[Q] Downgrading to gingerbread 2.3.6 from ICS 4.0.3 - Galaxy S II Q&A, Help & Troubleshooting

Hey guys
My S2 was preloaded with ICS 4.0.3 when i bought it. However i have noticed problem with many of the HD games, they run for sometime and crash...
My question is, how can i downgrade to gingerbead 2.3.6.?
I did find my region 2.3.6 firmware on sammobile..so if i follow the flashing steps from odin..the downgrade will be done successfully?
Also how safe is the process?
Also i would like to know how to take a back up my phone in the current state? So if something goes wrong or if i am not satisified with the downgrade, i can go back to ICS 4 i.e. the same condition my phone was when i unboxed it?
Some suggestions and answers would be really appreciated
Thanks

You cant backup your current rom without rooting it. here is a good vid on how to root a galaxy s2 http://galaxys2root.com/galaxy-s2-root/how-to-root-galaxy-s2-i9100-icsandroid-4-0/
You will need to back up your phone using clockwork recovery
You can however download the latest rom using Check Fus you can find it here http://fus.nanzen.se/ This should be safe. this video here will show you how to use odin to flash a stock kernel http://galaxys2root.com/galaxy-s2-unroot/how-to-unrootunbrick-your-galaxy-s2-i9100-ics/
you can always go back to ics if you do not like the GB stock rom
Hope this helps
-Ryan

aviral1990 said:
Hey guys
My S2 was preloaded with ICS 4.0.3 when i bought it. However i have noticed problem with many of the HD games, they run for sometime and crash...
My question is, how can i downgrade to gingerbead 2.3.6.?
I did find my region 2.3.6 firmware on sammobile..so if i follow the flashing steps from odin..the downgrade will be done successfully?
Also how safe is the process?
Also i would like to know how to take a back up my phone in the current state? So if something goes wrong or if i am not satisified with the downgrade, i can go back to ICS 4 i.e. the same condition my phone was when i unboxed it?
Some suggestions and answers would be really appreciated
Thanks
Click to expand...
Click to collapse
Yea flashing through Odin is safe. Just don't mess with the repartition box or pit files unless you are 100% sure what you're doing. And if you're stock you can backup your device through Kies.
Sent from my GT-P7510 using xda premium

Related

Question before upgrading to ICS (updates comming March 10th)

