[Q] Trying to install cyanogenmod 7 on SGS2 - Galaxy S II Q&A, Help & Troubleshooting

Hey everyone,
First of all, i apologize if any of what i'm asking here is stuff that has been covered before. I have been searching myself for answers for the last several days and have found plenty of good info, but i am new to android and i think i need to ask some question to help get a base level understanding of what i need to do. I am a bit nervous about bricking my phone so i maybe haven't been as adventurous trying to get everything running as god intended.
Firstly, i have used and understand Odin, using it to flash roms and such. I have rooted the phone and installed ROM Manager and clockworkmod 4.0.1.5 on the phone, but when i boot into recovery mode, it is still on the android recovery 3e and i cannot do the update.zip, I get signature verification failed. Now i KNOW this is cause of the android recovery 3e, and i have found this issue has been encountered plenty before, but my confusion is in some of the solutions i have found. Mainly the terminology and how the steps directly apply to the phone. For example, I found on another forum thread :
1- Copy the Zimage from your rooted kernel and paste it to SD card of your phone.
2- Flash the Stock kernel via Odin to get rid of Yellow triangle.
3- Flash the Zip file (Zimage) via CWM which you've already pasted in Step 1.
i don't really understand what the zimage is. Why do i need it, what IS it frankly? Where do i get it or a stock kernel for my phone. Does versioning matter much? i read that for the most part the kernels are almost identical to each other, and the fact all i really need is for the android recovery mode to be 2e or whatever it is (so it will not do the signature check on the update.zip file), that i don't really need to pay much attention to the actual kernel version.
What i really need i guess is for someone to break it down for me and either explain the steps or give me a detailed step by step on how to get clockworkmod recovery working so i can proceed with the cyanogen mod running on phone (not enjoying touchwiz at all).
Again, sorry if i am giving anyone spasms at my noobish-ness, but i have been searching for my answers for a day or two now and i haven't been able to find anything that really tells me what i need to know.
Phone : GT-I9100M
Android : 2.3.3
Kernal : 2.6.35.7-I9100XWKDD-CL
Build : GINGERBREAD.UGKG2
Thanks

riccochet said:
Hey everyone,
clockworkmod 4.0.1.5 on the phone, but when i boot into recovery mode, it is still on the android recovery 3e
That means you have not installed it flash CWM and \Root from here .
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
Beware of following instructions from a separate rom to the one you are flashing .
1- Copy the Zimage from your rooted kernel and paste it to SD card of your phone.
2- Flash the Stock kernel via Odin to get rid of Yellow triangle.
3- Flash the Zip file (Zimage) via CWM which you've already pasted in Step 1.
i don't really understand what the zimage is.
ZImage is the kernel .
Why do i need it, what IS it frankly? Where do i get it or a stock kernel for my phone. Does versioning matter much? i read that for the most part the kernels are almost identical to each other, and the fact all i really need is for the android recovery mode to be 2e or whatever it is (so it will not do the signature check on the update.zip file), that i don't really need to pay much attention to the actual kernel version.
You are confusing yourself .
Flash correct CWM from above link .
Choose the custom rom and follow the instructions posted for that rom .
CyanogenMod as the man says
Warning : Not for new users, flash this build only if you know what you are doing !!!
#Followed by his install instructions ~~~
jje
Click to expand...
Click to collapse

Thanks for the reply. I have been doing more reading and i think i am understanding the rooting process a bit better.
I looked at the link you posted (thanks for that, i saw the forum post for the i9000 but i never could find the i9100 post for some reason) and i DO have another question after reading through a good chunk of the posts on it.
There is no CF Root for my kernel, but the reply that was made to someone else with my kernel version was :
"Flash the Stock 2.3.4 ROM (XXKG5, XXKG6 or XXKG7) and root with CF-Root-XXKG6."
I understand that process and how it works but i thought you were only supposed to flash roms based on your firmware version? My KDD kernel version is running on 2.3.3
Will this cause any issues if i flash the stock 2.3.4 ROM?

