Develop Bugs

[Q] Messed with Bootloader, Need Help!

So, I rooted my S3 (was on 4.3 via OTA) and tried to install CM 10.1.3. When I tried to flash it, it gave me errors. I looked it up and found out that it had something to do with my bootloader.
I blindly flashed this firmware, hoping that it would fix the problem. Then, I read in the thread in I'm not suppose to flash this if I already have the 4.3 OTA update and I'm like "Oh crap... "
Sure enough, when I try to turn on my phone, it wouldn't boot. At this point, I know it's hard bricked.
I go ahead and follow directions from this thread and I've successfully got the phone to download mode, but what do I do now?
Is there a stock bootloader I can use through Odin?

You have to flash the 4.3 firmware through Odin if I'm not mistaken.. It's the only one, you can't downgrade it anymore
Sent from my SGH-T999 using Tapatalk

serio22 said:
You have to flash the 4.3 firmware through Odin if I'm not mistaken.. It's the only one, you can't downgrade it anymore
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
My phone is already on 4.3, but I'm not suppose to flash the UVDMD5 Firmware while on 4.3, causing the brick. I can boot into the phone, but I need the SD card when I do since it has the 4.3 debrick image I found here.
I read the thread and I'm unsure if there's a fix for this.

Daoiod said:
My phone is already on 4.3, but I'm not suppose to flash the UVDMD5 Firmware while on 4.3, causing the brick. I can boot into the phone, but I need the SD card when I do since it has the 4.3 debrick image I found here.
I read the thread and I'm unsure if there's a fix for this.
Click to expand...
Click to collapse
Yes I know, you have to flash the 4.3 firmware again to get out of the brick.. Try searching or asking in the unbrick thread, you'll probably get more help there
Sent from my SGH-T999 using Tapatalk

serio22 said:
Yes I know, you have to flash the 4.3 firmware again to get out of the brick.. Try searching or asking in the unbrick thread, you'll probably get more help there
Sent from my SGH-T999 using Tapatalk
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Click to collapse
Alright, I'll try flashing a 4.3 firmware. If I flash this ROM, could I downgrade to something below 4.3 and flash the UVDMD5 firmware/bootloader since the ROM is Knox-free?
EDIT: I tried flashing and it didn't fix the brick. Alright, I think I need to focus on one problem at a time.

Daoiod said:
Alright, I'll try flashing a 4.3 firmware. If I flash this ROM, could I downgrade to something below 4.3 and flash the UVDMD5 firmware/bootloader since the ROM is Knox-free?
Click to expand...
Click to collapse
That's a big no.. You'll end up back where you started.. But you can just flash a custom recovery and then flash any ROM.. I believe the error you were getting was because the bootloader wasn't recognized by the updater script for the ROM and that's why it was throwing errors.. Once you add it to the script, it should flash fine
Sent from my SGH-T999 using Tapatalk

At this point, I don't really care about trying to install CM. I just want unbrick it and get back to stock 4.3. I tried flashing a stock 4.3, but that doesn't fix the brick.
I think it's because flashing the stock ROM doesn't change the bootloader. Maybe if I could revert the bootloader to stock, maybe it'll unbrick it?

Go to the unbrick thread, there you will find the best help.. Real experts there
Sent from my SGH-T999 using Tapatalk

Just flash the 4.3 firmware (not a rom) via Odin. That's it.

DocHoliday77 said:
Just flash the 4.3 firmware (not a rom) via Odin. That's it.
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Click to collapse
Thanks Doc, that did the trick!
And thank you for the firmware/ROM clarification!

[Q] 4.3 Stock for Odin?

Hey guys,
I'm trying to go back to a stock Touchwiz ROM from CyanogenMod 10.2. My only problem is, I can't Odin back to a stock from because the only Odin compatible file I have is 4.1.1 which my phone will no longer go to since my baseband was updated after trying a former 4.3 ROM.
Can anyone link me to a 4.3 ROM that I can flash in Odin? I'm asking because most of the ROM's I'm finding that are 4.3 require you to be on a TW ROM before flashing their ROM. Thanks.

n_alvarez2007 said:
Hey guys,
I'm trying to go back to a stock Touchwiz ROM from CyanogenMod 10.2. My only problem is, I can't Odin back to a stock from because the only Odin compatible file I have is 4.1.1 which my phone will no longer go to since my baseband was updated after trying a former 4.3 ROM.
Can anyone link me to a 4.3 ROM that I can flash in Odin? I'm asking because most of the ROM's I'm finding that are 4.3 require you to be on a TW ROM before flashing their ROM. Thanks.
Click to expand...
Click to collapse
Go to http://www.sammobile.com/firmwares/and put in your phone info and download the stock file.