well, i have an GS2 rooted (android 2.3.4) and sim unlocked with Galaxy S Unlocker.
if i upgrade to ICS when its released, do i loose root?
if I loose root, SuperOneClick will still work if my GS2 is ICS or do i need to wait to an update of SUperOneClick (to supor GS2 with ICS) to root my device again?
well, those are my questions.
thanks in advance.
source of update:
Code:
h.t.t.p://skp.samsungcsportal.com/integrated/popup/FaqDetailPopup.jsp?seq=422548&cdsite=ph
1) Of course you'll lose root if you go back to stock.
2) Ask whomever developed SuperOneClick if it will work with ICS.
Zentik said:
well, i have an GS2 rooted (android 2.3.4) and sim unlocked with Galaxy S Unlocker.
if i upgrade to ICS when its released, do i loose root?
if I loose root, SuperOneClick will still work if my GS2 is ICS or do i need to wait to an update of SUperOneClick (to supor GS2 with ICS) to root my device again?
well, those are my questions.
thanks in advance.
source of update:
Code:
h.t.t.p://skp.samsungcsportal.com/integrated/popup/FaqDetailPopup.jsp?seq=422548&cdsite=ph
Click to expand...
Click to collapse
Or you can wait for an ICS custom ROM ...
Hi,
I've rooted my S2 with CF-Root 4.1 and I'm using a 2.3.5 SamFirmware ROM.
Can I just update over KIES when ICS comes out? Will the Kernel be replaced and what Files will be erased?
Greets
Facy87 said:
Hi,
I've rooted my S2 with CF-Root 4.1 and I'm using a 2.3.5 SamFirmware ROM.
Can I just update over KIES when ICS comes out? Will the Kernel be replaced and what Files will be erased?
Greets
Click to expand...
Click to collapse
Yes, you will loose root when updating trough KIES.
Facy87 said:
Hi,
I've rooted my S2 with CF-Root 4.1 and I'm using a 2.3.5 SamFirmware ROM.
Can I just update over KIES when ICS comes out? Will the Kernel be replaced and what Files will be erased?
Greets
Click to expand...
Click to collapse
If you have a rooted rom, if I remember well, Kies won't update your firmware... You have to use ODIN...
ok so just to make this 100% clear (i am a complete noob and i always make stupid questions, so flaming is accepted )
I have a Galaxy S2 with just rooted firmware (XWKJ1). I used an insecure version of this firmware to root the phone following the Odin/CF Root guide. Also I am not using any custom made rom like CM for example... If I upgrade my phone through Kies when the ICS update rolls out will I be able to complete the process succesfully?
Also from what I understand if the update procedure is completed succesfully I will lose root and will have to do the whole process all over again... Is there an insecure firmware matching the ICS firmware that will replace my old one?
Thanks in advance for your help...
pokkas88 said:
ok so just to make this 100% clear (i am a complete noob and i always make stupid questions, so flaming is accepted )
I have a Galaxy S2 with just rooted firmware (XWKJ1). I used an insecure version of this firmware to root the phone following the Odin/CF Root guide. Also I am not using any custom made rom like CM for example... If I upgrade my phone through Kies when the ICS update rolls out will I be able to complete the process succesfully?
Also from what I understand if the update procedure is completed succesfully I will lose root and will have to do the whole process all over again... Is there an insecure firmware matching the ICS firmware that will replace my old one?
You may get offered the ICS update via KIES only time will tell .
Is there an insecure firmware matching the ICS firmware that will replace my old one?
ICS is not yet released when its released kernels will be available .
jje
Click to expand...
Click to collapse
hughfollett said:
If you have a rooted rom, if I remember well, Kies won't update your firmware... You have to use ODIN...
Click to expand...
Click to collapse
Ok.. if i upgrade to ics with odin, i loose root too??
Zentik said:
Ok.. if i upgrade to ics with odin, i loose root too??
Click to expand...
Click to collapse
Unless the ICS firmware you upgrade to is already rooted, then yes. You will lose root.
Just try Resurrectio Remix v9.6 by westcrip. Its the best ics rom right now.
Sent from my GT-I9100 using XDA
JJEgan said:
You may get offered the ICS update via KIES only time will tell .
jje
Click to expand...
Click to collapse
Ok one more thing... If Kies doesnt work.. will it work through FOTA?
pokkas88 said:
Ok one more thing... If Kies doesnt work.. will it work through FOTA?
Click to expand...
Click to collapse
Probably not but who knows until its released and OTA is actually working .We already know that root and custom roms will block access .
jje
ICS release
Seems like the updated will not happen tomorrow!!
assaf.bm said:
Seems like the updated will not happen tomorrow!!
Click to expand...
Click to collapse
It was never guaranteed to be released worldwide on a single day anyways. Can you imagine the millions of I9100 users all trying to download the official ICS update via Kies at the same time? Their servers would have an aneurysm.
It would surely have been reposted for download though. Also, it was posted in various languages including English speaking Samsung sites.
I know that it is what it is and there's little point now, but I haven't had my ***** about it yet, except to my wife who is fairly confused about why this is such a disappointment for me.
Now I've had my little ***** attack about it not happening and will maintain it to this.
I dont understand why its such a big deal to get the update. Why not just flash a custom rom?
Sent from my GT-I9100 using XDA
kilometers4 said:
I dont understand why its such a big deal to get the update. Why not just flash a custom rom?
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
I've been squeamish after many GB ones had serious issues, for example we'd forgotten our camera when my second kid was born by cesarian and I had a sleep of death on the phone - was doing a Nandroid restore of stock 10 minutes prior to entering the operating room. It saved the day.
That said, I flashed a custom ROM right after that last post and it's been really impressive. I haven't yet found an issue with it. Everything seems to be working really well and the battery life might even be a little better than the GB ROM I was using though it's still to early to say.
I get annoyed with all the banners and the immediate back patting when there's a new RoM that hasn't even been tested, but just to answer the question some people might be asking about which one I was impressed with, it was Resurection Remix. It also happens, thogh, to be the first one I flashed that was a Samsung based ROM opposed to AOSP.
It is still annoying though. I suspect Samsung is merely manufacturing their own hype about this, intentionally, and that is irritating.