Download cm7 zip for the newest nightly.
Copy it to internal sd card.
Flash any cf root kernel
Boot into recovery
Wipe data and cache, you will lose all your data on your phone, so backup sms (I recommend sms backup +), also you will lose App data so you might want to back that up first using something like titanium backup.
Wipe dalvik cache (under advanced)
Chose install zip from sd card
Select the cm7 zip
Reboot
If you get stuck at the boot screen go back into recovery and flash the zip again
Sent from my GT-I9100 using XDA Premium App

Thanks Veyka.
I think i'm ok with the CM7 install process. I am probably going to wait until i really feel like i understand the whole process from front to back before i start messing with that though.
I can't get to that point yet however since i haven't been able to get CWM recovery working yet. I have the Android Recovery 3e, which will not install from zip files that aren't digitally signed.
So i'm trying to get CF Root installed and working, however, as mentioned in my previous post there is no CF Root for my kernel. I would like it clarified if it is ok for me to flash to a 2.3.4 stock ROM (i'm running 2.3.3) and then use a CF root for a the new ROM.
I was under the impression that this was not a good idea.
If i should not be doing this, is there a recommended way to upgrade my firmware to 2.3.4 so i can use a newer CF Root?
Thanks

Pick a new stock rom, I would go for kg6, flash it via odin.
Then flash the kg6 CF root kernel via odin and you will have cwm recovery.
Don't put the pit into odin and don't tick repartition or update bootloader.
There is a good thread with all the info you need on flashing stock roms with odin and a list of all avaliable roms.
Sent from my GT-I9100 using XDA Premium App

Thanks for all the help. I was able to make sense of the process (which is actually quite simple, just needed to put it all together in my head to make sense) and get everything done.
Appreciate all the help!

veyka said:
Download cm7 zip for the newest nightly.
Copy it to internal sd card.
Flash any cf root kernel
Boot into recovery
Wipe data and cache, you will lose all your data on your phone, so backup sms (I recommend sms backup +), also you will lose App data so you might want to back that up first using something like titanium backup.
Wipe dalvik cache (under advanced)
Chose install zip from sd card
Select the cm7 zip
Reboot
If you get stuck at the boot screen go back into recovery and flash the zip again
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
Hi,
I have rooted my phone using the quick root guide found here and therefore I have my stock kernel back w/ root. Do I need to install a cf root kernel?
Also, when the new ROM gets flashed how does one recover the apps and data lost?

NABNAP said:
Hi,
I have rooted my phone using the quick root guide found here and therefore I have my stock kernel back w/ root. Do I need to install a cf root kernel?
Also, when the new ROM gets flashed how does one recover the apps and data lost?
Click to expand...
Click to collapse
Use Titanium Backup PRO for your app. You can backup all of them then restore on any rom.

Is there anything that Titanium Backup doesn't back up for which I need to use another application?
Thanks.

NABNAP said:
Is there anything that Titanium Backup doesn't back up for which I need to use another application?
Thanks.
Click to expand...
Click to collapse
sms.. use another app to backup your sms.. for example sms backup as mentioned before..

