My s3 i747 come with 4.1.2 and the bootloader is locked, how unlock the bootloader?
i want downgrade to 4.1.1 but i can't, any idea how to make the downgrade?
Which phone? Carrier? You may be able to use Odin and firmware from samfirmware.com.
audit13 said:
Which phone? Carrier? You may be able to use Odin and firmware from samfirmware.com.
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Click to collapse
S3 I747 at&t, i can flash the firmware 4.1.1 although this blocked the bootloader?
From what I have done with my Canadian s3, which is an i747m, I can downgrade from 4.1.2 to 4.1.1 with no problem via Odin. The bootloader is not locked. As far as I know, the only bootloader the could be considered "locked" would be in the stock 4.3 ROM. Once your phone is on 4.3, you cannot downgrade the bootloader.
audit13 said:
From what I have done with my Canadian s3, which is an i747m, I can downgrade from 4.1.2 to 4.1.1 with no problem via Odin. The bootloader is not locked. As far as I know, the only bootloader the could be considered "locked" would be in the stock 4.3 ROM. Once your phone is on 4.3, you cannot downgrade the bootloader.
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Click to collapse
look the pics
Did you try to downgrade with Odin?
audit13 said:
Did you try to downgrade with Odin?
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Click to collapse
maybe brick or not?
You won't brick. I've downgraded several times. You're most likely to brick with 4.3, and not 4.1.2, 4.1.1, or 4.0.4.
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app
edj809 said:
look the pics
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Click to collapse
My download screen says the same thing and I'm on stock 4.1.2.
shortydoggg said:
You won't brick. I've downgraded several times. You're most likely to brick with 4.3, and not 4.1.2, 4.1.1, or 4.0.4.
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
audit13 said:
My download screen says the same thing and I'm on stock 4.1.2.
Click to expand...
Click to collapse
Thanks, I did the downgrade without any problems and now I'll try to flash a custom rom, even though I still see that the bootloader is still enabled using the 4.1.1
edj809 said:
Thanks, I did the downgrade without any problems and now I'll try to flash a custom rom, even though I still see that the bootloader is still enabled using the 4.1.1
Click to expand...
Click to collapse
Since you're on 4.1.1, you should unlock your phone using the free method here: http://forum.xda-developers.com/showthread.php?t=2529200
Then use Odin to go back to 4.1.2, install Philz, wipe, and then flash your ROM. You can only use the free method when you are running stock 4.1.1.
It will always say enabled on stock.
You cannot Odin back to 4.1.2, and probably not OTA either. You can only sideload an update.zip through adb or flash a 4.1.2 Rom.
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app
audit13 said:
Since you're on 4.1.1, you should unlock your phone using the free method here: http://forum.xda-developers.com/showthread.php?t=2529200
Then use Odin to go back to 4.1.2, install Philz, wipe, and then flash your ROM. You can only use the free method when you are running stock 4.1.1.
It will always say enabled on stock.
Click to expand...
Click to collapse
-- Thanks
shortydoggg said:
You cannot Odin back to 4.1.2, and probably not OTA either. You can only sideload an update.zip through adb or flash a 4.1.2 Rom.
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app
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Click to collapse
I upgrade to 4.1.2 from adb with update.zip, thanks.
Because everytime I flash a rom, everytime I'm doing a call the screen goes black and can't do anything, I flashed 3 roms (AOSP, MIUI and AOSB) y the three of them gave me the same problems. I heard that I needed to update the Bootloader but I want to be 100% sure before doing it
edj809 said:
Because everytime I flash a rom, everytime I'm doing a call the screen goes black and can't do anything, I flashed 3 roms (AOSP, MIUI and AOSB) y the three of them gave me the same problems. I heard that I needed to update the Bootloader but I want to be 100% sure before doing it
Click to expand...
Click to collapse
Did you edit the updater script in the custom ROMs to get them to install? If you didn't have to edit the scripts and the ROM installed, your bootloader supports the ROM.