[Q] Which method should I continue with?

Hello all!
My friend just got ICS on his SGSII and he does not like it at all (I have no clue, why).
He wants to downgrade to Gingerbread or Honeycomb instead. Is that even possible without rooting the phone?
And if I root it, how should I proceed? What is the easiest way? I rooted my SGSII a year back, and I have no recollection on how I did it back then. My phone was Gingerbread / Honeycomb back then, and it took me a while to do.
Any ideas is welcome. Thank you!
Downgrade to GB using ODIN. Read this thread, it contains all required information.
Go to intratech thread and flash xwla4 firmware with odin.
Sent from my GT-I9100 using XDA
The phone crashes, when trying to flash any of those old firmwares 2.3.5 and 2.3.6 ! :-(
Nevermind - I just flashed it with the Gingerbread files from this thread : http://forum.xda-developers.com/showthread.php?t=1457458
Works perfectly now.

How do i get back to original rom

hi guys,
i have a samsung galaxy s2 (GT-i9100 - NFC), which i got from orange end of 2011. I the in jan 2012 got help from this forum to root my phone and change the rom from the original to:-
Rom & Build No: VillianROM 3.0
And' ver: 2.3.5
Baseband: i9100XXki1
Kernel: 2.6.35.11-ninphetamine-2.0.5+ninpo @ titan #20
Although the phone works okay, i'm beginning to notice a lot of slowdowns and regular reboots, so i want to go back to whatever latest google android OS the S2 can handle (rooted). I've forgotten what to do and would be most grateful if someone could please help me with the following:-
1. Whats the best software/method to backup everything?
2. What is the latest rom (original, but should not have a provider's bloatware) i can use on the S2?
3. Once backed up, how do i change from VillianRom to the latest/best OS currently available?
4. How can i root the original rom?
Thanks once again
Check
www.galaxys2root.com
I think it ll help you and save you time
Sent from my GT-N7100 using Tapatalk 2
Thanks oxi - there are quite a few roms on there and i simply want the latest official one which i can root. From your experience which is currently the most popular rom?
wowandroid said:
Thanks oxi - there are quite a few roms on there and i simply want the latest official one which i can root. From your experience which is currently the most popular rom?
Click to expand...
Click to collapse
For official stock rom, check
www.sammobile.com
And search latest stock rom for your region.
If you like custom rom, then there are so many roms on xda. I like omega and alliance roms. Choice varies from person to person
Sent from my GT-N7100 using Tapatalk 2
wowandroid said:
1. Whats the best software/method to backup everything?
2. What is the latest rom (original, but should not have a provider's bloatware) i can use on the S2?
3. Once backed up, how do i change from VillianRom to the latest/best OS currently available?
4. How can i root the original rom?
Thanks once again
Click to expand...
Click to collapse
1. Depends. You can do a backup in CWM to image your device or you can use Titanium Backup Pro to just backup your apps/appdata and restore to new rom.
2. http://www.sammobile.com/firmware/ < Check your device/model here.
3. Well just so you're clear, There is no "best" its subjective. Also "latest" depends on what type of rom you want to flash like Sammy/AOSP/AOKP/CM/MIUI etc. To flash latest samsung do it via ODIN, to flash any other do it via CWM. All info you need is already on forum.