Related

[Q] rooted device can't install new ROM

Hello everybody,
First I'd like to thank to community for the hard work. I v read a countless amount of pages of this forum and I can't even imagine the time people spent helping on issues or writing tutorials.
So thank you if you re up to spend few minutes on my specific case (and sorry for the bad english).
Here is my device and the different version of kernel ...
1/ Rooting my device (tutorial in french translated from xda)
http://www.cnetfrance.fr/produits/guide-rooter-son-galaxy-s2-39763841.htm
S-Root version used: http://forum.xda-developers.com/showthread.php?t=1125414
Everything went pretty well when I rooted the GS2. I got the Superuser app so i figure it's ok.
I just used a modified kernel found on xda who was corresponding the my base band version (just the PDA in Odin).
2/ Installing a new ROM (Cyanogenmod by Rom Manager)
I followed : http://www.redmondpie.com/install-cm7-on-galaxy-s2-using-rom-manager-how-to-tutorial/ and http://wiki.cyanogenmod.com/wiki/Samsung_Galaxy_S_II:_Full_Update_Guide (official guide) using Rom Manager premium.
When i tried to reboot in Recovery (manually or with Rom Manager), i can't find the "Install the zip" option, I have 4 available: "Update from the zip", the 2 wiping/delete options and the reboot.
So obviously if i try to wipe files, wipe the cache then to update with the zip I have the following Error:
E: failed to verify whole-file signature
Do you have any idea what went wrong in the process ?
Should i flash the phone withOdin and change my base band version to another one ?
For info, I did the Permission Fix option in Rom Manager too. Didnt help.
Thanks a lot.
U need clockworkmod instaled first..
Sent from my GT-S5570 using xda premium
sgt_ray said:
Do you have any idea what went wrong in the process ?
Click to expand...
Click to collapse
You didn't install ClockworkMod Recovery.
Thanks for theses answers but I think I installed it with Rom Manager and i flashed it to the last version.
(joined file 1 : cwm rom manager.jpg)
When i reboot in recovery mode here is the only options available (and it's the problem i pointed out) :
(joined file 2 : 20111125_13221022.jpg)
Maybe a problem with my SD card ?
sgt_ray said:
but I think I installed it with Rom Manager and i flashed it to the last version.
Click to expand...
Click to collapse
As we've already said, you haven't installed CWM Recovery. You see at the top of your second photo where it says "Android system recovery (3e)"? That's stock recovery.
you can't install CWM recovery thru ROM manager.
just flash the CF Root Kernel for KI4 thru ODIN , you will have CWM recovery.
Hmm I understand about the CWM version I'm booting with, but as you can see on the first capture, my kernel version is a modified one i got after using Odin (puting this Kernel : GT-I9100_XXKI4_insecure.tar from http://forum.xda-developers.com/showthread.php?t=1101671).
I got the root access by S2 Root.
Ok I think I installed only the Kernel and not CF Root available here : http://forum.xda-developers.com/showthread.php?t=1103399
I ll try to redo Odin and stuff and let you know if I'm still alive.
So it's not great right now. I have installed CF Root with Odin, so I had CWM on my phone (I could see the application). Then after reboot with CWM Recovery and installing Cyanogenmod, the phone doesnt want to start anymore.....
I tried to apply the insecure kernel again with Odin but still impossible to download. I'm stuck on the screen with the yellow sign and written Galaxy S2.
HALP !!
I just tried to put back the official firware version : http://forum.xda-developers.com/showthread.php?t=1075278 and put it in my phone with Odin.
Ok, I dont have the yellow sign anywore but the phone is still stuck on the boot screen (where it's written Samsung GALAXY s II)...
What should I try ?
I'm still able to boot with CWM recovery but I didn't make any backup and nothing work.
Do you think the phone is dead ?
5 posts in a row?
So, just to clarify, you've tried to install CM7, which amongst other things tells you to do a nandroid backup, and also to flash twice in succession. Did you do either of these things? The instructions are there to be followed, don't just ignore them.
Ok my bad I didn't backup anything because I had no data to backup. This was maybe a bad move...
Anyway, I tried to flash it twice yes. Right now, i'm working with a modified Kernel (with CF Root), and booting in CWM Recovery. When I want to flash again by installing from the .zip I get a Satus 7 Error.
In CWM, every advanced options are apparently available but I dont know anything about them.
And just so you know, on my SD Card i have 1 update.zip and the update-cm-7.1.0-Galaxys2.... .zip from Cyanogen.
sgt_ray said:
Ok my bad I didn't backup anything because I had no data to backup. This was maybe a bad move...
Anyway, I tried to flash it twice yes. Right now, i'm working with a modified Kernel (with CF Root), and booting in CWM Recovery. When I want to flash again by installing from the .zip I get a Satus 7 Error.
In CWM, every advanced options are apparently available but I dont know anything about them.
And just so you know, on my SD Card i have 1 update.zip and the update-cm-7.1.0-Galaxys2.... .zip from Cyanogen.
Click to expand...
Click to collapse
Flash a stock rom with Odin and then root your phone again. Start reading and follow procedures when you want to flash custom roms again .See Intratechs`s thread for a stock rom
Thanks for your reply.
I did it, it didn't work, I mean i could flash with Odin but the reboot doesn't work : the start screen appeared without the yellow sign, but it's stuck on it.
--- update
FYI, I installed Rom Manager yesterday, it way interact in a bad way with CWM Recovery.
For now i can mount USB by CWM Recovery but cannot do anything else.
If you have a method to clean completely the phone ? Maybe the bootloader is broken...
sgt_ray said:
I just tried to put back the official firware version : http://forum.xda-developers.com/showthread.php?t=1075278 and put it in my phone with Odin.
Ok, I dont have the yellow sign anywore but the phone is still stuck on the boot screen (where it's written Samsung GALAXY s II)...
What should I try ?
I'm still able to boot with CWM recovery but I didn't make any backup and nothing work.
Click to expand...
Click to collapse
Wipe data and cache after flashing..
Sent from my GT-S5570 using xda premium
I did it. 20 times .
Maybe I should re partition my SD card...
--- update ---
I re partitionned my SD Card with Odin and tried to install a new stock ROM. Everything pass with Odin but to finalize the set up (while reboot), I got some errors and still the same problem during the boot. It's stuck !
I installed a insecure Kernel so I can access CWM Recovery but still stuck and now I can't mount anything .
Sorry to post again...
Finally I ordered a USB jig in case of...
I found this solution : http://forum.xda-developers.com/showpost.php?p=16902269&postcount=8
May try it this we.
sgt_ray said:
Sorry to post again...
Finally I ordered a USB jig in case of...
I found this solution : http://forum.xda-developers.com/showpost.php?p=16902269&postcount=8
May try it this we.
Click to expand...
Click to collapse
Good luck...
Sent from my GT-S5570 using xda premium

