[Q] ROM - Galaxy S II Q&A, Help & Troubleshooting

Hi,
Can anybody tell me if i root my s2 (currently on KF3 firmware) with cf method and flash stock kernel,will i be able to install new ROMS like litening etc,how ?, and will i be able to come back to my stock firmware and kernel,and how ?
thanks in advance !

You can flash any Custom firmware anytime, without root. And you can go back to Stock firmware and kernel anytime.
Regards.

so if i root(by a method you earlier told me),can i also use any rom on that ?if yes then how and also can you please tell me how to come back to stock rom(before flashing with custom rom) state ?

You just need to add the .tar file of the Custom firmware in PDA section of Odin and flash, same for Stock ROM.
Regards.

you can root your phone as ihappy said but use the threads on the forums to find the stock kernels and roms that suit you. and i mean by what region you at. most of the custom roms come with root anyway so i would not worry about rooting. the thing is though whenever you do flash always make backup. first time i flashed i did not do backup and i was panicking on how to go back to stock.but thankfully the guys in this community are the best around and helped me out. hope my post helped in anyway

Related

[Q] Reverting to Stock ROM

Okay guys, I'm in real need of your help here, whether it's a proper answer or some sarcastic link to the correct thread.
I've been testing out roms all over, and different kernels, but now I want to revert back to stock so I can start afresh. Ideally I just want the stock rom. I'm happy running an unsigned (rooted) kernal, but I do want the stock rom.
I'm in the UK, and my phone wasn't branded with any carrier.
Someone, help!
http://forum.xda-developers.com/showthread.php?t=1075278
read the first page completly then ask question and you will be helped
in a nut shell...
1: get odin
2: get stock rom
3: flash using download mode.
Hi.
I have Odin, and have used it.
I have used download mode to install a rom.
What I can't find is a stock rom.

[Q] ICS Update - SGS 2 Rooted 6 months ago

Thanks for reading - I'm a noob.
I came here to learn about rooting devices over 6 months ago and decided to have a go at rooting my SGS 2 to remove the bloatware and speed it up a bit.
Performance has been great - I left the stock firmware because the OS/ROM was not a concern to me. I simply flashed the kernel with CF Root: CF-Root-SGS2_ZS_OZS_KF4-v4.0-CWM4.tar
Now I am led to understand I would need to flash back to my stock kernel to allow the OTA update for ICS - the only issue is I cannot find any available downloads for I9100TDVKF4 - Telstra's stock kernel.
Now I read somewhere a reply to a similar question was "just flash it with a new rom, I dont know why you want to go to stock" - Well I want to update to the official ICS. I was under the impression that would be available a long time ago and never was. I just want to....
Please can anyone help me to point out where I can find that kernel? perhaps there is a different kernel i could use?!
Is there any ICS firmware I would be able to download and flash to the ROM using Odin whilst keeping my phone rooted?
I found this place really helpful in how to root and now I just hope someone can help me get onto ICS!
Cheers
Is there any ICS firmware I would be able to download and flash to the ROM using Odin whilst keeping my phone rooted?
No only custom rooted firmware .
Try Checkfus for your stock firmware download and flash via Odin .
Dont confuse yourself with kernels without understanding .
ICS on Checkfus or Kies for your phone install otherwise wait until your provider releases .
or flash your original saved firmware that will overwrite root .
jje
Thanks for taking the time to reply mate....
Dont confuse yourself with kernels without understanding - dont worry ive been trying not to but it seems thats the only thing i changed on my phone when i rooted it so i was lead to believe i needed to change that back...
My provider has just released new version of ICS but i cant actually install it once ive downloaded it over the air it only gets to 8% then reboots itself and i believe thats because the phone is rooted...
or flash your original saved firmware that will overwrite root - I dont know if i backed it up correctly on the guide i was using!!! The only thing i backed up was the apps using titanium backup so now i feel im stuck!
Use check fus down loader and get the official ics ROM.
It's under i9100t Australia/telestra
Problem solved.

help with my new s2

i am from galaxy mini forum so get a galaxy s2 but how to know if it is S2 or S2 GT-i9100 o and what the diffirence?? and can you gays pleas link me to a tut aboug instaling costome recovery, which ODIN to use and so on .... last thing which is the best stable rom to use .....thanks in advance
1) Check the sticker on the phone chassis under the battery.
2) Differences between SGS2 variants ? Wikipedia.
3) Just about everything you need to know to get you started is in the Stickies.
4) There's no such thing as the "best stable rom to use". There are a heap of custom roms for the SGS2, it's an individual preference thing. And because no two people use their phone the same way or have it setup the same, and because component-wise no two phones come out of the factory exactly the same, your experience with a particular rom will most likely vary from mine.
The best thing to do is to get your phone rooted, preferably with CWM installed. This will enable you to backup, restore & flash roms/kernels in a matter of minutes. You can than try a bunch of roms for yourself. If you find you don't like a rom you try, it's easy to go back to your previous setup easily by restoring a backup; recommended regularly/before you flash anything to your phone.
ok so by flashing cwm and then a costom rom the divise will root by it self and do i have to flash a stock ics rom to install a costom ics rom??????
Lackchoo,
Flash one of Chainfire's kernels. His instructions are very clear. That will give you root and CWM, and possibly also a yellow triangle at startup which you shouldn't worry about at all.
You don't need to flash a stock ICS ROM to flash a custom ROM. After rooted, in CWM, just install the downloaded ZIP ROM file of the custom ROM. You will keep root and triangle will go away.
Ditto what the above person said about ROM's. However, you can try Cyanogen (Do a 'stable' release, not a 'nightly'), its the most 'popular' ROM in terms of numbers. One can't and shouldn't say which one is best. But for a newbie, I think Cyanogen is a good place to start. Perhaps it will give you the least issues and the most 'oohs!' for your initial newbie effort
I don't have the links with me from the smart phone, but just search 'chainfire kernel root galaxy s2' and 'cyanogen galaxy s2' and you should find the relevant thread. Read it slowly and repeatedly! I know I had to
Sent from my GT-I9100 using Tapatalk 2