Did this happen when you were on stock a ROM? I have tried Validus and Cyanfox and never has this issue. I was using the 4.1.2 bootloader with each ROM.
Related
I need to give my AT&T S3 to my Mom. Is there a way I can have my phone return to stock condition (no root,stock recovery,data wiped) on the 4.3 OTA? Thanks in advance for any assistance.
abcman787 said:
I need to give my AT&T S3 to my Mom. Is there a way I can have my phone return to stock condition (no root,stock recovery,data wiped) on the 4.3 OTA? Thanks in advance for any assistance.
Click to expand...
Click to collapse
Flash the 4.3 firmware through odin.
Sent from my SGH-I747M using Tapatalk
Florad77 said:
Flash the 4.3 firmware through odin.
Sent from my SGH-I747M using Tapatalk
Click to expand...
Click to collapse
there is none
abcman787 said:
I need to give my AT&T S3 to my Mom. Is there a way I can have my phone return to stock condition (no root,stock recovery,data wiped) on the 4.3 OTA? Thanks in advance for any assistance.
Click to expand...
Click to collapse
If you are already on TW either 4.1.1 or 4.3 then just ODIN back the 4.3 update.
http://forum.xda-developers.com/showthread.php?t=2498233
Will this work if I'm not on stock
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
polobunny said:
If you are already on TW either 4.1.1 or 4.3 then just ODIN back the 4.3 update.
http://forum.xda-developers.com/showthread.php?t=2498233
Click to expand...
Click to collapse
You can only Odin 4.3 on an I747M if you're on AT&T with an I747 there is no .tar.md5 yet thus no Odin and there is no flashing backwards. If you try to overwrite the bootloaders with an older version you get a hard brick. When you try to flash an older firmware let's say 4.0.1 for example it will contain bootloaders, a kernel, a rom and a modem and it will hard brick the phone.
The thread you linked is for a 4.3 leak and runs mj2 bootloaders which is older than his current version of MJB. Also the thread you linked doesn't have any odin flashable files in it. Those are .Zip files flashable through a custom recovery such as TWRP or CWM.
This could have been really bad for someone if they even tried what you linked. Locally it takes 2-4 days and $50.00 to get a phone Jtag'ed.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
How can I unroot my samsung galaxy s3 AT&T phone that is running 4.3 stock mod rom
Depending on what bootloader you have it might be possible through mobile Odin. I would double check before doing anything. I was able to do so recently via mobile odin. I downloaded the stock firmware which you will find on these forums and flashed.
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app
I took the 4.3 ota so I am on the newest update
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
so did it owkr
rkant18 said:
I took the 4.3 ota so I am on the newest update
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Click to collapse
so did it work finally?
you where on stock 4.3 if I understand correctly whit Knox and the you flashed the stock 4.3 trought odin and it work?
Of course it didn't work, because there is no stock 4.3 to flash though Odin. AT&T never released the firmware.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
shortydoggg said:
Of course it didn't work, because there is no stock 4.3 to flash though Odin. AT&T never released the firmware.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
but on sammobile therse att 4.3 stock rom .... i was wondering about that because my phone is rooted on 4.3 and i whant to unroot it and put back 4.3 unrooted. so i was searching for a way to do it
Under the AT&T s3 on sammobile.com, I only see this: http://www.sammobile.com/firmwares/1/?model=SGH-I747&pcode=ATT#firmware
audit13 said:
Under the AT&T s3 on sammobile.com, I only see this
oups..! sorry i forgot to tell you that my phone model is i747M (whit the M at the end im whit rogers )
and it does have 4.3 for rogers
im new so i cant provide link.. but please look select samsung s3 from Canadian (rogers) shg-i747M
will it work if i unroot my phone using odin and flash 4.3? (i am on rooted 4.3 now)
thanks for helping me out
Click to expand...