[Q]Can you flash over a flash

Hi All
Please let me explain in detail:
1. I had original ICS and flashed CF-Root with ODIN
2. Flashed new JB-Polland with ODIN
3. Lost root access and CF apps
4. Re-flashed CF-Root, CF apps and root access granted
5. Opening CWM i get the following msg: "This version of CWM should be used with CF-CWM v1.1" Now from reading other posts, i think this error is due to CF-Root not supporting JB.
Therefore what are my options?
1. Can I flash a new root over CF-Root, that supports JB.
2. Do I do the triangle away and try to clear CF-Root
3. Any other suggestions?
Thanks in advance guys.
Whenever I'm flashing a ROM, I flash over the previous one.
I installed CF-Root, flashed MIUI, didn't like it so flashed CM10, didn't like it so flashed to stock again then reset my flash count to 0.
Or use it as is. Everyone who uses CF-Root with JB gets that message. You can still perform backups, updates and ZIP installs through CWM recovery.
Thanks Sleepycat, I didn't realise you could keep using it. Part of the message says some features have been disabled.
Running backup in recovery mode now and seems to be going sweet.
Thanks Guys
its just the app that's incompatible, not CWM itself.
Sent from my GT-I9300 using Tapatalk 2
Depending on what you are flashing, what is on the phone will be "overwritten". For example if you flash a kernel you will replace just the kernel, if you are flashing a full rom, everything that the rom contains will overwrite its equivalent in the phone (which is why you needed to reflash the root).
If you want to ensure you can get back to original state you needed to have done a nandroid backup at the beginning from which to restore later.
Hope this helps
Sent from my GT-I9300 using xda app-developers app

