Roms will not flash. - Galaxy S II Q&A, Help & Troubleshooting

I have a galaxy S2 I9100M with bell mobility with ICS 4.0.3. It is rooted and running siyah kernel 4.1.2. And for some reason it will not flash ANY Rom. I do the whole wipe process. install the rom. and the phone just gets stuck on the Samsung screen. Won't boot into recovery only download mode? so i have to re flash my stock firmware through odin. I have tried many roms, all with the same outcome? I had previously flashed paranoid 4.1.1 and CM9 9.0.0 before but now it will not let me boot either. Is anyone else having this problem or does anyone know what I'm doing wrong?

Ethanp said:
I have a galaxy S2 I9100M with bell mobility with ICS 4.0.3. It is rooted and running siyah kernel 4.1.2. And for some reason it will not flash ANY Rom. I do the whole wipe process. install the rom. and the phone just gets stuck on the Samsung screen. Won't boot into recovery only download mode? so i have to re flash my stock firmware through odin. I have tried many roms, all with the same outcome? I had previously flashed paranoid 4.1.1 and CM9 9.0.0 before but now it will not let me boot either. Is anyone else having this problem or does anyone know what I'm doing wrong?
Click to expand...
Click to collapse
Sorry about that bro.
Visit this thread, for possible solution to your problem
Good luck

Something I do now after flashing a custom ROM is to "format /system" from the mount menu in recovery and also "fix permissions". Might be worth a try. Also, you could try removing folders on your SD card that contain data that are interfering with booting a custom ROM.
---------- Post added at 09:41 AM ---------- Previous post was at 09:06 AM ----------
Sorry, I should clarify what I said above, as format /system is done prior to flashing. What I do is:
Wipe data/factory reset
Mounts and storage-> Format /system
Flash custom ROM
Wipe Cache
Advanced-> Wipe dalvik cache
Fix permissions
Reboot

Thank's for the responses. I have tried both options and neither work. I managed to flash cm9 through odin but the gapps won't flash threw cwm and the home button is unresponsive in the rom. Very frustrating.

Ethanp said:
Thank's for the responses. I have tried both options and neither work. I managed to flash cm9 through odin but the gapps won't flash threw cwm and the home button is unresponsive in the rom. Very frustrating.
Click to expand...
Click to collapse
Your power button will work as home button too
Swyped from my Galaxy SII

Jokesy said:
Your power button will work as home button too
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Yea i noticed that. I'm just going to keep it stock I don't want to damage it worse then it is.

Related

[Q] CWM fail to update?