4. By flashing custom kernel via ODIN.
All your questions have already been answered countless times.
Thanks very much guys. I simply want a fast lean rom as some seem to be slow running.
Doesn't get better than this.
sendign the phone for warranty?
you will need to flash back the original rom and unroot your phone.
if they found your phone is rooted the warranty void, experience it before so be aware of this.
Let me thank you guys for advicing me. I am most grateful. I read your posts a bit late and in the meantime, I think i have bricked my phone as i've flashed Samsung's original FW (I9100PBVLP8_I9100PORALP8_ORA) from sammobile.com. I used Odin v3 and successfully flashed the phone, but it's simply stuck on the boot logo. I have even done the following:-
I've managed to wipe the cache partition, but the recovery menu has No advanced options. It says:-
ANDROID SYSTEM RECOVERY <3a>
reboot system now
apply update from ext' storage
wipe data/factory reset
wipe cache partition
apply update from cache
test redband fota[FS]
But i still cannot get it to boot. I have also tried to use an old nandroid.md5 backup i made, but odin reports the file as invalid.
I'm desperate guys, please could someone help me.
Download Mode and re flash.
Are you sure you are flashing the right ROM right? Check under the battery to see the Device Model.
If it's i9100, then make sure you are downloading a i9100 ROM.
Thanks very much for your advice gastonw - i have managed to fix the problem now by going into system recovery and doing a factory reset, so thank you.
Although everything seems to be working fine, i would have preferred a more newer 4.2 jelly bean rather than 4.0.3. Oh well beggars can't be choosers and all that, lol! I guess i'll have to re-root it again.
gastonw mate ur a star! I've installed the latest JB rom u posted earlier and i'm very happy with it.
Now before i damage it beyond repair, how do i root it safely?
wowandroid said:
gastonw mate ur a star! I've installed the latest JB rom u posted earlier and i'm very happy with it.
Now before i damage it beyond repair, how do i root it safely?
Click to expand...
Click to collapse
Hi You could try this method http://forum.xda-developers.com/showthread.php?t=1501719 its quite safe so ether should work or wont, if don't no harm done as it doesn't need a insecure kernel.
I'm quite new myself @ this so plz use caution when trying it out.
Peace
wowandroid said:
gastonw mate ur a star! I've installed the latest JB rom u posted earlier and i'm very happy with it.
Now before i damage it beyond repair, how do i root it safely?
Click to expand...
Click to collapse
Good to know man, enjoy it
About root, I've seen a couple of methods laying around the threads, I'm sure they're safe.
I still think that ExynosAbuse app is the fastest way to Root now (one-click).
Here's a vid. I never tried it tho.
Thanks very much for the links AnubuRe and Gastonw.
Gastonw mate, i have been playing with the rom you posted a link to. Don't get me wrong, it's great and very fast, but the downside is that it doesn't have a huge number of options to tweak etc. Now someone mentioned a rom called Neatrom, but i'm wondering what you can recommend? I don't want a bloated rom...i want a fast rom, but with some options to allow me more greater control over the phone.
Also, i know this is a bit off-topic, but can you recommend me a widget app, where i can quickly dial phone numbers i.e. by touching a person's photo?

