Restore to stock firmware. - Galaxy S II Q&A, Help & Troubleshooting

Guys,
I know that theres a lot of topics about this over the forum, but I couldnt find one that is up to date.
Im running the remix rom 1.7 and Id like to restore my phone to factory state.
Could someone direct me to the best way to do this?
Thanks in advance
Sent from my GT-I9100 using XDA

That depends on whether you just want the stock rom to use it or to send it in for repairs.
If you just want a stock rom to use: Just flash a stock firmware with Odin and there you go.
If you need a S2 in its "original state":
1.) Flash an older bootloader and use a USB-Jig (see the USB-Jig thread about that) to set the Custom Rom Counter back (oh I forgot: There's also the possibility to use the "Triangle away"-app instead of a Jig)
2.) Flash a "full" (Pit File, PDA, CSC and Phone) stock firmware with Odin

wesley.mrocha said:
Guys,
I know that theres a lot of topics about this over the forum, but I couldnt find one that is up to date.
Im running the remix rom 1.7 and Id like to restore my phone to factory state.
Could someone direct me to the best way to do this?
Thanks in advance
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Go to sammobile.com,
Download a stock ROM closest to that of the OS you want (GB, ICS),
Put file in PDA section of Odin,
Flash ROM,
If your custom binary counter is not zero, buy a USB Jig off eBay for like £2,
Your done.
Chris.

themadba said:
Go to sammobile.com,
Download a stock ROM closest to that of the OS you want (GB, ICS),
Put file in PDA section of Odin,
Flash ROM,
If your custom binary counter is not zero, buy a USB Jig off eBay for like £2,
Your done.
Chris.
Click to expand...
Click to collapse
Thanks a lot!
Sent from my GT-I9100 using XDA

Related

[Q] About CF-Root

Hi there.
I have asked the same question several times in Chains thread now but had no replies from anyone for some reason, so thought I'd ask here instead.
Basically, I want to root my phone but keep the stock rom and have clockworkmod recovery so I can flash a new rom (MIUI when it's stable), but not too sure what to do. After speaking to samjpullen he pointed me in the direction of Chains thread. For what I want, is this the right thing to do?
If so, I already downloaded the Odin thingy. But I need a .tar file which I think must be the CF-root downloads further down in the thread. If so which one do I need? And is there anything more I need from there?
Sorry for the long question, just want to be safe doing this. Thanks in advance.
In phone type *#1234#, note the last 3 characters from each line (they will all be the same). Use odin to flash the same file from Chains thread.
Sent from my GT-I9100 using XDA Premium App
Pick one to match your firmware and region .
Flash through Odin as PDA only .
You now have stock rom with non stock rooted Kernel and CWM .
jje
So after I have entered that into the dialer, do I use the last 3 characters of the PDA one for the cf-root download? KE2?
Yep KE2 root .
jje
Thanks a lot!
What are the consequences of flashing the wrong .tar file?
edit: nevermind, I went ahead and did it anyway. I don't know why I worried so much, it was so easy and done in a few minutes.
I want to use the Cognition Rom and its based on KE7. My phone is KE2. Can I flash the KE7 kernel from CF-Root and then flash the Cognition Rom?
Sent from my GT-P7510 using XDA Premium App