Hi there, I need your help and advice please.
Here’s my problem. My phone is the SGS2 running KI3 rooted with CF-root KI3 flashed the secure kernel and then flashed the zImage so I still have root CWM and to get rid of the yellow triangle. I have downloaded CM nightly 88 to my laptop and transferred it to my S2 via usb cable into the download folder.
Here’s where the problem comes into play when I run CF’s CWM and choose reboot into recovery I do a wipe/factory reset / wipe cache and update via sdcard, I pick the cm88 from the download folder and it starts to update and then stops. I reboot and it’s stuck on the Samsung S2 page (boot loop). I then have to get into the recovery and restore my phone to the previous state. Can someone help me I would like to try the CM’s custom rom but don’t know what I’m doing wrong? Thanks.
i have the exact same problem!
InFa_ReD_1 said:
Hi there, I need your help and advice please.
Here’s my problem. My phone is the SGS2 running KI3 rooted with CF-root KI3 flashed the secure kernel and then flashed the zImage so I still have root CWM and to get rid of the yellow triangle. I have downloaded CM nightly 88 to my laptop and transferred it to my S2 via usb cable into the download folder.
Here’s where the problem comes into play when I run CF’s CWM and choose reboot into recovery I do a wipe/factory reset / wipe cache and update via sdcard, I pick the cm88 from the download folder and it starts to update and then stops. I reboot and it’s stuck on the Samsung S2 page (boot loop). I then have to get into the recovery and restore my phone to the previous state. Can someone help me I would like to try the CM’s custom rom but don’t know what I’m doing wrong? Thanks.
Click to expand...
Click to collapse
try download it again. Sound like a corrupted package
Sent from my GT-I9100 using Tapatalk
rembrandtlnx said:
try download it again. Sound like a corrupted package
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
I tried and got the samething. I also tried a different cm nightly and got the same results.
InFa_ReD_1 said:
I tried and got the samething. I also tried a different cm nightly and got the same results.
Click to expand...
Click to collapse
me2 only stock roms work for me =(
I think there was an issue with the version of CWM used on the CF-roots since it's been modified by CF and because it's an older version.
After you've rooted with CF, try flashing a kernel on there with a newer version of CWM on there (I used codeworkx's kernel from the Cyanogenmod wiki I've attached below with CWM 4.0.1.4).
Once this kernel is on there, then try flashing the CM7 ROM as per this thread. I prefer flashing from recovery myself, but it's your call.
Make sure you flash it twice in a row if you're having issues.
The problem, as stated above is that cf root kernel installs a modified version of CWM that won't work with CM7. Another thing is you have to flash a stock KH3 because KI3 has the new bootloader (unless you flashed KI3 with the old bootloaders). Then, you have to flash the codeworkx kernel so you get a compatible version of CWM. Once in CWM clear data factory reset + clear cache partition + clear dalvik cache (from advanced).
THIS IS IMPORTANT: Flash the ROM from sd card and when finish do not reboot device, just flash it again without wiping anything in between, just 2 consecutives "install from sd card". When this is done you can reboot the system and then enter again to CWM to flash the google apps .zip file that you can download from the CM7 thread.
Hope this helped. When I flashed CM7 i had exactly the same problem and went back to stock cause it was a pain in the ass to flash it fr the first time. But once you get in CM7, everything becomes great and easy, and you can update the nighlies directly from ROM manager without doing any wiping. You just can't use ROM manager when getting to CM7 for the first time.
InFa_ReD_1 said:
Hi there, I need your help and advice please.
Here’s my problem. My phone is the SGS2 running KI3 rooted with CF-root KI3 flashed the secure kernel and then flashed the zImage so I still have root CWM and to get rid of the yellow triangle. I have downloaded CM nightly 88 to my laptop and transferred it to my S2 via usb cable into the download folder.
Here’s where the problem comes into play when I run CF’s CWM and choose reboot into recovery I do a wipe/factory reset / wipe cache and update via sdcard, I pick the cm88 from the download folder and it starts to update and then stops. I reboot and it’s stuck on the Samsung S2 page (boot loop). I then have to get into the recovery and restore my phone to the previous state. Can someone help me I would like to try the CM’s custom rom but don’t know what I’m doing wrong? Thanks.
Click to expand...
Click to collapse
DO NOT use cf-root to install CM7. It's stated by Codeworkx a lot of times in CM Q&A thread. Just flash his kernel to get cwm.
http://forum.xda-developers.com/showthread.php?t=1118693
Now you have the original cwm recovery (from Koush). Boot into recovery, Wipe data, cache, dalvik.
Install CM7 twice in a row without rebooting.
Then flash gapps (without rebooting) http://goo-inside.me/gapps/gapps-gb-20110828-signed.zip.
Now reboot. Wait for a few mins since system has to build dalvik cache. And you're all good to go
Worried about yellow triangle? Get a usb jig.
Siyah kernel 2.0 supports CM7 and miui. So....have fun.....!!
droidphile said:
DO NOT use cf-root to install CM7. It's stated by Codeworkx a lot of times in CM Q&A thread. Just flash his kernel to get cwm.
http://forum.xda-developers.com/showthread.php?t=1118693
Now you have the original cwm recovery (from Koush). Boot into recovery, Wipe data, cache, dalvik.
Install CM7 twice in a row without rebooting.
Then flash gapps (without rebooting) http://goo-inside.me/gapps/gapps-gb-20110828-signed.zip.
Now reboot. Wait for a few mins since system has to build dalvik cache. And you're all good to go
Worried about yellow triangle? Get a usb jig.
Siyah kernel 2.0 supports CM7 and miui. So....have fun.....!!
Click to expand...
Click to collapse
Thanks. Can i flash the orginal CWM over top the CF CWM?
InFa_ReD_1 said:
Thanks. Can i flash the orginal CWM over top the CF CWM?
Click to expand...
Click to collapse
I did it and didn't have any problems, just follow the steps as I posted above.
tomascunill said:
I did it and didn't have any problems, just follow the steps as I posted above.
Click to expand...
Click to collapse
Great thanks for the help it worked I'm now running CM7. One thing though I can make calls but have lost my network connection. Can someone help me with this? Sorry for all the questions I'm new to the whole smartphone business. Thanks.
Ok all fixed up thanks for all your help.