[Q] i9300 Stock ROM (Australia)

Hey guys, got my S3 here, and need to flash it back to the stock rom due to selling it.
The buyer knows its rooted, its currently running CM10
All that i need to do is flash it back to stock, no un-rooting, triange away or any of that stuff.
Where can i find the stock rom for Australia? already checked the stickys and threads with all the stock roms, but they have almost every other country.
Is flashing the stock rom the same way as doing a custom (after the rooting?)
Done heaps of custom roms on >5 phones, but this is the first time going back
TLDR, i9300 Australian phone, VODAFONE. Need to flash back to stock rom, but dont need to unroot, currently on CM10
Thanks
EDIT: Someone else posted an almost identical thread to me, 6 min before this one. Ill copypaste this to that thread, thanks
Muchoman1 said:
Hey guys, got my S3 here, and need to flash it back to the stock rom due to selling it.
The buyer knows its rooted, its currently running CM10
All that i need to do is flash it back to stock, no un-rooting, triange away or any of that stuff.
Where can i find the stock rom for Australia? already checked the stickys and threads with all the stock roms, but they have almost every other country.
Is flashing the stock rom the same way as doing a custom (after the rooting?)
Done heaps of custom roms on >5 phones, but this is the first time going back
TLDR, i9300 Australian phone, VODAFONE. Need to flash back to stock rom, but dont need to unroot, currently on CM10
Thanks
EDIT: Someone else posted an almost identical thread to me, 6 min before this one. Ill copypaste this to that thread, thanks
Click to expand...
Click to collapse
samfirmware.com/
You should've asked this in Q&A or Australian Galaxy S3 thread...anyway here is the link for latest JB stock ROM for Vodafone AU. Flash it with Odin in PDA
www.hotfile.com/dl/185215375/bb3b898/I9300TDUDLK3_I9300TVAUDLK3_VAU.zip.html
Sent from my GT-I9300 using xda app-developers app
Thanks man, you're a legend!

Help with recovery and flashing

Hello everyone, i know i am really late in the game here by playing with this phone but my friend has one and wants me to fix it up for him. it is completely stock running android 2.3.6. I can't seem to make heads or tails of how to stick a recovery on this thing and flash a rom. can anyone point me in the right direction as how to do this? thanks mates
First thing you need to know is that the recovery is compiled into the kernel, so you don't flash a recovery separately, you just flash a custom kernel and you will have a custom recovery after.
The latest stock firmware for this phone is 4.1.2 Jelly Bean, but since the phone is still on the original 2.3.6 firmware, you could flash the old Siyah kernel and use it's recovery to flash custom firmware.
You need to root the phone first. You can root this phone with Framaroot using the Aragorn exploit. Then go to this post and download the Tar version of Siyah 2.6.14 Kernel. Flash it in PDA without ticking Re-Partitioning.
Stable custom Touchwiz based firmware available in the development forum are SHOstock or Cooked. Both are based on 4.1.2, and neither are currently supported but both are stable.
If you want something more recent, there are various aosp based firmwares available in the development forum. You may not be able to flash some of them directly from that old recovery in Siyah 2.6.14, but if you need help, you'll have to try to get some help in their threads, because I don't use those.
Happy flashing, and if you need help, ask.
creepyncrawly said:
First thing you need to know is that the recovery is compiled into the kernel, so you don't flash a recovery separately, you just flash a custom kernel and you will have a custom recovery after.
The latest stock firmware for this phone is 4.1.2 Jelly Bean, but since the phone is still on the original 2.3.6 firmware, you could flash the old Siyah kernel and use it's recovery to flash custom firmware.
You need to root the phone first. You can root this phone with Framaroot using the Aragorn exploit. Then go to this post and download the Tar version of Siyah 2.6.14 Kernel. Flash it in PDA without ticking Re-Partitioning.
Stable custom Touchwiz based firmware available in the development forum are SHOstock or Cooked. Both are based on 4.1.2, and neither are currently supported but both are stable.
If you want something more recent, there are various aosp based firmwares available in the development forum. You may not be able to flash some of them directly from that old recovery in Siyah 2.6.14, but if you need help, you'll have to try to get some help in their threads, because I don't use those.
Happy flashing, and if you need help, ask.
Click to expand...
Click to collapse
If you don't mind me asking, what's the benefit of having the recovery compiled into the kernel. Do you think it is better than having them separately, and if so, can you explain why?
azeem40 said:
If you don't mind me asking, what's the benefit of having the recovery compiled into the kernel. Do you think it is better than having them separately, and if so, can you explain why?
Click to expand...
Click to collapse
You'd have to ask the Samsung engineers why they did that. Since the more common standard is to have the recovery in it's own separate partition, it suggests that is the better solution, I would think.
Having been on a device for a while that has a separate partition for recovery (N5), it's a feature that is extremely comforting in that it is virtually impossible to brick those types of devices.
The way I see it is that having the kernel on the same partition as the recovery is beneficial as more kernels can be built, instead of it being ignored.

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