[Q] How To Save/BackUp S2 Stock Firmware before Rooting to Preserve Warranty

Hi All!!
(I am Sorry if there has been a thread like this before ,i am new to Android just need to ask some questions for my Galaxy S2 which i recently bought)
Phone Details
Samsung Galaxy S2(Hong Kong)
Android 2.3.5
Baseband I9100XXKI3
Kernel 2.6.35.7-I9100ZSKI3
Build GINGERBREAD.ZSKI3
Question 1
My phone is in Warranty i have been iOS user and like Jailbreak i want to enjoy Andriod by rooting my phone
But i want to backup the stock firmware completly before all this process so if i wanted to reverse process ,or get my phone back to its old state like it came(ZSKI3 SAME KERNEL AND EVERY THING REST)
please suggest me any backup tool like that
Question 2
i want to root my phone in stock firmware,i like touchwiz and every thing that came stock but having root access so i can get any thing i want so please suggest me the best firmware for S2
I will be really thankfull for you responce,and please if i made some mistakes above i am sorry again i am new here
1-root with cf-root for you firmware using Odin.
2-boot into recovery and do a cwm backup or use the cwm app that installs with cf root to do the same.
3-if you want to go back to stock flash the original kernal using Odin and use a download mode jig to reset counter to hide flashing.
4-if you use a custom rom restore backup then do the above step.
You can find plenty of how-to's on any if the above points on this forum or by Googling it.
Sent from my GT-I9100 using xda premium
And or look for your stock/branded rom download in the development section .
jje
sxi200 said:
1-root with cf-root for you firmware using Odin.
2-boot into recovery and do a cwm backup or use the cwm app that installs with cf root to do the same.
3-if you want to go back to stock flash the original kernal using Odin and use a download mode jig to reset counter to hide flashing.
4-if you use a custom rom restore backup then do the above step.
You can find plenty of how-to's on any if the above points on this forum or by Googling it.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Thanks Mate
JJEgan said:
And or look for your stock/branded rom download in the development section .
jje
Click to expand...
Click to collapse
Thanks Mate
I dont understand Step 3
3-if you want to go back to stock flash the original kernal using Odin and use a download mode jig to reset counter to hide flashing.
crossmedia said:
I dont understand Step 3
3-if you want to go back to stock flash the original kernal using Odin and use a download mode jig to reset counter to hide flashing.
Click to expand...
Click to collapse
Ok. To flash the original kernal you will need to get it from the intratech thread. He had them all I think. This will remove the custom kernal and, assuming you are still on stock firmware everything is stock again.
As for the jig, when you flash a non stock kernal, there is a counter which shows when you go into download mode. Samsung put this in to see if you had flashed anything if you return it for warranty. The jig plugs into the phones USB/charging port and clears it so Samsung knows ****. I bought one off eBay for $2 delivered.
Sent from my GT-I9100 using xda premium
Oh i Got it,the phone seller has send me that little micro-usb device with it Thanks
what about HTC?
Whoull this work on a HTC Desire Z (G2) as well?
Why are you asking in an SGS2 forum ? You need to ask here.
darthchile said:
Whoull this work on a HTC Desire Z (G2) as well?
Click to expand...
Click to collapse

Unrooting my sg2

Hi all,
I have had a look around with limited luck as to how to UN root my device. I wish to return it to stock including resetting the counter if possible.
As I say, I have looked but thats not to say a thread doesn't already exist. If so sorry, I simply couldn't find it. Any assistance regarding this would be appreciated so much.
Thanks in advance.
Sent from my GT-I9100T using XDA App
Just flash a stock rom using odin.
http://forum.xda-developers.com/showthread.php?t=1075278
You'll probably need a usb jig to reset counter.
just flash your official stock rom and you will be UN rooted
As for the counter, you will need a USB Jig
Give me additional details of which rom you have (I mean which stock version). Then I can tell you where to get the stock rom
I am currently running the stick original ROM with a rooted kernal. But in any case what details do you require? Its a telstra sg2 running 2.3.3
Sent from my GT-I9100T using XDA App
Here, bout 3/4 of a page down. Flash this, then use Kies to see if there's any more recent OTA firmware updates available.
THanks guys,
very much appreciated. The phone is now "unrooted" and I am currently waiting on a Jig to reset the device to standard.
Thanks again