Installed Cyanogenmod 7.2 RC --> Kernel Panic...wtf are my options?

As the thread title states...I was on 7.1 and downloaded/updated it to 7.2 Now the phone doesn't boot up and all I get is the Kernel Panic Upload Mode.
Anyway I can fix this? And if so, is there a way of doing it without completely formatting my phone and losing all my apps?
Oh and if it makes any difference I had to install that Siyah Kernel or whatever it was called to get out of the bootloop issue that I had with CM7.1. I'm thinking that that may be causing the problem....? But then again what do I know
wipe cache only.
valentinrascu said:
wipe cache only.
Click to expand...
Click to collapse
How? I've been trying [Power+Volume Up+Home] and it hasn't been doing anything. Can I do it through download mode somehow?
Had this problem when i flashed Lite'ning rom. Had to go into download and flash stock with odin. Took me a few tries to actually get the rom to work. As far as I know, that'd be your only option, seeing as recovery doesn't work for you.
take a deep breath and read, there is a very small chance of bricking your phone just so you know. Flash back original with Odin and start everything again
thanks for the replies...looks like i'm gonna flash the stock firmware back and see what i can do about getting to CM7.2 to work. hopefully flashing stock firmware is enough. I can't imagine how this would completely brick my phone and render it unusable.
As an aside...wtf is the point of this "recovery mode" when the thing doesn't even work half the time?
Anywho...downloading the stock .exe file now from here: http://devsrom4android.blogspot.ca/2011/10/samsung-galaxy-s2-firmwares-bell-canada.html[/url
Ok so I flashed the stock rom and now I'm in Android system recovery: Should I just reboot system now or do I wipe data/factory reset or wipe cache partition??
nubreed000 said:
Ok so I flashed the stock rom and now I'm in Android system recovery: Should I just reboot system now or do I wipe data/factory reset or wipe cache partition??
Click to expand...
Click to collapse
If you flashed stock, you should be fine just rebooting.
Its stuck on the boot screen. I tried just rebooting, then wiping/factory reset, then both wipes...reinstalled stock a few times and nothing worked each time. I'm suck on the Samsung Galaxy SII GT-I9100 screen
:-\...when I go into recovery, I get a ton of red messages/errors
I'm gonna try somethig other than stock firmware see if that helps.
edit Ok so I rooted the phone and it got past the first boot screen and now appears to be stuck on the "animated S" boot screen...progress!!
nubreed000 said:
thanks for the replies...looks like i'm gonna flash the stock firmware back and see what i can do about getting to CM7.2 to work. hopefully flashing stock firmware is enough. I can't imagine how this would completely brick my phone and render it unusable.
As an aside...wtf is the point of this "recovery mode" when the thing doesn't even work half the time?
Anywho...downloading the stock .exe file now from here: http://devsrom4android.blogspot.ca/...msung and their changes to Android framework.
Click to expand...
Click to collapse
Ok everything back to somewhat normal. Stock ROM didn't work but 2.3.6 did, so I'm on that. Now do I wanna go back to CM is the question...
Either way, thanks again for all the replies and helping me out with this. Greatly appreciated!