[Q] down grading

I went to samMobile firmware site and going to download, 4.0.3 ics or the GB firmware. I currently have ics 4.0.4 and my phone keeps going into SOD and i have to remove battery to turn back on, so can I flash with oldin one of the other version of firmware to downgrade to 4.0.3 ics without hurting my phone. as a noob and i have been trying to read posts. 4.0.3 befoore the upgate was running good.
You can flash the 4.0.3 UCLE5 from SamFirmware using odin. The file contains everything, including bootloaders I'm pretty sure, and is straight stock, not rooted. You will most likely need to perform a wipe data/factory reset, and there could be some risk involved due to the possible eMMC superbrick bug in the UCLE5 kernel.
Another possible route would be to flash UCLE5 plus root from the development section of this forum. It is a bit safer since the bootloader is removed. After that you should also install a custom kernel to get away from the stock kernel.
Thank You will have alook at JB roms. Hopefully this will fix the SOD issue Att and samsung are pissing meoof, on my 3rd phone with same isssue.
creepyncrawly said:
You can flash the 4.0.3 UCLE5 from SamFirmware using odin. The file contains everything, including bootloaders I'm pretty sure, and is straight stock, not rooted. You will most likely need to perform a wipe data/factory reset, and there could be some risk involved due to the possible eMMC superbrick bug in the UCLE5 kernel.
Another possible route would be to flash UCLE5 plus root from the development section of this forum. It is a bit safer since the bootloader is removed. After that you should also install a custom kernel to get away from the stock kernel.
Click to expand...
Click to collapse
angeleye50 said:
Thank You will have alook at JB roms. Hopefully this will fix the SOD issue Att and samsung are pissing meoof, on my 3rd phone with same isssue.
Click to expand...
Click to collapse
My understanding is that the sleep of death problem is a firmware issue in the 4.0.4 distribution. If that is the case, replacing hardware will not solve the problem. Or maybe your replacements have been for another reason? Anyway, I have never had stock 4.0.4 or stock 4.0.3 on my phone, but I am running a JB rom (SHOstock) and have never had the SOD issue.
stock 4.0.4
creepyncrawly said:
Another possible route would be to flash UCLE5 plus root from the development section of this forum. It is a bit safer since the bootloader is removed. After that you should also install a custom kernel to get away from the stock kernel.
Click to expand...
Click to collapse
Can anyone confirm if this process works coming from stock 4.0.4? I have a friend who asked me to root his device and I would hate for something to happen to someone else's phone. If it's my own, I would just not sleep all night until I've found a way to bring it back.
samusmaurie said:
Can anyone confirm if this process works coming from stock 4.0.4? I have a friend who asked me to root his device and I would hate for something to happen to someone else's phone. If it's my own, I would just not sleep all night until I've found a way to bring it back.
Click to expand...
Click to collapse
Just like anything else , it works the way it's supposed to if directions are followed and appropriate reading is done.