Need help with rooting my i9100

Guys I need help with rooting and installing CWM recovery on my phone so i can install custom roms. Im running on stock 4.03 ZSLPE...What is the safest way for me without bricking my phone. Because 1 of my friends super bricked his phone after trying to install a custom rom..Plz help
Try cf-foot ( kernel ) or try the zip methord ( i forgot the link , search in google ,this is a little bit safer )
Sent from my GT-I9100 using xda premium
Mebin Robin said:
Try cf-foot ( kernel ) or try the zip methord ( i forgot the link , search in google ,this is a little bit safer )
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Cf root will just root the phone ryt ?? What i want is to have CWM recovery to be able to install custom roms
pasanjay said:
Cf root will just root the phone ryt ?? What i want is to have CWM recovery to be able to install custom roms
Click to expand...
Click to collapse
Cf root will give u root and CWM recovery, so u're be able to install custom rom
1. Download any version of CWM from here
2. Get desired rom (kernel too if you want)
3. Place everything in Externel SDcard
4. Boot into stock recovery (Power+Home+Vol up)
5. Use stock recovery to flash CWM
6. Backup Current stock rom
7. Wipe the usual
8. Flash Custom rom (Or just kernel)
9. Reboot
10. ?? Profit ??
Now you got Custom rom or Kernel + Full stock rom backup (can always get stock rom from sammobile if you lose it)
-Grift- said:
1. Download any version of CWM from here
2. Get desired rom (kernel too if you want)
3. Place everything in Externel SDcard
4. Boot into stock recovery (Power+Home+Vol up)
5. Use stock recovery to flash CWM
6. Backup Current stock rom
7. Wipe the usual
8. Flash Custom rom (Or just kernel)
9. Reboot
10. ?? Profit ??
Now you got Custom rom or Kernel + Full stock rom backup (can always get stock rom from sammobile if you lose it)
Click to expand...
Click to collapse
Thank u for the response. But im a bit scared flash or wipe in temp touch recovery. Because a friend of mine got his s2 super bricked while trying to flash on stock 4.04 kernel. does this emcc bug affect 4.03 stock kernels as well? So can i just flash the latest Siyah Kernel using ODIN ??
Any time you root/flash a Rom theres a chance to brick your phone. What -Grift- said is the easiest and best way to flash a custom Rom in my opinion. Just make a Nandroid backup, delete data and cache, install the zip file from your SD card. I've flashed 4 Roms so far with this phone, all successfully. Currently I'm running Cyanogenmod 7 on my DINC 2. Good luck on whatever method you choose.
Sent from my Droid Incredible 2 using Tapatalk.
Go into download mode, connect your phone to your computer and use Odin to flash a custom kernel to your phone. That done, you have root and you're safe from the emmc superbug. (EDIT: although 4.0.3 doesnt have the bug, if thats what is bothering you) You can then flash a custom rom or whatever else you please. Use the TAR version of siyah v4.1.5 from www.gokhanmoral.com
Instructions on how to use Odin are available all over this site and on the web in general. Search and you'll get it.
If you don't wanna use Odin, your only other option is flashing temporary CWM. Search for rachmat3's method or use the one mentioned above. All three are equally safe provided you read up on the procedure adequately.
99.9% of the phones getting bricked is coz people jump headlong into the procedure without first bothering to educate themselves on how to go about it. They get what they deserve.
Sent from my GT-I9100 using xda app-developers app.
If noobs on xda have taught me one thing, its that smartphones just aren't for everyone.
Or just wipe only when you have flash the rom (custom recoveries are safe e.g siyah dorimanx)
Edit: AFAIK 4.0.3 are safe the bug is with leaked 4.0.4?
HAXTREME said:
Go into download mode, connect your phone to your computer and use Odin to flash a custom kernel to your phone. That done, you have root and you're safe from the emmc superbug. (EDIT: although 4.0.3 doesnt have the bug, if thats what is bothering you) You can then flash a custom rom or whatever else you please. Use the TAR version of siyah v4.1.5 from www.gokhanmoral.com
Instructions on how to use Odin are available all over this site and on the web in general. Search and you'll get it.
If you don't wanna use Odin, your only other option is flashing temporary CWM. Search for rachmat3's method or use the one mentioned above. All three are equally safe provided you read up on the procedure adequately.
99.9% of the phones getting bricked is coz people jump headlong into the procedure without first bothering to educate themselves on how to go about it. They get what they deserve.
Sent from my GT-I9100 using xda app-developers app.
If noobs on xda have taught me one thing, its that smartphones just aren't for everyone.
Click to expand...
Click to collapse
Thank you for the info. I know few things about rooting and custom roms. I have flashed so moany roms with my HTC. Im new to samsung and odin. Thats why i wanted to make sure before doing anything stupid.
Thank u all for the help. I successfuly flashed Siyah kernel to get root and CWM