Endless bootloop. I´m going crazy, pls help me

Can anyone help me please ?
If I try to flash any ROM (Tried to install paranoindandroid, Ressurection Rom, Slim Rom) I get stucked in endless bootloop. From time to time the phone boots ROM, but only thing that happens is that I see "Enter your PIN code" for like 1-2 secs and then phone restarts and bootloop continues. Fortunately, I have Nandroid backup of my previous ROM which is old like hell (It´s RebelAOKP 1.3 ROM) so I can download other ROMs from xda. I tried full wipe, flashing other kernels, flashing ROM several times, fixing permissions and I don´t know, everything what is in CWM.
I´m so frustrated, whole day I´m searching for solution but I can´t find anything helpfull so I hope that someone will help me. Please be good to me I´m little bit noob but flashed lot of ROMs and this happens to me for first time. I will appreciate every response.
THX for your help.
Robotr0n said:
Can anyone help me please ?
If I try to flash any ROM (Tried to install paranoindandroid, Ressurection Rom, Slim Rom) I get stucked in endless bootloop. From time to time the phone boots ROM, but only thing that happens is that I see "Enter your PIN code" for like 1-2 secs and then phone restarts and bootloop continues. Fortunately, I have Nandroid backup of my previous ROM which is old like hell (It´s RebelAOKP 1.3 ROM) so I can download other ROMs from xda. I tried full wipe, flashing other kernels, flashing ROM several times, fixing permissions and I don´t know, everything what is in CWM.
I´m so frustrated, whole day I´m searching for solution but I can´t find anything helpfull so I hope that someone will help me. Please be good to me I´m little bit noob but flashed lot of ROMs and this happens to me for first time. I will appreciate every response.
THX for your help.
Click to expand...
Click to collapse
A.
If i get your question very well,
1. Your device can only boot if you restore your old ROM.
2. Anytime you flash a new ROM, you always end up in bootloops
Please correct me if i got something wrong.
B.
Please provide answers to these questions:
1. What's your ROM details? Press include your phone's model no (goto SETTINGS -About, post everything you see)
2. Was your device carrier branded?
3. Was your device SIMlocked?
4. Please post all the steps you normally take while flashing a new ROM
Swyped from my Galaxy SII
Jokesy said:
A.
If i get your question very well,
1. Your device can only boot if you restore your old ROM.
2. Anytime you flash a new ROM, you always end up in bootloops
Please correct me if i got something wrong.
B.
Please provide answers to these questions:
1. What's your ROM details? Press include your phone's model no (goto SETTINGS -About, post everything you see)
2. Was your device carrier branded?
3. Was your device SIMlocked?
4. Please post all the steps you normally take while flashing a new ROM
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Alright Sir,
A
1. Correct
2. Correct
B
1. GT-I9100, 4.0.4, I9100XXLPX
Kernel:
3.0.32-FLUXI-XX.01-RC5.2+
[email protected])) 1SMP PREEMPT Sun May 27 14:22:38 CEST 2012
Build No.
IMM76I
Mod version
RebelAOKP-1.3-ICS20120531-SGS2
2. No
3. No
4. It depends on ROM which I want flash. I always follow all the steps on installation info, but generally I always do full wipe, wipe dalvik & cache, install ROM, optionally gapps, then again wipe cache & dalvik, fix permissions and then reboot.
Robotr0n said:
Alright Sir,
A
1. Correct
2. Correct
B
1. GT-I9100, 4.0.4, I9100XXLPX
Kernel:
3.0.32-FLUXI-XX.01-RC5.2+
[email protected])) 1SMP PREEMPT Sun May 27 14:22:38 CEST 2012
Build No.
IMM76I
Mod version
RebelAOKP-1.3-ICS20120531-SGS2
2. No
3. No
4. It depends on ROM which I want flash. I always follow all the steps on installation info, but generally I always do full wipe, wipe dalvik & cache, install ROM, optionally gapps, then again wipe cache & dalvik, fix permissions and then reboot.
Click to expand...
Click to collapse
Do you have any ROM you want to flash now? If yes, please tell me the name of the Rom so that i can provide you with my own flashing instruction
