Develop Bugs

[Q] Trouble to upgrade bootloader from MK5 to MJB to NE4

I've been serching for an answer for a while and can't seem to find a proper one that makes sure that I won't brick my phone. I've been flashing roms since 2011 and know pretty much the drill but lately I've been flashing at a couple months interval CM11 m builds and since I don't follow the threads like I used to, I feel like I'm missing out on how to do the right procedure.
So this is my phone:
Rogers i747 SG3
Cm11 4.4.4
Bootloader: I747MVLUEMK5
Baseband: I747MUMUEND3
I've installed these about a month and a half ago and since I've lost LTE networking but I didn't care to try to fix since I don't use it that much and left it like that.
This morning, I tried flashing MJB bootloader and modem zip in recovery but it gives me the classic error 7
Any Idea how to get out of this impasse? I've been searching all morning and can't find what I'm looking for...

I see you're in Montreal. Do you have the AT&T version of the s3; i.e. i747?
Your bootloader (MJB - 4.3 AT&T) and modem (ND3 - Telcel) appear to be mismatched. Maybe this is causing the loss of LTE connections.
What recovery are you using? Is it up to date?

audit13 said:
What recovery are you using? Is it up to date?
Click to expand...
Click to collapse
I use Clockworkmod recovery 6.0.4.7 The latest version and Its an at&t i747 phone but with Rogers(same thing).
Is there other basebands or bootloaders I can maybe update with?

Sorry, I made a mistake. Your bootloader matches the modem for am i747m from here: http://forum.xda-developers.com/showthread.php?t=1831898
Boot into download mode and look at the model number at the top.

Cool yeah it is a i747m you're right.
Once I install the latest (canadian) firmware, does that give me the possibility to flash mjb and the Ne4 to have access to the latest cm roms without any trouble? Not sure if i understand everything here...

Do not flash any firmware not specifically designed for the i747m. The mjb bootloader is for the i747 and flashing that on your phone would probably brick it.

audit13 said:
Do not flash any firmware not specifically designed for the i747m. The mjb bootloader is for the i747 and flashing that on your phone would probably brick it.
Click to expand...
Click to collapse
Well thanks for the link. I updated my firmware and played with the apn and now the LTE works again and hitting an 80 mb download... pretty crazy.
So are you saying that a i747m would not be able to flash cm12(lollipop) which states in the nightly thread that it needs a NE4 bootloader/modem?!

You can determine which bootloaders are supported by CM12 by downloading CM12 and looking at the updater script in Notepad. The first few lines will list the supported bootloaders.
The latest stock firmware for the i747m can be found at sammobile.com. This firmware is flashable in Odin and would include the bootloader, modem, and the dreaded Knox.

reverting to 4.1.1

i have the s3 att on a 4.4.4 CROM. the baseband says ...LK3. can i use any guide using odin to go back to 4.1.1 stock unrooted and then use OTA updates to get the latest baseband/bootloader/modem? just want to make sure before i do it. i hear this is the safest way and i want to make sure i have met the requirements before i do it so i dont end up having a brick! (not sure if it matters but i have never used OTA updates before)
thanks in advance.

Is your bootloader also the lk3? If the modem and bootloader are lk3, you can use Odin to flash back to stock using firmware from sammobile.com.

Ok, I'm on a similar boat. I tried several AOSP based ROMs, and while I like most of them a lot more than stock touchwiz, they all present the same problems:
- Camera stops working sometimes and I have to reboot device;
- Camera won't record videos in 1080p, even when it's selected in the settings;
- Cannot make video calls on Skype longer than 5 seconds before the call drops;
- Disconnecting a bluetooth media device while music is streaming causes sounds to stop working;
- Tap to pay doesn't work at all;
So because of these problems, I want to go back to stock . My phone is the AT&T version. Currently I'm running Carbon Rom with KitKat 444. The baseband version is I747UCUFNJ1. The latest version of the stock ROM available on sammobile is:
Version: Android 4.1.1
PDA: I747UCDLK3
CSC: I747ATTDLK3
MODEM: I747UCDLK3
Would I be able to revert my phone back to stock with Odin? If not, what would I have to do to revert? Am I stuck with custom ROMs?
I'm pretty new to this so I'd appreciate anybody's help.

If your bootloader and modem is the lk3, you should be able to Odin back to stock 4.1.1.

Ok, how do I find out if they are? And if they are not, do I have any other options?