[Q] SGSII- can't update CWM

Hi everyone.
i rooted my phone with this guide which installed a based CWM recovery on my phone with Siyah-s2-v6.0b4.tar using Odin.
Now i want to run a touch CWM recovery but no matter how i tried- no way worked and i always get the based CWM recovery again.
I tried ROM manager and RECOVERY tools but none of these actually worked (although i got success messages).
I also tried to download the recovery file from the official site of CWM, but when i tried to copy it to my sd card an error message popped out saying copy can't be done and the device is not connected or working or something.. i can copy other zip files without any problem.
can anyone help?
thanks.
1) Do not use Rom Manager with the SGS2. It will break recovery and/or cause bootloops eventually. It may even brick your phone. You don't need it.
2) Any recovery flashed independently of the kernel on the SGS2 will only persist until the next reboot, which is why what you're trying isn't working. If you want a touch version of CWM, flash/run a kernel which has this. Which kernels ? Read the kernel threads in the development section (I don't use PhilZ on my SGS2, but his comes to mind as I use it on my I9505).
heywebi
MistahBungle said:
1) Do not use Rom Manager with the SGS2. It will break recovery and/or cause bootloops eventually. It may even brick your phone. You don't need it.
2) Any recovery flashed independently of the kernel on the SGS2 will only persist until the next reboot, which is why what you're trying isn't working. If you want a touch version of CWM, flash/run a kernel which has this. Which kernels ? Read the kernel threads in the development section (I don't use PhilZ on my SGS2, but his comes to mind as I use it on my I9505).
Click to expand...
Click to collapse
thank you very much! i'm relieved i didn't brick my phone, that could have been a mess..
flashing kernels is like regular flashing? just installing the zip file? do i need to wipe any data or cache or something?
thanks for your response.
Follow the flashing instructions for the kernel in question to the letter (always on the first page of the kernel thread, always very clear/precise/easy to follow).
MistahBungle said:
.... I use it on my I9505).
Click to expand...
Click to collapse
In that case, great to still see you in the s2 forums
Sent from a galaxy far, far away

Backup EFS directly from phone?

