rooted or some stuff like that, expect downloading APKs off the internet lol.
I really want someone to help me in this, I know there must be a solution since I don't think I'm the only one who has been annoyed by this, specially when it happens on a daily routine. I searched over the forums and found nothing. I know there must be something talking about the issue but I'm too nooby to understand the article titles which might be a solution of my problem.
Please help me in my problem it really bothers me and xda is my last hope...
Thank you all.
Note: please use simple terms because I really won't understand, and if you do, please teach me them lol.
Well, first of all your up for some reading.
While you go from thread to thread you'll run into the world of ROMs and flashing.
The first thing you have to know is that your device comes with 4 things:
1) Hardware (dah)
2) Kernel (link between Hardware & OS)
3) ROM (OS)
4) Modem (Baseband for your country / Region)
You are actually on 4.0.4, It's Kernel is known to suffer the brick bug issue.
Flashing is used to get the best from your device, in relation to your personal user experience. You got plenty of options like Stock Roms and Custom Roms, as well as Stock Kernels and custom kernels.
When flashing stock roms you get the chance to get rid of your carrier stuff (bloatware and animation boot) by getting an unbranded ROM (samsung official stock rom), you can either go down to previous versions (Gingerbread, ICS 4.0.3) or even go up (Jelly bean leaked ROM). Carrier branded or not, it's just a matter of choice.
When flashing custom roms you get a whole lot of roms to choose from. The most common are CyanogenMod (CM), RR (revolution remix), Omega and etcetera. These roms take the best of the stock roms and leave the worst, so you'll get a more personalized experience.
When Flashing custom kernels your trying to get the best performance for your ROM, this means you can use a stock ROM with a custom kernel.
Modems are basebands that let your carrier network function in your region / country, so if you flash a modem, your network might not work, so you'll have to flash another modem and so on.
Check all that out and if you decide to go on flashing, we are here to help you on the easiest / safest way to do it.
rembember to read and re-read all first.
you did notice this is now your official post right?
Okay I kinda get it, can you kindly please send me links that will help my problem? I'd rather downgrade with Stock ROM than a costum one.
Another thing, will it affect anything that has to do with my Carier? and does my phone have to be rooted in order this to work? If so how can I?
Many thanks.
Sent from my GT-I9100 using xda app-developers app
try sammobile.com
they have plenty of stock roms.
I'd personally advice you to get 4.0.3 stock ROM. What's you carrier? I could look it up for you while you learn about flashing/downgrade.
That's what I was thinking of too, and it's Orange IL (Israel)
I need you you to tell me how do it too please
Sent from my GT-I9100 using xda app-developers app
The best option for you is to get Mobile Odin Pro, got 5 bucks to spare in google play?
After installing that, what should I do?
Sent from my GT-I9100 using xda app-developers app
OmarDaoudi said:
After installing that, what should I do?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
here, download the official ROM of your choice (you can type ctrl + f and search orange):
http://forum.xda-developers.com/showthread.php?t=1113928
Remember, 4.0.3 is the best option for you.
OmarDaoudi said:
After installing that, what should I do?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
You really should start reading. The people who posted above didn't get all the knowledge by inventing it by themselves, but through searching, reading and trying to follow rhe guides. Search for the threads that are made for people like you who are quite new to this
Sent from the Matrix
Donnie Sins said:
You really should start reading. The people who posted above didn't get all the knowledge by inventing it by themselves, but through searching, reading and trying to follow rhe guides. Search for the threads that are made for people like you who are quite new to this
Sent from the Matrix
Click to expand...
Click to collapse
I'm goin' clubbin in a couple of hours, he'll have to
gastonw said:
I'm goin' clubbin in a couple of hours, he'll have to
Click to expand...
Click to collapse
Priorities man Wouldn't you rather be on xda instead of dancing in a club?^^
Sent from the Matrix
werewolves can't type, everybody knows that!
Donnie Sins said:
You really should start reading. The people who posted above didn't get all the knowledge by inventing it by themselves, but through searching, reading and trying to follow rhe guides. Search for the threads that are made for people like you who are quite new to this
Click to expand...
Click to collapse
There are 2 types of people: those who do not like to read and the rest who like. Then those who like may not understand. Now, those who do not read and those who read but don't understand actually contribute 99% of the posts in every forums you visit.
Sent from my GT-I9100 using Tapatalk 2
xdanoober said:
There are 2 types of people: those who do not like to read and the rest who like. Then those who like may not understand. Now, those who do not read and those who read but don't understand actually contribute 99% of the posts in every forums you visit.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
When the guy doesn't read it was a good advice to start doing it, because it's not really allowed to ask everything that is allready asked so many times.
When he actually does read, but doesn't understand (which I don't think because he's asking basic question about steps he must take) then it's maybe better to rethink if he's really going to flash something because he doesn't know what he's doing
Sent from the Matrix
Okay, so I did some reading and figured out that I needed to root my phone, I'm on this thread which was recommended by many people http://forum.xda-developers.com/showthread.php?t=1501719 . Am I doing it the right thing? since I want to downgrade to stock 4.0.3?