Download and install the Samsung Info App from the Playstore. Report back here with your bootloader and modem.

audit13 said:
Download and install the Samsung Info App from the Playstore. Report back here with your bootloader and modem.
Click to expand...
Click to collapse
Ok, according to the Phone INFO *Samsung* app:
Baseband Version:
I747UCUFNJ1
Bootloader Version:
I747UCUFNJ1
There was no other modem info reported besides this
Modem Board:
MSM8960

someone correct me if i'm wrong.you cannot downgrade bootloader or it will brick. there is no stock rom for NJ1. this link will take you to a stock based 4.4.2 ROM which is safe to flash with the NJ1 bootloader/modem.
http://forum.xda-developers.com/showthread.php?t=2848080
"all i can really do , is stay out of my own way and let the will of heaven be done"

mrrocketdog said:
someone correct me if i'm wrong.you cannot downgrade bootloader or it will brick. there is no stock rom for NJ1. this link will take you to a stock based 4.4.2 ROM which is safe to flash with the NJ1 bootloader/modem.
http://forum.xda-developers.com/showthread.php?t=2848080
Click to expand...
Click to collapse
Well, that's a bummer if I can't restore stock rom to the phone. So there is absolutely no way of safely downgrading the booatloader?

nope. it will brick your phone if you try to downgrade your bootloader.
"all i can really do , is stay out of my own way and let the will of heaven be done"

Have you tried CM-11-based or TW-based ROMs?

mrrocketdog said:
someone correct me if i'm wrong.you cannot downgrade bootloader or it will brick. there is no stock rom for NJ1. this link will take you to a stock based 4.4.2 ROM which is safe to flash with the NJ1 bootloader/modem.
http://forum.xda-developers.com/showthread.php?t=2848080
Click to expand...
Click to collapse
I tried to push that ROM the phone using adb to flash it with ClockWorkMod, but the file is 1.7 GB and the phone always shuts itself down during the push process... So I wasn't able to try that. Also, the instructions say you're supposed to be on UCUFNE4. Are you sure it's safe to flash it on I747UCUFNJ1?
audit13 said:
Have you tried CM-11-based or TW-based ROMs?
Click to expand...
Click to collapse
I have tried CM11 and Carbon ROM, which is CM based, both have all the same problems. I haven't tried TW-based ROMS. Do you have any suggestions?

What do you mean by the phone shuts down? Did you try copying the ROM to a microSD card?
Did you notice any bootloader or modem files in the S3Rx 4.0 (11-9-14) ROM? It may not include a modem or bootloader. In step 1 of the flash process, it says "AT&T I747 users should update bootloaders and modem to NE4 http://forum.xda-developers.com/gala...pdate-t2808654 I747M and T999 users need to be on 4.3 firmware or ROM will not boot. "

the link i posted is TW. post #1306 claims is o.k. to flash with UFNJ1.
did not see any mention of bootloader or modem in changelog or in list of 'extra' features.
"all i can really do , is stay out of my own way and let the will of heaven be done"

audit13 said:
What do you mean by the phone shuts down? Did you try copying the ROM to a microSD card?
Did you notice any bootloader or modem files in the S3Rx 4.0 (11-9-14) ROM? It may not include a modem or bootloader. In step 1 of the flash process, it says "AT&T I747 users should update bootloaders and modem to NE4 http://forum.xda-developers.com/gala...pdate-t2808654 I747M and T999 users need to be on 4.3 firmware or ROM will not boot. "
Click to expand...
Click to collapse
I reboot the phone in ClockWorkMod recovery. Then I go to the command prompt and type:
Code:
adb push S3Rx_UCUFNE4_AROMA_11-9-14.zip /sdcard/
It starts pushing the file to the phone, but after a while, the phone screen goes black, and I get a "Protocol failure" on the command prompt. After this the power button no longer works, I have to do a battery pull for the phone to work again. The phone has 10 GB of storage left so it didn't run out of space. The USB chord is brand new so I don't think it's that either. It worked fine before when I pushed other smaller roms.
In another question, would this process allow me to downgrade the modem and restore stock rom?
http://forum.xda-developers.com/showthread.php?t=1831898

i am pretty sure that since youre on MJ1 , your bootloader and modem have to match.
"all i can really do , is stay out of my own way and let the will of heaven be done"

Did you try flashing the card from an external microSD card?
AT&T never released a stock ROM for the i747 beyond 4.1.1 afaik; therefore, you cannot get back to stock unless you flash an OTA ROM that has been compiled for flashing in Odin.
I do not recommend mixing and matching bootloaders and modems as a mismatch may result in a hard brick.
Downgrading only the modem will not allow you to flash back to stock.

