How to flash Cognition S2 v1.01 ROM - Galaxy S II Q&A, Help & Troubleshooting

Hello guys
How can i install Cognition S2 v1.01 ROM?
Is it possible to install it via Odin ?
I downloaded it and try to flash via Odin but I cant find any PDA file ???

Flashable via ClockworkMod Recovery
Click to expand...
Click to collapse
Download Rom manager and flash CWM recovery, assuming you already have root.

Related

[Q] how do I get rid of custom cwm?

Hi, I recently flashed cf-root after buying my gs2. I installed rom manager and flahed cwm 4.0.0.2 from there. However now when I reboot into recovery I get the custom cwm that comes with cfroot 4. If I pull the battery in the custom cwm when I put the battery back in I get cwm 4.0.0.2.
Does anyone know how I can remove the custom cwm or both and then flash cwm 4.0.0.2?
Thanks in advance.
Can nobody help with this?
Yes, in the menu move to reboot using volume keys and hit home
Failing that, odin a stock rom to recover
pulser_g2 said:
Yes, in the menu move to reboot using volume keys and hit home
Failing that, odin a stock rom to recover
Click to expand...
Click to collapse
I flashed my stock kernel but restarting into recovery from rom manager still goes to the custom cwm.
In the original Galaxy S, Samsung bundle the kernel & the recovery in the zImage file in the stock firmware so that might be the case here too. Download the original from samfirmware.com, remove everything from the tar file except zImage and flash the tar as PDA through Odin
Can you not just fake-flash the CWM 4.0.0.2 recovery through the custom CWM (through an update.zip or whatever) as that is what ROM Manager does anyway
viva.fidel said:
In the original Galaxy S, Samsung bundle the kernel & the recovery in the zImage file in the stock firmware so that might be the case here too. Download the original from samfirmware.com, remove everything from the tar file except zImage and flash the tar as PDA through Odin
Can you not just fake-flash the CWM 4.0.0.2 recovery through the custom CWM (through an update.zip or whatever) as that is what ROM Manager does anyway
Click to expand...
Click to collapse
I tried flashing the zip from the custom cwm but it says unable to verify whole-file signature.
I odin'd Lightening rom 1.4 and now it seems im just left with the real CWM. yey!
Thanks for all your help.

Just Clockworkmod?

I have a i9100. Is there a Odin flashable of CWM by itself? I want to have a standard version of CWM to always be able to flash back to.
hodiedodie said:
I have a i9100. Is there a Odin flashable of CWM by itself? I want to have a standard version of CWM to always be able to flash back to.
Click to expand...
Click to collapse
its called cf root, you can download it from chainfire's thread in our original development section. Find the matching cf root of your rom version and flash it via odin
bala_gamer said:
its called cf root, you can download it from chainfire's thread in our original development section. Find the matching cf root of your rom version and flash it via odin
Click to expand...
Click to collapse
Thanks. But I was actually meaning just the recovery without the changes to the actual ROM. I have settled for using Odin to flash the Siyah Kernel to get that custom recovery without making detrimental changes to the ROM.
hodiedodie said:
Thanks. But I was actually meaning just the recovery without the changes to the actual ROM. I have settled for using Odin to flash the Siyah Kernel to get that custom recovery without making detrimental changes to the ROM.
Click to expand...
Click to collapse
SGS2 doesn't have a separate recovery partition so it's not possible to install CWM without changing kernels, CF Root is the stock kernel with su and busybox installed, that's the closest you can get to no changes.
ok you have to do all this for that....
1: flash ROM you want
2: root using clockwork mod
3: flash back your ROM's stock kernel
4: install mobile Odin
5: flash the attached kernel [zimage] using mobile Odin [extract the zimage file from tar]
now you have a working stock ROM with clockwork mod