Second question, I downloaded the CWM zip and extractred the CWM file on SDCARD, it says reboot to recovery, how can I do that?
OmarDaoudi said:
Okay, so I did some reading and figured out that I needed to root my phone, I'm on this thread which was recommended by many people http://forum.xda-developers.com/showthread.php?t=1501719 . Am I doing it the right thing? since I want to downgrade to stock 4.0.3?
Second question, I downloaded the CWM zip and extractred the CWM file on SDCARD, it says reboot to recovery, how can I do that?
Click to expand...
Click to collapse
Why don't you just flash a stock rom through Odin? No offence but I'm serious, the lack of knowledge you show here by asking about Recovery to me seems to be a sign you shouldn't root it at all, and learn a whole lot more about flashing and more if you want to.
Sent from the Matrix
Donnie Sins said:
Why don't you just flash a stock rom through Odin? No offence but I'm serious, the lack of knowledge you show here by asking about Recovery to me seems to be a sign you shouldn't root it at all, and learn a whole lot more about flashing and more if you want to.
Sent from the Matrix
Click to expand...
Click to collapse
I managed to root my phone, I have SuperSU,CWM now on my phone, sorry for the stupid questions did more readings, my goal now is to downgrade to stock 4.0.3, how can I do that?
OmarDaoudi said:
I managed to root my phone, I have SuperSU,CWM now on my phone, sorry for the stupid questions did more readings, my goal now is to downgrade to stock 4.0.3, how can I do that?
Click to expand...
Click to collapse
These all aren't stupid questions, because everybody had to go through them the first time. It's just that all the questions have allready been answered here on xda, so that's why you've been told to search and read for yourself.
Here's an article that can be helpfull:
http://www.jayceooi.com/2011/08/08/how-to-install-firmware-on-samsung-galaxy-s2-with-odin-video/
If you don't fully understand it, please look into the guides in the S2 section.
Sent from the Matrix
Thanks all for your help! I managed to successfully downgrade my SGS2 from 4.0.4 to 4.0.3 after your guys helps, I should have read in the first place which I did after you guys gave me the headlines of what to do!
Now I think I'm and advanced noobie.
Thanks a lot again! :laugh:
Hi guys,cant seem to find where to start its all a real blurr.
I jave a sgs2 with 4.2.2 on it and i hate my huawai thing so wanna root the s2 and flash custom firmware.
Installed kies already kies recognises the phone but odin doesnt when i put it in download mode,
Can someone pleaseplease point me to the rigjt thread or giva a step by step tutorial because im not getting it clear on my head.
I had a sgs1,galaxy nexus and a xperia z so have a little experience so i dont know why im strugling
Sent from my HUAWEI P6-U06 using XDA Free mobile app
For problems with Odin flashing, you need Hopper8's 'Odin troubleshooting' thread stickied in General. Covers every possible scenario in these situations.
For root, you need PhilZ. Search for the thread. If you find the instructions 'difficult', don't attempt anything until you understand what it is you're trying to do. You risk breaking your phone if you ignore this. I've never seen a guide/tutorial on here that was 'difficult' (people who find them difficult often don't have a handle on 'the basics'; refer to my last para).
For flashing custom roms, you need to simply follow the flashing instructions which are always simple & always on the first page of the thread devoted to every rom.
Guides/tutorials stickied near the top of General are a fantastic grounding in what makes this phone tick if you're serious about learning this stuff (99.99% of people who come here aren't though).
I saw a thread on philZ i read there that i can just flash the kernel to obtain root?
And i will look in to all youur pointers thank you
Edit.
Most roms OP state.... Just flash in cwm
Sent from my HUAWEI P6-U06 using XDA Free mobile app
Yep. Read the PhilZ thread so you can work out which kernel you need, flash the kernel & you get a rooted phone + CWM. And yeah, pretty much every rom flash is put the files on your internal or external SD card, boot into CWRecovery, navigate to files, flash. Done.
One small thing to be aware of, newer 'KK based roms' tend to require newer versions of CWM in order to flash, so make sure you read the threads devoted to those especially thoroughly if you decide to flash them.
Yeah i kow that from my xperia z, the newer cwm is needed foot kk .
And what about the bootloader do i need to unlock it?
Im sorry for all the questions its been a while since i flashed a sammy
Sent from my HUAWEI P6-U06 using XDA Free mobile app
My thought: You say you have 4.2.2, are you sure it is a 9100 and not the sgs2+. Different hardware .
Sent from my GT-I9100 using xda premium
Im from the netherlands and im sure its a i9100
Sent from my HUAWEI P6-U06 using XDA Free mobile app
Bootloader is not locked, no need to touch it, read the guides/tutorials & you'll learn this stuff - no more answers to basic questions you can easily find answers to.