[Q] Samsung galaxy s2 firmware problem

Hi there,
I have the galaxy s2 from about a year ago, bought it form Dubai. Anyways till now I still didn't get the jelly beans update 4.1.2 and I'm stuck with the 4.0.3. I'm starting to face some problems with my device and I think this is because bugs in the 4.0.3, the device over heats while charging or when I have my wifi or 3G on. I downloaded the "AOKP MR1 Milestone 1 ROM for Galaxy S2 GT-i9100 (Exynos)" along with "Gapps" but didn't install them yet:
The only problem is that in order to install the new rom I have to flash my device and root it and I'm not really happy with that. Is there a safe way to get the jelly beans update 4.1.2 without rooting my device. I tried the over the air update but it said no updates found, I also tried kies and still no luck. What can I do to get the new update without having to erase everything on my device.
Also can I take a backup copy of my ROM in case I format "flash" my device for any reason. I want to take a complete backup of everything on my phone including the unrooted original firmware 4.0.3 that it came with so that even if I install any other rom I can flash it and get back with my original one, is this possible.
Please help, looking forward for your repiles
You didnt read at all did you :thumbdown:
andrewwright said:
You didnt read at all did you :thumbdown:
Click to expand...
Click to collapse
I'm actually very new to xda, I've been searching for about 4 days now and currently I'm reading other similar threats on xda. But I don't really know where or what to search for. All I want to do is update my phone without flashing it, also if it's possible to take a backup copy of my original firmware please reference me where to start. Didn't mean to bother or bug anyone here, it's just that I'm very new to this
No hard feelings
You need to root to bk up what you have now mate. 4.0.4 is the brick bug firmware not 4.0.3 . Do you want to root your phone.? Do you want to put a custom rom or Samsung rom on your phone?
Just go to sammobile.com firmware page.
--------------------------------
maybe iPhone is better for you
--------------------------------
andrewwright said:
You need to root to bk up what you have now mate. 4.0.4 is the brick bug firmware not 4.0.3 . Do you want to root your phone.? Do you want to put a custom rom or Samsung rom on your phone?
Click to expand...
Click to collapse
Thanks for your reply, how do I root my phone and after I root it what do I need to download to backup everything. I don't really prefer to have a custom rom on my device but I have no problem trying anything on at as long as I have a copy of the original firmware where I can restore it back.
theunderling said:
Just go to sammobile.com firmware page.
--------------------------------
maybe iPhone is better for you
--------------------------------
Click to expand...
Click to collapse
Thanks I'll check it out, what do I look for so I can make sure that it's compatible with my GT-I9100 device, or are they all compatible depending on which region I choose. Currently I'm in Egypt So whats the best firmware to download
Get whatever ROM you want.
Worst case, flash a new modem.
Sent from the little guy
Lsw is the new one. Uk base but as gastonw said it dont matter just download your modem you have now so you can restore it later "apriliam3 for them". To root get a dori ics kernel and flash that either with odin "tar" or in recovery "zip with sig" put on ext sd and update in stock recovery and that will give you root and cwm recovery when you have done that go back into recovery and do a nandroid bk up there. Get titanium back up in playstore and bk up your apps with. I link my contact's with google so they restore easily.
Just see chow to flash ROM's witch odin and choose ROM from Samsung development sub forum.
Thank you all for your replies,
I managed to root my device and advised by all of you, and I made backup using the cwm that was installed automatically after I successfully rooted it. In the backup folder that was created I noticed a file called "system.ext4.tar" is this the original android version that came with the phone because as I mentioned above I want to be on the safe side and have a backup of my original OS that came with the phone in case of anything went wrong then I can restore everything including the original current android version. Second step that I want to do is to flash my phone and install the jellybeans. I found two version version 4.1.2 which I know is compatible with the phone and version 4.2.2 but I'm not really sure if it's compatible or not. So what do you guys suggest I should install on my device
looking forward for your replies
Get ktool of play and bk up efs :thumbup: go with what you want 4.1.2 stock/custom or 4.2.2 custom. its up to you just make sure you flash right rom for your phone model
andrewwright said:
Get ktool of play and bk up efs :thumbup: go with what you want 4.1.2 stock/custom or 4.2.2 custom. its up to you just make sure you flash right rom for your phone model
Click to expand...
Click to collapse
Thanks for your reply could you guide me on how to flash with the right rom, still new to this
All the people that has helped, you thanked...none use guides :thumbup:
andrewwright said:
All the people that has helped, you thanked...none use guides :thumbup:
Click to expand...
Click to collapse
would you guide me on the right track i'll thank you as well
Dont want or need your thanks its polite to say thanks to some one who helps you. What do you want stock or custom. Dont ask me to pick.
andrewwright said:
Dont want or need your thanks its polite to say thanks to some one who helps you. What do you want stock or custom. Dont ask me to pick.
Click to expand...
Click to collapse
A special thanks goes to andrewwright I prefer stock but I don't have any problems trying custom since custom gives more features
If you would tell me how to do both I'll be more than happy. I think both are flashed in the same way but correct me if I'm wrong
For stock sammoblie.com.
For custom gooim playstore app. Have you rooted yet? Mr1 milestone is a good choice as is solid.
andrewwright said:
For stock sammoblie.com.
For custom gooim playstore app. Have you rooted yet? Mr1 milestone is a good choice as is solid.
Click to expand...
Click to collapse
Yes I've rooted my device, so which is the best, most solid custom version you mentioned milestone where do I download that from as well
Play store app called gooim donwload that. Has loads of Roms. Aokp jb milestone. Is stable. Solid

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