I am almost ready to perform my first custom ROM installation.
I am only travelling with a Mac so I can't use Windows software.
Is there a way to backup my/EFS directly from the phone?
Sent from my GT-I9100 using Tapatalk
You need a custom recovery. How will you flash a custom rom w/o custom recovery?
Sent from my GT-N7100 using XDA Premium 4 mobile app
Blomberg said:
I am almost ready to perform my first custom ROM installation.
I am only travelling with a Mac so I can't use Windows software.
Is there a way to backup my/EFS directly from the phone?
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Download HC ktool from the market, create your efs backup with it and use a root explorer to copy it to an external removable micro SD card......
Edit.......you need to be rooted in order to use HC ktool.......
This might be my S2, or it might be my W...but it's definitely CM
mezo91 said:
You need a custom recovery. How will you flash a custom rom w/o custom recovery?
Sent from my GT-N7100 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
For rooting I will use Framaroot.
For installing CWM I believe that you can install it via ROM Manager, or you can install the ROM directly via Mobile Odin.
Sent from my GT-I9100 using Tapatalk
OK....first....
Why look elsewhere for rooting methods? Everything you need is right here on XDA.
Second.....NEVER use ROM manager on an S2.....it breaks things.
Third....mobile Odin can only be used on rooted devices....primarily for flashing stock firmwares.
What version of android is on your S2....GB, ICS or JB?
This might be my S2, or it might be my W...but it's definitely CM
Yes, I found Framaroot here and am planning to use it for the rooting purposes.
Thanks, good to know. So I will need to install CWM manually I guess. Somehow.
What is it that Mobile Odin does, is it an actual reovery ROM itself or does it install CWM which in turn installs the ROM?
But I can use Mobile Odin to install a custom ROM I think?
I am 4.1.2 JB
Sent from my GT-I9100 using Tapatalk
Mobile Odin is a phone based version of PC Odin.....it is designed to flash back to stock from a rooted modified phone without the need to hook the phone to a PC....
You're on 4.1.2.....
Search for the PhilZ thread.......
With the downloads contained, you can root and flash CWM via the stock recovery in one flash.....don't get much easier than that.......
This might be my S2, or it might be my W...but it's definitely CM
I can root it and flash it in one step? I've found like 50 guides but none of them as simple as you're suggesting.
There are so many ways to do each individual step.
I reckon the steps after that would be to install my custom ROM via CWM via SD card. Clear/Wipe cache and install the custom ROM again?
Sent from my GT-I9100 using Tapatalk
Edit: How can I backup EFS before using the technique you mentioned to root/flash CWM in one go, if my device is not yet rooted?
As I said........easy.....
1) flash PhilZ via stock recovery to root and flash CWM
2) At this stage your phone will still boot normally and allow you to download HC ktool in order to make your EFS backup. It might be an idea to make a full backup (nandroid backup) of your current setup using CWM too....
3) use CWM to flash the ROM (and it's associated gapps package) of your choice.
4) use CWM to perform the cache, dalvik and data wipes.
5) reboot, perform initial setup download user apps.......
Job done.......
This might be my S2, or it might be my W...but it's definitely CM
You could also juse Siyah Kernel, a good alternative to philz:good:
Except that it can't be flashed via the stock recovery.....it has to be flashed via Odin......
This might be my S2, or it might be my W...but it's definitely CM
In which way does a Kernel replace a rooter/bootloader flasher, are these not different things?
Sent from my GT-I9100 using Tapatalk
keithross39 said:
As I said........easy.....
1) flash PhilZ via stock recovery to root and flash CWM
2) At this stage your phone will still boot normally and allow you to download HC ktool in order to make your EFS backup. It might be an idea to make a full backup (nandroid backup) of your current setup using CWM too....
3) use CWM to flash the ROM (and it's associated gapps package) of your choice.
4) use CWM to perform the cache, dalvik and data wipes.
5) reboot, perform initial setup download user apps.......
Job done.......
This might be my S2, or it might be my W...but it's definitely CM
Click to expand...
Click to collapse
I very much appreciate your help Keith. I've been on numerous forum but never got this good feedback.
I searched the PhilZ thread and got so many results. My model is i9100 of the Galaxy S2, I guess the methods you have been describing works for this model?
I need to backup program data and EFS before I dare start playing around.
How can I backup EFS before using the technique you mentioned to root/flash CWM in one go, if my device is not yet rooted?
You can't. And you don't need to unless your phone is rooted, because if your phone is rooted nothing you can do to the phone is capable of borking the EFS/IMEI.
Edit - Also, I'm detecting a lack of knowledge of 'the basics' in the threads you've posted recently; I strongly suggest you read all the guides/tutorials stickied in the thread near the top of the General section before you do anything to your phone. A lack of knowledge exponentially increases the risk of you permanently breaking your phone depending on how little knowledge you have when you attempt to 'do stuff' to the phone.
For backing up the efs you'll need to flash a recovery first (like Philz as already suggested).
But anyway, problems with the efs won't be caused by just rooting so you can go ahead and root first and then use KTool.
kestrel5915 said:
For backing up the efs you'll need to flash a recovery first (like Philz as already suggested).
But anyway, problems with the efs won't be caused by just rooting so you can go ahead and root first and then use KTool.
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* * *
Thank you. As I want to perform all the necessary steps directly on my phone, I am now thinking of doing the following.
Installing Framaroot (APK) and rooting my Samsung Galaxy S2 i9100 (http://forum.xda-developers.com/showthread.php?t=2130276)
Installing KTool and backing up EFS to external SD-card