Swyped from my Galaxy SII
Jokesy said:
Do you have any ROM you want to flash now? If yes, please tell me the name of the Rom so that i can provide you with my own flashing instruction
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Yes, in my phone I have latest version of:
ParanoidAndroid 1.992,
Ressurection ROM V3.0.6
SlimBean Rom
(prefer ParanoidAndroid)
Robotr0n said:
Yes, in my phone I have latest version of:
ParanoidAndroid 1.992,
Ressurection ROM V3.0.6
SlimBean Rom
(prefer ParanoidAndroid)
Click to expand...
Click to collapse
Ok. I'm using paranoid too.
- boot to CWM recovery
- If you don't have a backup, please do it now
- wipe data/factory reset
- wipe dalvik cache
- flash paranoid ROM
- Reboot recovery (under Advanced)
- wipe data/factory reset
- format /system (under mount and storage)
- wipe dalvik cache
- flash ROM
- flash gapps (gapps 4.1)
- fix permissions
- reboot phone
All should be fine now.
Note: this is not a standard flashing method. I only tried as much as possible to remove possibility of another round of bootloops.
-
-
Swyped from my Galaxy SII
Jokesy said:
Ok. I'm using paranoid too.
- boot to CWM recovery
- If you don't have a backup, please do it now
- wipe data/factory reset
- wipe dalvik cache
- flash paranoid ROM
- Reboot recovery (under Advanced)
- wipe data/factory reset
- format /system (under mount and storage)
- wipe dalvik cache
- flash ROM
- flash gapps (gapps 4.1)
- fix permissions
- reboot phone
All should be fine now.
Note: this is not a standard flashing method. I only tried as much as possible to remove possibility of another round of bootloops.
-
-
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Thanks a lot but unfortunately, this did not help me. Stucked in bootloops again. :-/
if the above doesn't work try flashing stock from download mode - ODIN
Robotr0n said:
Can anyone help me please ?
If I try to flash any ROM (Tried to install paranoindandroid, Ressurection Rom, Slim Rom) I get stucked in endless bootloop. From time to time the phone boots ROM, but only thing that happens is that I see "Enter your PIN code" for like 1-2 secs and then phone restarts and bootloop continues. Fortunately, I have Nandroid backup of my previous ROM which is old like hell (It´s RebelAOKP 1.3 ROM) so I can download other ROMs from xda. I tried full wipe, flashing other kernels, flashing ROM several times, fixing permissions and I don´t know, everything what is in CWM.
I´m so frustrated, whole day I´m searching for solution but I can´t find anything helpfull so I hope that someone will help me. Please be good to me I´m little bit noob but flashed lot of ROMs and this happens to me for first time. I will appreciate every response.
THX for your help.
Click to expand...
Click to collapse
I don't know if this will help but yeah.
http://forum.xda-developers.com/showthread.php?t=1108499
Robotr0n said:
Thanks a lot but unfortunately, this did not help me. Stucked in bootloops again. :-/
Click to expand...
Click to collapse
Something must have gone wrong somewhere. This shouldn't happen, normally.
Restore your backup. Sorry about that.
Can you confirm if the MD5 sum of the zips corresponds with the ones provided by the Rom developers?
Swyped from my Galaxy SII
serialteg said:
if the above doesn't work try flashing stock from download mode - ODIN
Click to expand...
Click to collapse
Thanks. I´ll try that.
Lushstep said:
I don't know if this will help but yeah.
http://forum.xda-developers.com/showthread.php?t=1108499
Click to expand...
Click to collapse
Also thanks, I was afraid of this, everytime when I´m flashing via ODIN I have bad feelings.
Jokesy said:
Something must have gone wrong somewhere. This shouldn't happen, normally.
Restore your backup. Sorry about that.
Can you confirm if the MD5 sum of the zips corresponds with the ones provided by the Rom developers?
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Yes MD5 sums match and they are allright, I downloaded all of them today from official repositories. Also thanks for helping
