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?
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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
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?
Hi all,
I rooted my SGS2 (KE7) with CF-Root ages ago and haven't done much since then, aside from take regular backups.
Looking at the Cyanogenmod stuff, I fancy giving it a go. All the guides talk about using the kernel at http://forum.xda-developers.com/showthread.php?t=1118693 .
Does anyone know if I can flash the cyanogenmod ROM using the recovery mode I have with CF-Root, or if I need to get use the kernel from the above patch first?
This morning I tried installing the kernel (from the CF-Root CWM), when my phone rebooted, the touchscreen worked on the unlock page but not once I unlocked (I use LauncherPro as my launcher). Rebooting into recovery mode didn't work (the phone just booted normally) so I reflashed CF-Root but still had the same problem however I could boot into recovery mode and restore this morning's backup.
Now, the phone boots (with the warning triangle, expected) but there is no response after I unlock for a minute or so. Setting the stock launcher back works but I'm confused about why this should happen and what I should do next.
Does anyone know why my non-stock launcher is now being non-responsive for the first minute after boot / what I can do to get it back?
Am I able to install cyanogen with CF-root, or do I need to use the kernel in the above link? and if so, do I need to do anything other than just flash and if not why didn't the phone boot into recovery when I tried it earlier?
Any suggestions gratefully received!
-Jeff
The cf-root kernel is all you need to install cm7.
peachpuff said:
The cf-root kernel is all you need to install cm7.
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Click to collapse
This is correct. However, after you install the cm7 .zip the first time, it will have only installed the kernel for cyanogen mod. So you will then need to boot back into recovery with 3 button mode and run the zip install again from there. You will then have CM7.
Electroz said:
This is correct. However, after you install the cm7 .zip the first time, it will have only installed the kernel for cyanogen mod. So you will then need to boot back into recovery with 3 button mode and run the zip install again from there. You will then have CM7.
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Don't quite understand this. I've got the cm_galaxys2_full-39.zip (100MB), I was going to put this on the SD card, boot into recovery mode and install from there. Are you saying I need to do this same process twice? (and if so, why does it only install the kernel the first time when it is the complete zip file?)
Cheers,
-Jeff
CF-root => Cyanogen mod
Hello everybody,
There are a few threads that discuss this question, but they all draw a different conclusion.
This one for instance : http://forum.xda-developers.com/showthread.php?t=1367933 (or if the link is broken, search for : How can i use cf-root kernel for cm7?).
In the thread above they claim that CF-root is not compatible with CM7, however in this very thread there is said that when installing the .zip file twice, it should work just fine. As i'd like to install CM7 on my CF-rooted S2, i have to know for sure:
Is there a way to install CM7 on a CF-rooted device?
Many thanks
Rom manager doesnt work with cf root, so to flash cm7 download the zip, boot into recovery, and flash the zip twice, and it will work.
Make sure you wipe data and cache, and take backups before you do.
Sent from my GT-I9100 using Tapatalk
Ok, i'll give it a go .
Thanks for the quick response, it is much appreciated!
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.
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.
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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.
why my device always gets stock when i try to install CWM recovery for my GT-I9100? i try to install the version 6.0.2.9 using odin but my device just boot with the start up "samsung galaxy I9100" then i hear a start up tone but the screen is just black then nothing,i just flash stock rom to back my phone to its normal condition but still want to have a CWM recovery on my rooted device please help me guys.
heres my device>>>>>
AFAIK, you can't just flash only cwm. It comes bundled with a custom kernel. You can try philz.
banjara said:
AFAIK, you can't just flash only cwm. It comes bundled with a custom kernel. You can try philz.
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wow thank you for this info i think i can have a CWM recovery only without installing custom kernel.i just dont want to install and change my stock rom and kernel because ive been experiencing some bug having custom rom and kernel. i just want to be rooted without changing stock rom and kernel really thank you for this.
If you just want to root without custom kernel, you can check it out.
http://www.ngopdul.com/en/androids/root-your-android-with-ease-using-easy-rooting-toolkit.html
Haven't tried it myself ever, so read it carefully before acting on it.