Satstalker said:
Go to http://www.sammobile.com/firmwares/and put in your phone info and download the stock file.
Click to expand...
Click to collapse
This link is useless for me as it does not have a 4.3 stock rom listed in their official firmwares. They have only up to 4.1.2 which I cannot Odin back to since my baseband was already updated.

n_alvarez2007 said:
This link is useless for me as it does not have a 4.3 stock rom listed in their official firmwares. They have only up to 4.1.2 which I cannot Odin back to since my baseband was already updated.
Click to expand...
Click to collapse
Maybe there is no update for your carrier yet! A thanks would be nice for trying to help you. But hey next time i wont even reply

|ROM|Bootloader|Kernel|Modem| AT&T Official 4.3 MJB |24 Nov 2013| There you go all stock. make sure you hit the thanks button for everyone (not my files I just found them)
You cant flash this in odin but can use TWRP or CWM. will get you back all stock. Good luck...

theramsey3 said:
|ROM|Bootloader|Kernel|Modem| AT&T Official 4.3 MJB |24 Nov 2013| There you go all stock. make sure you hit the thanks button for everyone (not my files I just found them)
You cant flash this in odin but can use TWRP or CWM. will get you back all stock. Good luck...
Click to expand...
Click to collapse
Do I have to be on a stock rom to use this? I'm currently on Quantum V3 and I don't have access to a stock rom to revert to since my baseband was updated.

n_alvarez2007 said:
Do I have to be on a stock rom to use this? I'm currently on Quantum V3 and I don't have access to a stock rom to revert to since my baseband was updated.
Click to expand...
Click to collapse
No you don't have to be on the stock rom to use that, but the bootloaders are for 4.3 so if you haven't updated yet this will update you.
You can flash any rom you want to as long as you do not mess with the bootloader you will be OK. I do not know if this work on anything besides an at&t phone using it on anything else is done so at your own risk just the same as using it.

What about the recovery? any way to get a stock recovery image?

Rollback from 4.3 to 4.12 or Earlier Stock ROM

Now that 4.3 stock ROM is out, has anyone developed a method to roll back to previous JB stock ROM's?
From what I read, once you update the bootloader, you cannot go back. But surely one of our great developers has/will come up with a method.
Thanks

OKAstro said:
Now that 4.3 stock ROM is out, has anyone developed a method to roll back to previous JB stock ROM's?
From what I read, once you update the bootloader, you cannot go back. But surely one of our great developers has/will come up with a method.
Thanks
Click to expand...
Click to collapse
Would like to know when this comes out too. From what I know it hasn't been done yet. I'm constantly advised to flash a 4.3 ROM if I want to go back to stock but the current 4.3 ROM is way too buggy.

OKAstro said:
Now that 4.3 stock ROM is out, has anyone developed a method to roll back to previous JB stock ROM's?
From what I read, once you update the bootloader, you cannot go back. But surely one of our great developers has/will come up with a method.
Thanks
Click to expand...
Click to collapse
You can flash any rom you like as long as it does not contain a BOOTLOADER for further clarification look here ---> http://forum.xda-developers.com/showpost.php?p=48211488&postcount=3

scotteb said:
You can flash any rom you like as long as it does not contain a BOOTLOADER for further clarification look here ---> http://forum.xda-developers.com/showpost.php?p=48211488&postcount=3
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Click to collapse
Thanks. So is the "not able to rollback" only related to the bootloader itself? And after upgrading to 4.3 with MJB bootloader, we can return to 4.12 as long as we don 't flash a 4.12 ROM with a bootloader?
Sorry for the questions, but for some reason my brain and the whole bootloader deal is a no-go

scotteb said:
You can flash any rom you like as long as it does not contain a BOOTLOADER for further clarification look here ---> http://forum.xda-developers.com/showpost.php?p=48211488&postcount=3
Click to expand...
Click to collapse
Can anybody confirm that if we are on 4.3 stock, and install CWM and non-stock ROM (CM, PA, etc.), will the warranty check flag change to 0x1 in download mode? Or will it remain at 0x0?

trini_vibezzz said:
Can anybody confirm that if we are on 4.3 stock, and install CWM and non-stock ROM (CM, PA, etc.), will the warranty check flag change to 0x1 in download mode? Or will it remain at 0x0?
Click to expand...
Click to collapse
It will trip the flag if you flash a recovery. If you're worried about it tripping, don't flash anything. Mine tripped rooting stock with CF-Root. Not a big deal though, only two months left on the contract.

