Hi I am going to be rooting this phone soon but before I do I want to make sure I fully understand everything I do because I am nosey and this is how I learn. So I ask alot of questions usually NOOB questions.
So As I understand it All I have to do is install a custom kernel which has clockworkmod on it. Now when I do that is CWM installed on the recovery partition of the phone so if all else fails I can still get into CWM to install a backup? I know if you use rom manager it fake flashes and the only way to get into CWM is through rom manager and mif the phone wont boot you are screwd. Also this phone has download mode is that a factory way to flash things? Like when I install a ROM do I flash it in download mode or do I flash it in Clockworkmod or do both work? Also I noticed that there are different versions of this phone I am guessing for different carriers. I have SGHt-989 so are all ropms okay for all the model or are they model specific? It seems that the 9100 is the most popular model. I am sorry for all the questions but as soon as I am comfortable with this device I can start to understand it.
Thanks alot
Charlie
To root your T-mobile SGS2, watch this video
http://www.youtube.com/watch?v=lfA1KKzXkFU
Rom manager only does fake flashes. Only way to get cwm on our phone is via flashing a kernel that supports it.
Download mode can be used for first time rooting (to flash kernels), also for flashing roms via odin.
Once you're rooted, with a cwm supported kernel, you can use the clockwork recovery to flash roms, or even kernels. This way, it deosn't increase your binary counter.
i9100 is more popular because it is the international model and most common.
Related
Hi, I have the I9100 from two weeks, and I had noticed that samsung phone architecture is slightly different from other android phones.
Before I9100, I had an HTC MAGIC, HTC HERO, NEXUS ONE, ZTE BLADE.. all of these phones are managed and structured in the same way: Bootloader, Recovery, and ROM.
When I get the root, I can flash the recovery, and then I'm sure that if I flash a buggy rom (with a buggy kernel) I can always start the recovery and flash another one.
In samsung is different and I can't find a technical guide on how this phone works.
It seems that the recovery is INSIDE the kernel. Then if I flash a buggy kernel I loose the recovery!
Another strange thing... why do I need to use odin? And why some of the roms (also here in xda) must be installed trough it and others trough recovery?
Why some people have flashed a buggy kernel and can't flash trough odin?
What's the download mode is used for?
Is download mode is a state of the phone that is loaded before and without the kernel?
Why I can't use rom manager (installed trough the market) to flash my recovery and I need to use the CWM that is hardcoded inside the kernel?
I need some answers because I don't wanna follow the guide without knowing what I am do.
Can someone help me?
... no one answered me yet?
Are my questions, silly questions?
I looked into the guides I found here and I didn't found any answer for me..
Well I Don't own a s2 but samsung androids are different
There is no separate recovery partition so it needs to be in the kernel/rom
So its obvious an other method is needed to flash roms if something bad happens with the current rom/kernel so odin and download mode exist
Very Interesting... but.. is download mode loaded before (ad instead) kernel?
If this it is a restore operation should be loaded always.. also from a complete wipe of everything right?
But.. I read somewhere that some buggy kernel does not allow odin to find the phone..
Then.. If I lose the recovery and odin does not recognize my phone... Am I in a 'deadlock' situation?
Hello everyone,
I'm just about to go out of my mind, haha. I've successfully rooted my phone and I am interested in installing a new, custom ROM. However, I want to be 100% sure that I am not leading myself into the path of bricking. I have a couple questions that I think are basic enough, but haven't found an answer to anywhere online.
1.) Do I need a specific kernel and/or firmware in order to install a custom ROM?
2.) These are my specs for my phone
Android 2.3.3
Baseband: I9100DXKI1
Kernel: I9100DXKI2
Looking at my specs, will I be able to install this rom: http://forum.xda-developers.com/showthread.php?t=1198334 ?
Will any other ROM work for my phone? Now that it is rooted, am I freely able to install any ROM using clockworkmod or odin without having to change the kernels?
I'm very new to this and I'm hoping somoone can help me out with this.
Thanks a ton in advance!
Just rooting is not enough to install custom rom. You need to install clockworkmod recovery either through rom manager or flash a custom kernel which has CWM.
You can flash any kernel compatible with your device (for example, you cannot flash I9100G kernel/firmware on I9100 model).
You can get a lot of information here at xda. All the developers here are very friendly and co-operative.
You're good to go. Backup apps and some data using Titanium backup and/or My Backup Pro or something like those. Then boot into recovery, make a nandroid backup (can be found in the recovery menu), and flash the rom of your choice. You can flash any rom you like, just don't forget to wipe! This is also an option in recovery, wipe data/factory reset. You can also wipe dalvik-cache (found under 'advanced'). Have fun flashing!
Thanks for filling me in guys. I do have CWM installed on the phone, so I'll back up and try to flash. We'll see if I don't brick the phone somehow, haha.
roboedar said:
Thanks for filling me in guys. I do have CWM installed on the phone, so I'll back up and try to flash. We'll see if I don't brick the phone somehow, haha.
Click to expand...
Click to collapse
Well obviously you wont, all you can do with flashing a wrong rom is getting boot loop, you can always restore your previous rom via nandroid backup. Happy flashing
I've tried multiple tutorials to root my phone but whenever I flash the CWM and restart my phone in recovery mode I still get the default Android recovery screen... What should I do?
CWM flashed on its own (I.E not 'baked' into a kernel) always only persists until the next reboot.