Custom Recovery

Hi, I have a Galaxy S2 with stock ROM 4.0.3 and stock Recovery. I wanted to know if there is a way of flashing Custom Rom without rooting the phone or ADB. Would this method work? http://forum.xda-developers.com/showthread.php?t=1501719 I would just proceed till the step "Choose CWM.zip and wait until CWM recovery appear." Would this work? i need custom recovery so i can flash a custom ROM.
Thanks again
No you cant flash a Custom ROM from stock recovery, you need a custom recovery and root access on your phone for flashing custom roms
the method you linked is only for rooting, the recovery appearing is only a temporory one from which you can only install SU-Busybox-Installer.zip.
masantula said:
Hi, I have a Galaxy S2 with stock ROM 4.0.3 and stock Recovery. I wanted to know if there is a way of flashing Custom Rom without rooting the phone or ADB. Would this method work? http://forum.xda-developers.com/showthread.php?t=1501719 I would just proceed till the step "Choose CWM.zip and wait until CWM recovery appear." Would this work? i need custom recovery so i can flash a custom ROM.
Thanks again
Click to expand...
Click to collapse
hey u have 2 root ur phone 2 install custom rom's and that method in the link is ok
after that u downld latest CWM recovery.zip by searching the same on the thread and install 2 get the CWM in ur app drawer
masantula said:
Hi, I have a Galaxy S2 with stock ROM 4.0.3 and stock Recovery. I wanted to know if there is a way of flashing Custom Rom without rooting the phone or ADB. Would this method work? http://forum.xda-developers.com/showthread.php?t=1501719 I would just proceed till the step "Choose CWM.zip and wait until CWM recovery appear." Would this work? i need custom recovery so i can flash a custom ROM.
Thanks again
Click to expand...
Click to collapse
I didn't test it myself, but I think that it will work.
If the custom ROM is provided as Odin-flashable tar file, you don't need a CWM recovery to flash it. Just put the ROm tar file into PDA section of Odin and flash it to your phone.
Only if the custom ROM is available as CWM-flashable zip file, you need to flash a kernel containing CWM recovery first.
I prefer to flash CF-Root kernel from Chainfire with Odin. It contains CWM Manager app and CWM recovery of cause.
When you are in doubt, stick to the flashing instructions of the ROM developer - usually in the corresponding ROM thread.
P.S.:
As soon as you have CWM recovery, create a nandroid/system backup.
So you will be able to go back to your current system, if something goes wrong with the new ROM.
Good luck !
Oh cool, lemme try it
masantula said:
Hi, I have a Galaxy S2 with stock ROM 4.0.3 and stock Recovery. I wanted to know if there is a way of flashing Custom Rom without rooting the phone or ADB. Would this method work? http://forum.xda-developers.com/showthread.php?t=1501719 I would just proceed till the step "Choose CWM.zip and wait until CWM recovery appear." Would this work? i need custom recovery so i can flash a custom ROM.
Thanks again
Click to expand...
Click to collapse
All you need to do is download cwm recovery from here http://clockworkmod.com/rommanager in your SD card and flash the Dowloaded zip from stock recovery .
Once you flash, your stock recovery will be converted to cwm recovery
After that flash any custom rom of your choice. Simple and short
Sent from my GT-I9100 using xda premium
ZACQ8 said:
No you cant flash a Custom ROM from stock recovery, you need a custom recovery and root access on your phone for flashing custom roms
the method you linked is only for rooting, the recovery appearing is only a temporory one from which you can only install SU-Busybox-Installer.zip.
Click to expand...
Click to collapse
No you can flash any ROM you want, just like any other cwm.
I have used it multiple times, but the Queston is can you do it the first time, before you choose that busy box installer.
Edit: yes you can flash any rom just fine
Pressed quote twice..
safepacket said:
All you need to do is download cwm recovery from here http://clockworkmod.com/rommanager in your SD card and flash the Dowloaded zip from stock recovery .
Once you flash, your stock recovery will be converted to cwm recovery
After that flash any custom rom of your choice. Simple and short
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Oh okay, so if i flash the ZIP file my Stock recovery will change to CWM recovery, sweet..thats simple caz i just wanted custom recovery so i can flash custom rom....Thanks again Will follow your method..
ZACQ8 said:
No you cant flash a Custom ROM from stock recovery, you need a custom recovery and root access on your phone for flashing custom roms
the method you linked is only for rooting, the recovery appearing is only a temporory one from which you can only install SU-Busybox-Installer.zip.
Click to expand...
Click to collapse
Thanks for that info, i thought this would work...gracias..
masantula said:
Oh okay, so if i flash the ZIP file my Stock recovery will change to CWM recovery, sweet..thats simple caz i just wanted custom recovery so i can flash custom rom....Thanks again Will follow your method..
Thanks for that info, i thought this would work...gracias..
Click to expand...
Click to collapse
2 different statements quoted above ....
please let me know if you flashed a custom rom successfully without rooting (flashing busybox installer zip) the phone.
goodluck...
ZACQ8 said:
2 different statements quoted above ....
please let me know if you flashed a custom rom successfully without rooting (flashing busybox installer zip) the phone.
goodluck...
Click to expand...
Click to collapse
I'm not following the step i had asked about, i am going to follow the steps that safepacket told me about. seems simple and direct..
masantula said:
I'm not following the step i had asked about, i am going to follow the steps that safepacket told me about. seems simple and direct..
Click to expand...
Click to collapse
exactly that is the step you asked about, will not work.....
I can confirm it works.....
Flashed new dx9 after full wipe.
From recovery choose the cwm zip
From that touch cwm flashed aosp rom.
So it works just fine.
atifsh said:
I can confirm it works.....
Flashed new dx9 after full wipe.
From recovery choose the cwm zip
From that touch cwm flashed aosp rom.
So it works just fine.
Click to expand...
Click to collapse
Oh cool, that's good to know, gracias...now i have plan B if the first doesn't work for me. Gracias