Phone not booting up

Hi,
I have a problem. I did a factory data reset and and phone is not booting more than Samsung Galaxy S II i9100 screen after that phone shuts off. I can get to Download Mode and from here I need further directions what to do.
Thanks.
Fox05 said:
Hi,
I have a problem. I did a factory data reset and and phone is not booting more than Samsung Galaxy S II i9100 screen after that phone shuts off. I can get to Download Mode and from here I need further directions what to do.
Thanks.
Click to expand...
Click to collapse
Search the forum for the answer this is a common problem. You will need Odin. Since you have bricked your phone install a custom Rom and Kernel. You will not go back to stock!!
Originally Posted by Fox05
Hi,
I have a problem. I did a factory data reset and and phone is not booting more than Samsung Galaxy S II i9100 screen after that phone shuts off. I can get to Download Mode and from here I need further directions what to do.
Thanks.
Click to expand...
Click to collapse
Search the forum for the answer this is a common problem. You will need Odin. Since you have bricked your phone install a custom Rom and Kernel. You will not go back to stock!!
Click to expand...
Click to collapse
Ok, but I wanted to know if I have to flash one file ROM or 3 file ROM?
bahmonkeys said:
Search the forum for the answer this is a common problem. You will need Odin. Since you have bricked your phone install a custom Rom and Kernel. You will not go back to stock!!
Click to expand...
Click to collapse
Ok, but I wanted to know if I have to flash one file ROM or 3 file from?
Fox05 said:
Ok, but I wanted to know if I have to flash one file ROM or 3 file from?
Click to expand...
Click to collapse
Well im guessing your phone is not backed up!? What do you want to do stay on a stock Rom or Custom Rom?
Fox05 said:
Ok, but I wanted to know if I have to flash one file ROM or 3 file from?
Click to expand...
Click to collapse
I have attached the odin file for you
What firmware was you using when this happened. You've sounds like it's recoverable. If download mode is all you can get your probably get best results by downloading official firmware from Sam firmware and extracting it then flashing the zip file in odin via PDA section. All the best.
Sent from my GT-I9100 using xda premium
HANDSY said:
What firmware was you using when this happened. You've sounds like it's recoverable. If download mode is all you can get your probably get best results by downloading official firmware from Sam firmware and extracting it then flashing the zip file in odin via PDA section. All the best.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I don't remember exactly my firmware but it was 4.0.3 and I haven't installed 4.0.4 but I did have CM10 just before I did restore from CWM and now I did factory data reset, this happened.
I prefer stock ROM, but I don't mind custom ROM either as long as I can get back to stock ROM
Fox05 said:
I don't remember exactly my firmware but it was 4.0.3 and I haven't installed 4.0.4 but I did have CM10 just before I did restore from CWM and now I did factory data reset, this happened.
I prefer stock ROM but I don't mind custom ROM either as long as I can get back to stock ROM
Click to expand...
Click to collapse
Flash a stock Rom via Odin. Wait till your phone boots up. Go back to Odin install a custom kernel (i recommend siyah kernel). Backup your stock Rom, then install a custom Rom. There is a lot of tutorials to tell you exactly how to do this process. If you need help at any point of this process just send me a message and I will give you a detailed walkthrough. You should be fine though!!
Goodluck
bahmonkeys said:
Flash a stock Rom via Odin. Wait till your phone boots up. Go back to Odin install a custom kernel (i recommend siyah kernel). Backup your stock Rom, then install a custom Rom. There is a lot of tutorials to tell you exactly how to do this process. If you need help at any point of this process just send me a message and I will give you a detailed walkthrough. You should be fine though!!
Goodluck
Click to expand...
Click to collapse
Before I did have Siyah Kernel, but it was older version. Do you have any suggestions which firmware I should flash?
If you want stock then take your pick from stock firmware at samfirmware. Aviod the ones with the red warning triangles, risk of brick bug!
Sent from my GT-I9100 using xda premium
HANDSY said:
If you want stock then take your pick from stock firmware at samfirmware. Aviod the ones with the red warning triangles, risk of brick bug!
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
How about from the intratech's thread? And is the Odin flash failing risk big with the situation I have right now?
I've used odin A LOT and never had a problem. I only ever use the PDA section and never touch anything else because I don't understand it. I can't comment on intratechs thread as I've never used his software. Any custom ROMs are normally flashed via CWM.
Sent from my GT-I9100 using xda premium
HANDSY said:
I've used odin A LOT and never had a problem. I only ever use the PDA section and never touch anything else because I don't understand it. I can't comment on intratechs thread as I've never used his software. Any custom ROMs are normally flashed via CWM.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I have used Odin too and I have only used intratech's ROMs. But nothing ever has happened like my phone's not booting up so I'm little more nervous. But thanks I'll try.
Thanks all! I got it working

[Q] The easiest way to flash stock

Hi all,
I want to be sure here for obvious reasons, i had a rooted s3 with custom rom/firmware, which i then used triangle, went back to stock and unrooted. However the firmware i installed isnt what i wanted, i read that the firmware with xx in it was for uk use but it seems to be primarily for israil as it has jewish as its default language and a jewish calender installed as default. So i have now downloaded which i hope is a tmobile uk firmware 19300xxella_i9300t from sammy. will i need to root again then install this with odin then reset counter then unroot and will this download cover the rom and firmware as im never to sure the firmware (screen entered when holding volume up, power button and middle button is now official stock. but not sure if this will allow me to install the official?
is theis file 19300xxella_i9300t the rom or firmware im now confused
You dont have to root to flash stock rom. You might need to reset your S3 though..
Sent from my GT-I9300 using xda app-developers app
Just download the stock rom that you want (e.g. from sammobile.com) and flash it via Odin. Afterwards do a factory reset and you should be good to go. No root required.
Follow the flashing via Odin section of the guide
http://forum.xda-developers.com/showthread.php?p=26530736
Sent from my GT-I9300 using Tapatalk 2
chrismast said:
Just download the stock rom that you want (e.g. from sammobile.com) and flash it via Odin. Afterwards do a factory reset and you should be good to go. No root required.
Click to expand...
Click to collapse
that's excellent. thanks guys
One thing i dont understand though. Are the firmwares listed on sammobile.com the roms i need, because there are no roms listed just firmware and this is what keeps confusing me
fatfei said:
that's excellent. thanks guys
One thing i dont understand though. Are the firmwares listed on sammobile.com the roms i need, because there are no roms listed just firmware and this is what keeps confusing me
Click to expand...
Click to collapse
Firmware means the full firmware and operating system and modem.
Rom is just a word used to describe a firmware file .
Stock rom stock firmware the same .
jje
JJEgan said:
Firmware means the full firmware and operating system and modem.
Rom is just a word used to describe a firmware file .
Stock rom stock firmware the same .
jje
Click to expand...
Click to collapse
Thanks for clearing that up. I think where ive read on various websites and forums these terms used incorrectly it threw me out. Thanks for clarifying that.

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