Click to collapse
killer0123 said:
audit13 said:
Under the AT&T s3 on sammobile.com, I only see this
oups..! sorry i forgot to tell you that my phone model is i747M (whit the M at the end im whit rogers )
and it does have 4.3 for rogers
im new so i cant provide link.. but please look select samsung s3 from Canadian (rogers) shg-i747M
will it work if i unroot my phone using odin and flash 4.3? (i am on rooted 4.3 now)
thanks for helping me out
Click to expand...
Click to collapse
Is this your phone?
http://www.sammobile.com/firmwares/1/?model=SGH-I747M&pcode=RWC#firmware
Click to expand...
Click to collapse
audit13 said:
killer0123 said:
Is this your phone?
yes it is!.
So will it work if i unroot it by flashing stock 4.3?
Will it brick my phone?
Click to expand...
Click to collapse
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Click to collapse
audit13 said:
killer0123 said:
Is this your phone?
I founded the way to unroot my phone.
I plugged my phone into download mode in my pc
i open up kies 3
i click on tools and firmeware update and inisialization
i entered my phone model : SGH-I747M
i entered my phone S/N
And kies automaticly restaure my phone back to its original state (but whit upfate whit 4.3)
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Hey guys so i have heard that if i install the old firmware for my s4 from sammobile using Odin one from early 2013 that it will give me access to service menu so that i can unlock my phone. So my question is that is it 100% safe to Odin flash the older 4.2.2 rom when i am on 4.3? Can i flash it unlock my phone then upgrade my phone to a custom rom again? Thank you i also am running a custom rom and have philz recovery installed.
Sent from my SGH-M919V using xda app-developers app
If you are on 4.2.2 bootloader then yes, if on 4.3 bootloader then no, but you can try downgrading modems instead.. Also is the ROM you are on aosp/cm or tw based?
Sent from my SGH-M919 using Tapatalk
zee24 said:
Hey guys so i have heard that if i install the old firmware for my s4 from sammobile using Odin one from early 2013 that it will give me access to service menu so that i can unlock my phone. So my question is that is it 100% safe to Odin flash the older 4.2.2 rom when i am on 4.3? Can i flash it unlock my phone then upgrade my phone to a custom rom again? Thank you i also am running a custom rom and have philz recovery installed.
Sent from my SGH-M919V using xda app-developers app
Click to expand...
Click to collapse
If you update to 4.3 by one of the following methods you're out of luck:
-OTA update
-Kies update
-Odin flash the full 4.3 firmware.
Like mentioned above, if you only flashed a 4.3 ROM but keep your MDL(4.2.2) bootloader you can go back.
Faaaaaaaaaaakkkkkkkkk i did Odin flash the full 4.3 Damnit stupid Samsung why the hell would they block downgrading? Okay so if i did try to Odin flash the older firmware what would happen? I doubt it'll hard brick my phone right i could prob try it if it doesn't work then I'll just Odin flash 4.3
zee24 said:
Faaaaaaaaaaakkkkkkkkk i did Odin flash the full 4.3 Damnit stupid Samsung why the hell would they block downgrading? Okay so if i did try to Odin flash the older firmware what would happen? I doubt it'll hard brick my phone right i could prob try it if it doesn't work then I'll just Odin flash 4.3
Click to expand...
Click to collapse
You'll be wasting your time
Sent from my SGH-M919 using Tapatalk
Hello all...
I have a note 2 with stock firmware android 4.3, and unfortunately with knox, I did root, with chainfire auto root and does not work superSu!!!
It do not has root acces!!!
does anyone know what I need to do, please?
I would like to know if I can unroot and install stock firmware with android 4.1.2 I do not have any issue?
I will be waiting for your help, thanks
I know that you are very busy, but can anyone help me with this, please?
Is my question in wrong place?
Do you have access to custom recovery. If so flash a custom 4.3 rom. Ill recommend the s.w.a.r.m rom
If not ill google how to downgrade to 4.1.2 or google how to get rid of knox
If you want to stay stock flash Mr Robinsons rom, it is stock, rooted and Knox-free.