Installing Titanium Backup (Root version) to backup AppData
Alt 1.) Downloading Mobile Odin to OS. Flashing ROM + GApps via this. But this keeps my stock recovery? (http://forum.xda-developers.com/showthread.php?t=1347899)
Alt 2.) Downloading PhilZ Touch Recovery 3.0 for Galaxy S2 i9100 which flashes + re-roots for me (?). Not sure if it's the right version as the post is old? (http://forum.xda-developers.com/showthread.php?t=1840223)
Alt 3.) Flashing CWM via Mobile Odin, and then in turn boot to recovery (now CWM) and flashing ROM + Gapps via CWM. This should update my recovery as well as my ROM?
After flashing ROM, entering recovery to Wipe Cache, Dalvik and Data
Flash ROM again as previous step supposedly deletes the ROM?
Boot ROM, Configure, Install Apps and restore App Data
Does the above look correct?
Is the version of PhilZ the correct one? It appears to be a 'temporary recovery' rather than a permanent, which might be what I am after if I want to flash the current version of CWM for Galaxy S2 from www.clockwerkmod.com/rommanager
Follow the instructions I gave in this post....
http://forum.xda-developers.com/showthread.php?p=48583106
and you will have a rooted phone running a custom ROM. No need to reflash the ROM after the wipes. Wiping cache, dalvik and data will NOT erase the ROM, all it'll do is erase any personal settings and downloaded apps.
Mobile Odin can't be used to flash custom ROMs, I think it can be used to flash CWM.... but only if you can find a compatible version in a .tar format.
PhilZ is still your best bet.....you will root your phone and install CWM in one hit.....all from your existing stock recovery. The CWM inPhilZ is NOT temporary, though it WILL be overwritten when you flash the ROM which will contain it's own permanent version of CWM. Just match your phones build version to the PhilZ kernel that you download.......
Why make extra work for yourself by increasing the number of steps you have to take (use framaroot then try to find a compatible CWM) when you can do it in one step?
And as mentioned before.....DON'T use ROM manager on an S2.....it breaks things....specifically recovery....one of your prime goals.....
This might be my S2, or it might be my W...but it's definitely CM
cubflyer said:
You could also juse Siyah Kernel, a good alternative to philz:good:
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I made big projects of things. As a complete novice within Android, I've read through numerous threads, made project notes, consolidated info and made Mindmaps to understand this.
From my understanding, a kernel (I've seen Siyah mentions on many places) is the interpreter between hardware and the instructions given by the software.
In which way is this comparable to a recovery partition/ROM, namely PhilZ?
I'm sure it's some detail I'm missing, and thanks for the tip.
keithross39 said:
Follow the instructions I gave in this post....
http://forum.xda-developers.com/showthread.php?p=48583106
and you will have a rooted phone running a custom ROM. No need to reflash the ROM after the wipes. Wiping cache, dalvik and data will NOT erase the ROM, all it'll do is erase any personal settings and downloaded apps.
Mobile Odin can't be used to flash custom ROMs, I think it can be used to flash CWM.... but only if you can find a compatible version in a .tar format.
PhilZ is still your best bet.....you will root your phone and install CWM in one hit.....all from your existing stock recovery. The CWM inPhilZ is NOT temporary, though it WILL be overwritten when you flash the ROM which will contain it's own permanent version of CWM. Just match your phones build version to the PhilZ kernel that you download.......
Why make extra work for yourself by increasing the number of steps you have to take (use framaroot then try to find a compatible CWM) when you can do it in one step?
And as mentioned before.....DON'T use ROM manager on an S2.....it breaks things....specifically recovery....one of your prime goals.....
This might be my S2, or it might be my W...but it's definitely CM
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Thank you once again Keith for your engagement and good tips.
I think the reasons why I am considering the different options, and also trying them out - is to get a broader understanding of Android and the alternative processes as I approach my goal of flashing a new ROM.
1.) So far I installed Framaroot and rooted the device successfully.
2.) I then downloaded Hellcat's kTool and made an EFS backup (and a kernel dump, whatever that is)
3.) Then I installed Titanium Backup and backed up all user + system apps (+data I think)
4.) I then downloaded CWM from www.clockworkmod.com/rommanager > recovery as a zip, booted the stock recovery and started CWM (locally, without replacing stock recovery for some reason), from which I did a full Nandroid backup (with stock recovery intact in this backup, I guess. Device was however rooted so it's not fully original).
I reckon I now just need to download my custom ROM and it's relevant Gapps.
I have read good things about Mobile Odin, and since a while back it supports *.zip files so I believe it is a good alternative for flashing custom ROM's now as well.
PhilZ was a bit intimidating, as there was a general thread and different model based threads in each subforum. They were also in different versions, dates and basebands. Also it appears to be available in a "permanent" download as well as a "temporary", which caused my confusion in the last thread.
I did not know that the recovery was replaced when installing a custom ROM, as I did not know that they contained their own partition of a recovery ROM.
Thanks for the information about not needing to re-flash ROM after the relevant wipes.
Thanks for the discouragement of ROM Manager, I promise to stay away from it.
From my understanding, PhilZ seems to be a modified version of CWM6, which includes ChainFire's Auto Root and some other add-ons as well. Is this a correct understanding?
You don't need to backup system apps/data from Titanium Backup because restoring them on a new rom will definitely cause issues.
Plus in case of a bad flash or something nandroid is always there for you so before doing anything new with the phone always do a nandroid backup.

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