I´m goind off to bed, long day full of flashing and bootlooping Thank you all guys. :good:
But guys, if I flash stock ROM via ODIN how this will help me ? I will be able to install newest ROMs properly ? It will remove my problem ? I´m so confused...
Robotr0n said:
But guys, if I flash stock ROM via ODIN how this will help me ? I will be able to install newest ROMs properly ? It will remove my problem ? I´m so confused...
Click to expand...
Click to collapse
Yeah. Going back to stock and starting afresh should solve this issue.
Download a 4.0.3 ICS firmware, to make things safer and faster
Swyped from my Galaxy SII
Jokesy said:
Yeah. Going back to stock and starting afresh should solve this issue.
Download a 4.0.3 ICS firmware, to make things safer and faster
Swyped from my Galaxy SII
Click to expand...
Click to collapse
OK, I´m going to try it now.
Robotr0n said:
OK, I´m going to try it now.
Click to expand...
Click to collapse
Perform a factory data reset in recovery before flashing via Odin
Swyped from my Galaxy SII
Jokesy said:
Perform a factory data reset in recovery before flashing via Odin
Swyped from my Galaxy SII
Click to expand...
Click to collapse
I flashed stock ROM XWLPE then CF Root, then i flashed ParaAndroid ROM and guess what ?
reboot
reboot
reboot
So then I formated everything: emmc, system, etc., again flashing stock rom, CF root (completely clear phone) flashed ROM again and its still bootlooping... I really dont know what to do.
Can you not provide a logcat?
Sent from my Galaxy S2 running JellyBean
Robotr0n said:
I flashed stock ROM XWLPE then CF Root, then i flashed ParaAndroid ROM and guess what ?
reboot
reboot
reboot
So then I formated everything: emmc, system, etc., again flashing stock rom, CF root (completely clear phone) flashed ROM again and its still bootlooping... I really dont know what to do.
Click to expand...
Click to collapse
i believe something is either wrong with the zip files you downloaded, or something else.
You shouldn't be facing all these
Swyped from my Galaxy SII
---------- Post added at 06:54 AM ---------- Previous post was at 06:27 AM ----------
Robotr0n said:
I flashed stock ROM XWLPE then CF Root, then i flashed ParaAndroid ROM and guess what ?
reboot
reboot
reboot
So then I formated everything: emmc, system, etc., again flashing stock rom, CF root (completely clear phone) flashed ROM again and its still bootlooping... I really dont know what to do.
Click to expand...
Click to collapse
Ok.
Any other time you face bootloops, Try this:
- flash Siyah kernel (4.x.x zip) via CWM recovery
-reboot phone
Swyped from my Galaxy SII
*boy*racer* said:
Can you not provide a logcat?
Sent from my Galaxy S2 running JellyBean
Click to expand...
Click to collapse
I don´t know how to get these logcats.
Jokesy said:
i believe something is either wrong with the zip files you downloaded, or something else.
You shouldn't be facing all these
Swyped from my Galaxy SII
---------- Post added at 06:54 AM ---------- Previous post was at 06:27 AM ----------
Ok.
Any other time you face bootloops, Try this:
- flash Siyah kernel (4.x.x zip) via CWM recovery
-reboot phone
Swyped from my Galaxy SII
Click to expand...
Click to collapse
You really think that all these files which I downloaded are damages ? Uhm I don´t know but I don´t think so.
I tried this with Siyah kernel once and nothing happend. But I´ll give it a try again.
EDIT:
OH, God. I tried different stock ROM and even the new stock ROM wont boot... after i restart mobile, I´m in factory mode :-/
How to do a logcat
Ok so this is what i do.
. Download attachment and extract anywhere
.Open up Platform-tools folder and hold Shift+right click on an empty space within the folder.
.Click on "Open command window here"
.In the command window, type "adb logcat"
.Plug in device & turn it on
.It should do a logcat
leave it for about 1 min then disconnect device. Right click the logcat and select mark then highlight all and right click again. go to pastebin.com or something like that then paste it and save and give us the link.
hope this helps