audit13 said:
Did you try flashing the card from an external microSD card?
Click to expand...
Click to collapse
I haven't tried flashing from external microSD card as I don't have one.
audit13 said:
AT&T never released a stock ROM for the i747 beyond 4.1.1 afaik; therefore, you cannot get back to stock unless you flash an OTA ROM that has been compiled for flashing in Odin.
I do not recommend mixing and matching bootloaders and modems as a mismatch may result in a hard brick.
Downgrading only the modem will not allow you to flash back to stock.
Click to expand...
Click to collapse
So you're basically telling me I'm stuck with custom roms unless I find a 4.4.2 OTA ROM I can flash with Odin (which doesn't appear to exist)?
---------- Post added at 05:24 PM ---------- Previous post was at 05:01 PM ----------
Would it be safe to try this:
http://forum.xda-developers.com/showthread.php?t=2788357
Even though I'm on I747UCUFNJ1 and not on I747UCUFNE4?

Once you upgrade to the 4.3 or newer bootloader on the i747, you are stuck with either custom ROMs or OTA ROMs that have been compiled for flashing in Odin or CWM/TWRP.
You can try flashing the NE4 ROM because it doesn't appear to include a bootloader or modem. The first post says "Prerequisites include a minimum of a 4.3 bootloader and modem.
If you are not on the official 4.4.2 bootloaders and modem then you will need to flash ktoonsez kernel."

Thanks audit13 and mrrocketdog for all the help. I was able to get the AROMA rom installed on the phone. All functionalities lost with AOSP ROMs are back working so that's a plus. Still can't get updates OTA updates but this phone is probably not gonna have any new ones. Still hopeful that lolipop based AOSP ROMs fix the problems I had, but I'm not holding my breath.

[Q] Upgrading baseband version

I'm using SlimKat 4.4.4, yet my phone's baseband version is 4.1.1 (I747UCDLK3). I'm looking to upgrade my baseband version to 4.4.2 due to some issues.
Can I upgrade straight from 4.1.1 to 4.4.2?
Or do I need to upgrade to 4.1.2 -> 4.3 -> 4.4.2? If this is the case, I have one concern. There are many footnotes saying if you downgrade from 4.4.2 to a lower version, you will brick your phone. These footnotes don't specifically say whether they're talking about OS version or baseband version. Is it safe for me to upgrade to 4.1.2 -> 4.3 -> 4.4.2 with a 4.4.2 ROM? Is it safe for me to flash a 4.1.1 stock ROM?
Any help appreciated. Thanks!

scripte said:
I'm using SlimKat 4.4.4, yet my phone's baseband version is 4.1.1 (I747UCDLK3). I'm looking to upgrade my baseband version to 4.4.2 due to some issues.
Can I upgrade straight from 4.1.1 to 4.4.2?
Or do I need to upgrade to 4.1.2 -> 4.3 -> 4.4.2? If this is the case, I have one concern. There are many footnotes saying if you downgrade from 4.4.2 to a lower version, you will brick your phone. These footnotes don't specifically say whether they're talking about OS version or baseband version. Is it safe for me to upgrade to 4.1.2 -> 4.3 -> 4.4.2 with a 4.4.2 ROM? Is it safe for me to flash a 4.1.1 stock ROM?
Any help appreciated. Thanks!
Click to expand...
Click to collapse
first if wanted , i would get the free unlock sim code (am pretty sure is available on 4.1.1).
all i have ever read says to do the incremental updates (safest).; which i believe you can do OTA ; or flash thru recovery.
yes , you will most surely brick your phone if you try to downgrade bootloader from 4.4.2.
AND you want to keep bootloader and baseband at the same version. upgrade one then upgrade the other.
if your already on 4.1.1 , then yes flash away the stock 4.1.1 rom ; if youre talking about after you upgrade to 4.4.2 then the 4.1.1 may not flash unless you edit the updater script (think thats what its called , been awhile).
good luck !
"all i can really do , is stay out of my own way and let the will of heaven be done"