It's designed to allow you to flash whatever rom/kernel you want which will overwrite the temporary CWM version you flashed with the one baked into the kernel of the rom you flash/kernel you flash on its own.
If you want permanent CWM from the getgo, flash a kernel with CWM baked into it. Or use another root method. I'm not sure about either of those things (nor will most people on here be), because very few people here have this model.
I found this thread by searching; if you're having problems with a specific root method, I suggest you ask in those threads so you get 'accurate' help from people who actually have the same phone as you.
ibud said:
I've tried multiple tutorials to root my phone but whenever I flash the CWM and restart my phone in recovery mode I still get the default Android recovery screen... What should I do?
Click to expand...
Click to collapse
maybe get the dorimanx v8.34 kernel ? root and kernel at the same time, its good, quite perfect just. dorimanx v9.xx is still in test and someone told me its bugged, so i would flash the v8.34
First the specs. Samsung Galaxy s2 GT-9100 running Android 4.1.2 Build XWLSH Kernal 3.0.31-889555
Need a touch of help here. Finally had the nerve to root the GS2 on the weekend and clean out all the crud not required... so far so good
Had no success in attempts to install CWM Recovery through ROM Manager (Recovery setup > ClockworkMod Recovery > Galaxy S2 i9100 > "does not have an officially supported...."). Also found the Recovery builds on the official site but no guides whatsoever as to how to install... oh so helpful
Finally came across a guide at galaxys2root[dot]com on installing recovery from download mode using Odin. Ran through the process and ended up stuck at boot with no way of proceeding. After a panic session, was able to recover from back-up (thank god I backed up the ROM and all data before attempting to install CWM recovery). Now I'm right back where I started with no idea how to go replacing the stock recovery.
Can someone please shine some light on the situation? At a complete loss as to how to get the CWM Recovery on the phone without bricking it.
Cheers in advance
1) Don't use Rom Manager. At all. Uninstall it. It will break recovery & cause bootloop eventually if you continue to use it.
2) Thread stickied near the top of Q&A has all the info you need. Essentially, any CWM you flash independent of the kernel will only persist until the next reboot. Reason being recovery is baked into the kernel on the S2 & isn't a separate partition like other phones. So you flash a custom kernel, you end up with rooted phone + permanent CWM.
MistahBungle said:
1) Don't use Rom Manager. At all. Uninstall it. It will break recovery & cause bootloop eventually if you continue to use it.
2) Thread stickied near the top of Q&A has all the info you need. Essentially, any CWM you flash independent of the kernel will only persist until the next reboot. Reason being recovery is baked into the kernel on the S2 & isn't a separate partition like other phones. So you flash a custom kernel, you end up with rooted phone + permanent CWM.
Click to expand...
Click to collapse
A huge thankyou for pointing me in the right direction. I had since the original post found Mobile Odin (invested in the pro version) and installed the CWM Recovery from the their site... only for it to revert back to stock recover screen At least now I know why.
After much hunting around - I notice the stickied posts don't make it easy to find the correct kernel for for the AU i9100 - I found the PhilZ cmw6 kernel build.... used Mobile Odin to flash and all is now rosy.
Now question.... I was under the impression that ROM Manager was required as an install with CWM. I use Online Nandroid Backup to create full ROM/Data backups and trying out Nandroid Manager for selective recovery.... is that all I need then now that CWM is successfully installed in recovery?
Cheers again
Can't speak to those products as I've never used them, but Rom Manager & the S2 is a big no no. Doing nandroid backups, which is essentially a 'snapshot' of your phone at the time you make it, by simply booting into CWRecovery & also backing up apps/app settings with Titanium has always done the job for me.
Hello dear community
This is my very first thread I am making on this website, so please pardon me if I am on the wrong page of this website.
Anyways, I'm more or less desperate. I saw a youtube tutorial on how to install Android 4.4 Kit Kat on a Samsung Galaxy Note N7000 and I heard I'd need root AND a custom recovery.
Because I'm a total newbie to this kind of stuff, I tried the very first thing I saw that had something to do with custom recovery, because I already had my phone rooted. So, I looked up a tutorial on youtube on how to install CWM custom recovery and ended up with installing it successfully, but now my phone is stuck in a bootloop. As I already mentioned, I am a newbie and therefore I am very desperate at the moment, you know.
The only thing I can do is go to Recovery Mode, but if I try to turn the phone on it gets stuck in a bootloop (It actually doesn't loop at all, it just freezes at the moment when the Samsung Galaxy Note logo appears and doesnt do anything after that.).
I think my problem is that I actually threw a new Kernel on my phone, because the video title says "How to install Kernel with CWM [...]"
I would be very very very very very grateful if anyone was kind enough to help me get out of this!
I really need help!
Thanks!
PS.
If this helps you help me:
This happened when I had Android 4.1.2 installed.
There's going to be 2 ways to get out of this:
1) Reinstall the stock firmware via Odin.
2) Install a custom rom via recovery.
Personally, I'd go with number 2 because a) you wanted to update anyway and b) if you have the right recovery and rom, it'll be easier as you can just put the files you need on an external SD card and install via the custom recovery. Now, not all recoveries are able to flash any file. Many times you need specific ones to install the newer android versions. So, if you are wanting to install something 4.4 based, then using a recovery that was made, say, last year, probably will not work well if at all.
Another thing to try first, is to wipe the cache and dalvik cache in recovery since you said you tried to install a kernel. It is always recommended to wipe these when installing (assuming you did pick a compatible kernel with what you were trying to install).