Cyanogenmod 7 Very Annoying Bootloop

So I bought my new galaxy s2 (i9100 int'l version) and i flashed a stock rom that matches my carrier and country (israel) and then i rooted it
by using CF-Root kernel, now i have it for over a month and i flashed many roms with success and then when i tried to flash cm 7 from stock i got into an endless bootloop.
now if you need to know how i flashed it so here you go:
flash stock rom (2.3.5) with ODIN
flash CF-Root kernel that matches my rom (KJ1)
move the official cm 7 (cm-7.2.0-galaxys2.zip) install file onto my internal memory
reboot into cwm recovery with 3 button combo
wipe data/factory reset
wipe cache partition
wipe delvik cache
install zip from internal SD TWICE just to be sure
and then when i reboot with the "reboot device" option i get stuck on the galaxy sii screen
note: after i flashed the zip twice i also tried to reboot straight into cwm from the advanced tab and it still got stuck in the bootloop.
also when im in the bootloop i cant get into cwm with 3 button combo but i can get into download mode and i have been reading that when a thing like this happens it means its a NAND rw corruption
so does it mean i can never acomplish successfull installation of cm 7 on my device?
If you would have corrupted nand rw, you couldn't flash stock firmware with success.
Why don't you try CM9/10?
LSGio said:
So I bought my new galaxy s2 (i9100 int'l version) and i flashed a stock rom that matches my carrier and country (israel) and then i rooted it
by using CF-Root kernel, now i have it for over a month and i flashed many roms with success and then when i tried to flash cm 7 from stock i got into an endless bootloop.
now if you need to know how i flashed it so here you go:
flash stock rom (2.3.5) with ODIN
flash CF-Root kernel that matches my rom (KJ1)
move the official cm 7 (cm-7.2.0-galaxys2.zip) install file onto my internal memory
reboot into cwm recovery with 3 button combo
wipe data/factory reset
wipe cache partition
wipe delvik cache
install zip from internal SD TWICE just to be sure
and then when i reboot with the "reboot device" option i get stuck on the galaxy sii screen
note: after i flashed the zip twice i also tried to reboot straight into cwm from the advanced tab and it still got stuck in the bootloop.
also when im in the bootloop i cant get into cwm with 3 button combo but i can get into download mode and i have been reading that when a thing like this happens it means its a NAND rw corruption
so does it mean i can never acomplish successfull installation of cm 7 on my device?
Click to expand...
Click to collapse
hey ma8, try wiping data/factory reset after installing CM7 not before, then reboot phone and see
przemcio510 said:
If you would have corrupted nand rw, you couldn't flash stock firmware with success.
Why don't you try CM9/10?
Click to expand...
Click to collapse
i tried cm9 and 10 but i just mis the old day you know!
cause i haad sgs1 and i flashed any rom with no problam but i dont wanna go back to my sgs1 i just want to have cm7 on my sgs2.
Sun90 said:
hey ma8, try wiping data/factory reset after installing CM7 not before, then reboot phone and see
Click to expand...
Click to collapse
i tried to wipe after and it didn't work but i appriciate the advice
przemcio510 said:
If you would have corrupted nand rw, you couldn't flash stock firmware with success.
Why don't you try CM9/10?
Click to expand...
Click to collapse
can the problem be envolved with that fact that im flashing the rom from the internal sd card?
cause i saw some videos that people were installing cm 7 onto thier devices from the external sd and it worked for them.
LSGio said:
So I bought my new galaxy s2 (i9100 int'l version) and i flashed a stock rom that matches my carrier and country (israel) and then i rooted it
by using CF-Root kernel, now i have it for over a month and i flashed many roms with success and then when i tried to flash cm 7 from stock i got into an endless bootloop.
now if you need to know how i flashed it so here you go:
flash stock rom (2.3.5) with ODIN
flash CF-Root kernel that matches my rom (KJ1)
move the official cm 7 (cm-7.2.0-galaxys2.zip) install file onto my internal memory
reboot into cwm recovery with 3 button combo
wipe data/factory reset
wipe cache partition
wipe delvik cache
install zip from internal SD TWICE just to be sure
and then when i reboot with the "reboot device" option i get stuck on the galaxy sii screen
note: after i flashed the zip twice i also tried to reboot straight into cwm from the advanced tab and it still got stuck in the bootloop.
also when im in the bootloop i cant get into cwm with 3 button combo but i can get into download mode and i have been reading that when a thing like this happens it means its a NAND rw corruption
so does it mean i can never acomplish successfull installation of cm 7 on my device?
Click to expand...
Click to collapse
Are you sure you have I9100 or do you have I9100G? Try flashing CM9 or CM10 and report if you face similar issues.
atulalvenkar said:
Are you sure you have I9100 or do you have I9100G? Try flashing CM9 or CM10 and report if you face similar issues.
Click to expand...
Click to collapse
i flashed cm9 and 10 with no problem and i know for sure i have i9100 cause all the roms i flash are for i9100 and i flash them successfully.