Sent from my SGH-T889 using xda app-developers app
ciphercodes said:
If you want to stay stock flash Mr Robinsons rom, it is stock, rooted and Knox-free.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
How is Mr Robinsons rom on your phone???
ce321 said:
How is Mr Robinsons rom on your phone???
Click to expand...
Click to collapse
My phone is stock rooted but not on Mr Robinson's. Performance wise it should be same or better than stock ROM since it's the stock ROM.
ciphercodes said:
If you want to stay stock flash Mr Robinsons rom, it is stock, rooted and Knox-free.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Thank you for your answer, the issue is that it do not has any root access!
Can I downgrade of 4.3 to 4.1.2?
MCASTILLO said:
Thank you for your answer, the issue is that it do not has any root access!
Can I downgrade of 4.3 to 4.1.2?
Click to expand...
Click to collapse
Are you saying the MrRobinson's ROM isn't rooted ? Did you try the version 2 he posted ? I know that the first one had some issues.
If you are on 4.1.2 and only use PC odin for flashing then you can flash this stock rooted, knox-free ROM I uploaded here.
http://forum.xda-developers.com/showthread.php?t=2636552
This ROM will not update your bootloader and you can switch back to 4.1.2 using PC odin.
ciphercodes said:
Are you saying the MrRobinson's ROM isn't rooted ? Did you try the version 2 he posted ? I know that the first one had some issues.
If you are on 4.1.2 and only use PC odin for flashing then you can flash this stock rooted, knox-free ROM I uploaded here.
http://forum.xda-developers.com/showthread.php?t=2636552
This ROM will not update your bootloader and you can switch back to 4.1.2 using PC odin.
Click to expand...
Click to collapse
You do not understand me, right now it has 4.3 stock Rom with Knox, and I did root with chainfire auto-root, but does not work!
It do not has any root access, is impossible flash custom recovery.
Can I unroot, and install via Odin stock firmware 4.1.2, it has any issue?
I appreciated your help.
No problem,
You can install Mr Robinsons root 66 rom, make sure you download the v2 version and you will be all set.
Sent from my SGH-T889 using xda app-developers app
ciphercodes said:
No problem,
You can install Mr Robinsons root 66 rom, make sure you download the v2 version and you will be all set.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
But, Can I flash anhoter Rom?
If I downgrade via Odin, with stock firmware, android 4.1.2. Can I?
Because I would like to flash some cm Rom.
Your phone is already on 4.3 bootloader and there is no way to downgrade that.
But you can still flash any 4.1.2 ROM'S as long as you do not flash the bootloader. Almost all custom ROM's come without bootloader so you should be able to flash them via CWM,TWRP or mobile din.
Sent from my SGH-T889 using xda app-developers app
Is it possible to downgrade back to 4.3?
I tried flashing the 4.3 firmware with Odin but it gave a failed message. I also tried flashing a 4.3 ROM but that just sent me into a bootloop. Hado to flash 4.4.2 with Odin to fix that.
I heard it's something about the bootloader that prevents downgrading.
Any ideas?
Not possible atm, maybe sometime later but quite possibly never.
Sent from my SM-N900T using xda premium
d12unk13astard said:
Not possible atm, maybe sometime later but quite possibly never.
Sent from my SM-N900T using xda premium
Click to expand...
Click to collapse
is it possible via custom recovery? go back to a custom 4.3 rom? if you are on the 4.4 bootloader?
nofroyo said:
is it possible via custom recovery? go back to a custom 4.3 rom? if you are on the 4.4 bootloader?
Click to expand...
Click to collapse
NO, once you have the 4.4 bootloader, you can NOT go back to 4.3 ROM's. At least not yet...
There's some hope downgrading here: http://forum.xda-developers.com/showpost.php?p=51844662&postcount=4
I haven't tested it, so you might want to contact him for details.