CWM for GALAXY STAR...

I recently flashed Pre-rooted firmware on my galaxy star.
Now i want cwm recovery on this device.
So does anyone know how to install cwm recovery on this mobile?
Arghyadeep said:
I recently flashed Pre-rooted firmware on my galaxy star.
Now i want cwm recovery on this device.
So does anyone know how to install cwm recovery on this mobile?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2431444
1. Turn off your Mobile And Enter in Odin download Mode[Vol(Down)+home+power] Then Vol[UP]
2. On Odin click Pda and Choose The MD5 file and then click start.

Rooting withot using USB possible?

Hi guys,
isit possible to root the S2 from Stock without using a PC connection via USB? Because it won't be recognized. Drivers etc are correctly installed. It seems to be broken...
thx in advance
cheers
Use Framaroot apk. You'll find on XDA in Community Apps section
Giev thx pl0x c:
Sent from my GT-P3100 using XDA Free mobile app
thank you! :good: Now is the question how can i install CWM to finally flash custom roms?
Just search the latest cwm recovery and put it on the root of your (Internal) SD card. Then flash it via recovery, worked for me
Samuel Sung said:
thank you! :good: Now is the question how can i install CWM to finally flash custom roms?
Click to expand...
Click to collapse
Here, flash the latest version in ODIN (download the .tar.md5 file of latest version) and select it under PDA in ODIN. Flash it then BOOM! (No explosion intended, but you get what I mean) Your phone should have custom recovery.
Link: https://goo.im/devs/philz_touch/CWM_Advanced_Edition/i9100/
Thanks, but i can not install CWM via Standard recovery because the paket signature is not signed. So i guess Samsung prevented it...
@gsstudios Flashing via Odin is obviously not possible for me...But thank you.
Is there a solution how to install a unsigned paket through standard recovery?
You need PhilZ recovery, see this post and following :
http://forum.xda-developers.com/showpost.php?p=60896694&postcount=6124
Orionbell37 said:
You need PhilZ recovery, see this post and following :
http://forum.xda-developers.com/showpost.php?p=60896694&postcount=6124
Click to expand...
Click to collapse
Thank you! So i flash Philz and after that i can directly flash CWM over it? Because i need CWM or TWRP for my ROM
That's correct. Flash PhilZ first, then the specific recovery for your new Rom (search for the zip file, not the tar file).
Thanks mate, worked like a charm.

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