[SOLVED]SGS2 issues upgrading to Jelly Bean

Hello, I hope this is the right group.
I have spent the last 2 days trying to get JB working on my SGS2. I previously had ICS Hydra h2o 1.4.1 ROM on my device.
The troubles started when I tried booting into CWM recovery. The phone wouldn't go past the yellow triangle so I had to use ODIN to flash stock Samsung ICS ROM on the phone to get it working again. I have since tried multiple JB ROMs with different kernels but most of them get past the yellow triangle but then stop on logos varying between kernels. I am also unable to boot into CWM recovery and must flash a CF-Root kernel using ODIN to get into recovery.
It is strange that this happens only with JB ROMs and I have no trouble installing Hydra h2o again through recovery.
I always use the same method of installing ROMs through CWM:
- wipe data/factory reset
- wipe cache
- wipe dalvik
- install .zip from sdcard
I have also tried fixing permissions before and after flashing ROMs, nothing seems to get me into the OS.
One ROM, Vanilla RootBox, I have found to sometimes boot all the way into the OS but the system frequently freezes and is unstable. Looks amazing tho.
Do you have any ideas on how I could get JB ROMs working with my SGS2? Is there anything I am missing?
SynGates said:
Hello, I hope this is the right group.
I have spent the last 2 days trying to get JB working on my SGS2. I previously had ICS Hydra h2o 1.4.1 ROM on my device.
The troubles started when I tried booting into CWM recovery. The phone wouldn't go past the yellow triangle so I had to use ODIN to flash stock Samsung ICS ROM on the phone to get it working again. I have since tried multiple JB ROMs with different kernels but most of them get past the yellow triangle but then stop on logos varying between kernels. I am also unable to boot into CWM recovery and must flash a CF-Root kernel using ODIN to get into recovery.
It is strange that this happens only with JB ROMs and I have no trouble installing Hydra h2o again through recovery.
I always use the same method of installing ROMs through CWM:
- wipe data/factory reset
- wipe cache
- wipe dalvik
- install .zip from sdcard
I have also tried fixing permissions before and after flashing ROMs, nothing seems to get me into the OS.
One ROM, Vanilla RootBox, I have found to sometimes boot all the way into the OS but the system frequently freezes and is unstable. Looks amazing tho.
Do you have any ideas on how I could get JB ROMs working with my SGS2? Is there anything I am missing?
Click to expand...
Click to collapse
Follow this:
-boot to CWM recovery
-wipe data /factory reset
-wipe dalvik cache (under advanced)
-format /system (under mount and storage)
-flash ROM
-flash Gapps (for jelly bean)
-fix permissions
-reboot phone
Done
Swyped from my Samsung Galaxy SII
Thank you for the reply, but that method does not seem to work either.
One thing I have noticed though is when I select wipe data/factory reset it reports an error formatting /sdcard/.android_secure.
Is this something that could be causing my problems?
SynGates said:
Thank you for the reply, but that method does not seem to work either.
One thing I have noticed though is when I select wipe data/factory reset it reports an error formatting /sdcard/.android_secure.
Is this something that could be causing my problems?
Click to expand...
Click to collapse
Nope
Swyped from my Samsung Galaxy SII
SynGates said:
Thank you for the reply, but that method does not seem to work either.
One thing I have noticed though is when I select wipe data/factory reset it reports an error formatting /sdcard/.android_secure.
Is this something that could be causing my problems?
Click to expand...
Click to collapse
which kernel u were into while flashing the JB rom?
Use siyah or dorimanx kernel it works fine for me must be your kernel
Sun90 said:
which kernel u were into while flashing the JB rom?
Click to expand...
Click to collapse
When I'm flashing I'm using XLPB kernel with CF-root. That's the kernel I flash to get into CWM when the ROMs misbehave.
SynGates said:
When I'm flashing I'm using XLPB kernel with CF-root. That's the kernel I flash to get into CWM when the ROMs misbehave.
Click to expand...
Click to collapse
try this.
after flashing Cf-root kernel from ODIN.
1) flash the .zip file of siyah kernel v3.5.2 for S2, dwnld the same Here.
2)after that reboot into siyah kernel recovery.
3) wipe data/factory reset, then wipe cache and dalvik.
4) flash the JB rom zip file(Vanilla root box).
5)reboot ur phone and see.
ps- before doing wipes and rom flash do please backup ur exsisting rom once ur into siyah kernel recovery first
Sun90 said:
try this.
after flashing Cf-root kernel from ODIN.
1) flash the .zip file of siyah kernel v3.5.2 for S2, dwnld the same Here.
2)after that reboot into siyah kernel recovery.
3) wipe data/factory reset, then wipe cache and dalvik.
4) flash the JB rom zip file(Vanilla root box).
5)reboot ur phone and see.
ps- before doing wipes and rom flash do please backup ur exsisting rom once ur into siyah kernel recovery first
Click to expand...
Click to collapse
Gives me Kernel panic or stops at the triangle loading screen. Seems the only way to get into CWM is through CF-root.
SynGates said:
Gives me Kernel panic or stops at the triangle loading screen. Seems the only way to get into CWM is through CF-root.
Click to expand...
Click to collapse
Use a newer version of siyah or dorimanx, they should work fine
Sent from my GT-I9100 using xda app-developers app
I have tried three versions of syiah, including 4.1.4 but I will try dorimanx and report with the results.
edit: dorimax kernel is the same.
One thing I noticed tough is whenever I wipe dalvik cache the system reports "unknown volume for /ext-sd blablabla" - maybe this is connected to my problem?
I am at a complete stop...
No JB kernels seem to work whatsoever. Is there any wit to flash the bootloader? Or is that even possible?
I really would like to get JB working on my device.
There must be something about the previous state of my phone, some files or folders that are in the way or are missing or somewhat. Is there any way to completely reset the phone? Not just factory resetting it since that is not working.
edit: Progress! These are my steps:
- Downloaded fresh stock Samsung ROM and another version of CF-root.
- Flashed stock ROM and then CF-root kernel.
- Booted into recovery and did the whole wipe.
- Flashed .zip twice (don't know if that did the trick or what)
- Wipe dalvik cache and fix permissions.
After that the phone booted normally and I'm now running ResurrectionRemix with Android 4.1.1, hoping it wil be awesome as ****.

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