OKAstro said:
Thanks. So is the "not able to rollback" only related to the bootloader itself? And after upgrading to 4.3 with MJB bootloader, we can return to 4.12 as long as we don 't flash a 4.12 ROM with a bootloader?
Sorry for the questions, but for some reason my brain and the whole bootloader deal is a no-go
Click to expand...
Click to collapse
You are correct!! no bootloader and your good to go!!

So...what does flashing the MJB bootloader provide that the MJ2 bootloader doesn't provide?

OKAstro said:
So...what does flashing the MJB bootloader provide that the MJ2 bootloader doesn't provide?
Click to expand...
Click to collapse
From what I have read wifi won't work without it.

I tried
I flash a 4.2.2 stock rom after OTA updating to 4.3 with a mobile odin. But the baseband and imei became unknown after I boot the phone. So I have to flash back to 4.3 again....LOL

I was able to flash to UCMG2 stock after what I will dub my 4.3 OTA fiasco lol I flashed it in TWRP using the download from this thread http://forum.xda-developers.com/showthread.php?t=2388065
I did not need to flash any other item as everything appears to be functioning well.

Downgrading?

I have Samsung Galaxy S III T999 that I had downgraded from 4.1.2 to 4.1.1 and I was able to unlock it through out by dialing and going to menu.
Every thing went ok and I was able to do it without any problem.
Few weeks after I restored my phone and some how by mistake I upgraded to 4.3
and now I can't downgraded my phone it keep giving me fail on odin.
I see so many how to downgrade and I tried it twice and keep failing without bricking my phone I was able to get back to my phone.
Is there any thing that allow me to downgrade or I have to wait for mods to come up with answers.
Thank you very much

You're lucky you didn't brick your device.. If you want to downgrade the only way to do it right now is to flash a custom recovery in Odin like twrp or cwm, and then flash a 4.1.x ROM
Sent from my SGH-M919 using Tapatalk

serio22 said:
You're lucky you didn't brick your device.. If you want to downgrade the only way to do it right now is to flash a custom recovery in Odin like twrp or cwm, and then flash a 4.1.x ROM
Sent from my SGH-M919 using Tapatalk
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Is that working now? I had thought you couldn't go back once you had upgraded to 4.3

TronMinecraft said:
Is that working now? I had thought you couldn't go back once you had upgraded to 4.3
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Click to collapse
You can go back and flash any 4.1.X ROM, just don't Odin any official 4.1.X firmware coz that will downgrade your bootloader and result in a a most probable brick.
Someone please correct me if I'm wrong....

I am on DN3 v5 I want to go back to stock.

How to go back to stock Android 4.3 from DN3 v5?
Can I just flash it using Odin?

manuel1992 said:
How to go back to stock Android 4.3 from DN3 v5?
Can I just flash it using Odin?
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Click to collapse
Are you on ND3 bootloader? If you are on ND3 bootloader I suggest you flash back 4.4 stock ROM, but not any Jelly Bean ROM else you will get softbricked because knoxed bootloader does not support downgrading.

It often helps to explain, why you want to do something. You'll get a fuller answer. But I suppose it's up to you. Refer to post 2.

soralz said:
Are you on ND3 bootloader? If you are on ND3 bootloader I suggest you flash back 4.4 stock ROM, but not any Jelly Bean ROM else you will get softbricked because knoxed bootloader does not support downgrading.
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Click to collapse
I have MK9 bootloader also I never messed with the bootloader I just installed DN3 with TWRP
EmptyArea said:
It often helps to explain, why you want to do something. You'll get a fuller answer. But I suppose it's up to you. Refer to post 2.
Click to expand...
Click to collapse
Well, I will install stock for now till a stable version of DN3 will be available