scripte said:
I'm using SlimKat 4.4.4, yet my phone's baseband version is 4.1.1 (I747UCDLK3). I'm looking to upgrade my baseband version to 4.4.2 due to some issues.
Can I upgrade straight from 4.1.1 to 4.4.2?
Or do I need to upgrade to 4.1.2 -> 4.3 -> 4.4.2? If this is the case, I have one concern. There are many footnotes saying if you downgrade from 4.4.2 to a lower version, you will brick your phone. These footnotes don't specifically say whether they're talking about OS version or baseband version. Is it safe for me to upgrade to 4.1.2 -> 4.3 -> 4.4.2 with a 4.4.2 ROM? Is it safe for me to flash a 4.1.1 stock ROM?
Any help appreciated. Thanks!
Click to expand...
Click to collapse
This is an I747, right? I think the I747M had LK3 firmware too. If you happen to be on an I747M don't flash any of the I747 specific stuff below, or you'll probably brick your phone.
Since you're still on the old firmware it might be a good idea to carrier unlock your phone if you haven't already done it. You'll lose that ability if you update.
To update to 4.4.2 firmware you can go two ways. You can Odin back to unrooted stock and you should start receiving OTA updates. They will be incremental and they'll come about 24 hours apart, or you can set your system time ahead a day to cheat that. Eventually you'll get up to the 4.4.2 firmware. NE4 is 4.4.2, but NJ1 is the most recent. This is probably the safest way, but it will be somewhat slower. Those OTA's are full firmware packages so they're big downloads.
Or you can flash bootloader/modem only upgrades in custom recovery. Enewman17 has posted everything you need to get an I747 up to date to XDA. I flashed all these while running the Slimkat stable 9 ROM to get my I747 from LK3 up to NJ1. This has to be done incrementally and you have to boot successfully into your ROM in between each firmware flash. You can't jump from the 4.1.1 bootloader to the 4.4.2 bootloader. First flash the MJB firmware update linked to this thread then reboot into your ROM. Next flash the NE4 firmware zip also linked to that thread and then reboot into your ROM. You're on 4.4.2 firmware at this point, but if you want to be on the newest bootloader and modem then flash the NJ1 zip attached to this thread. If you go this route be sure you read enewman's posts very carefully and understand exactly what you're doing because fiddling with the bootloader and modem is the #1 way to hard brick this phone.
For the most part you can flash any ROM you want no matter what firmware you're on as long as it is intended for I747. You might find that your wifi won't work or your modem doesn't work or maybe it just bootloops if you get on a ROM that wasn't intended for the bootloader/modem currently on your phone, but you can still boot up into recovery and restore a backup or flash another ROM and get out of that. What you have to be very, very careful with is the bootloaders since Knox was introduced, that's MJB, NE4, and NJ1. Those bootloaders cannot ever be downgraded; don't try it. You'll hard brick and it is pretty hard to recover from. Its also for the best to keep your bootloader and modem matched on this newer firmware; the OTA method or the zips linked to the threads above will do that. Custom ROMs that are AOSP/CM based won't ever mess with your bootloader and modem. They're just a system image and a kernel. What you have to be really careful with is Odin, those are usually full firmware packages. AT&T hasn't allowed a stock image beyond 4.1.1 to be released for the I747, so once you're on the newer bootloaders there is no more option to Odin back to stock.
Good luck.

Flash New bootloader and modem while on Old Rom?

I have a Canadian Galaxy S3, on 4.1.1 DLK4 Official. I rooted it, and have TWRP.
I want to upgrade my rom to a CM12/13 but of course with root and custom recovery, OTA updates are blocked.
I need newer bootloaders and modem to run the newer android versions.
Should I install them now, while on 4.1.1, and then flash CM12, or should I sequentially update each of the AT&T firmwares until I get up to 4.4.2?
Do official roms have the bootloaders and modems in them and install them automatically?
Should I use the Kies restore method?

The Canadian and att s3 phones are not the same model number. Don't flash an att bootloader to your Canadian phone as this may brick the phone.
Flash latest stock rom from Sammobile.com, flash twrp, flash cm.

audit13 said:
The Canadian and att s3 phones are not the same model number. Don't flash an att bootloader to your Canadian phone as this may brick the phone.
Flash latest stock rom from Sammobile.com, flash twrp, flash cm.
Click to expand...
Click to collapse
Okay, but i can use AT&T roms tho?

The i747m will work with d2can, d2lte, and d2att Roms.

Is it safe to flash straight from 4.1.1 to 4.4.2 using a sammobile rom? will i brick due to Knox bootloader and modem?
Can I flash it using TWRP?
If someone could link a tutorial that would be very helpful.
I keep reading stuff that says to flash the newer bootloader before flashing a 4.3 firmware, and some that say the opposite. Others say that people should incrementally update.
I want to go from 4.1.1 original with Root and TWRP, to CM13.
Thank you.

Yes, you can flash the latest stock 4.4.2 rom from Sammobile.com directly to your phone. No need to do anything other than backing up your data.

audit13 said:
Yes, you can flash the latest stock 4.4.2 rom from Sammobile.com directly to your phone. No need to do anything other than backing up your data.
Click to expand...
Click to collapse
Thank you!
Now I just need to get the balls again to use odin. Flashing the custom recovery using the Universal Tool Kit that had step by step walkthrough was adrenaline rush enough LOL.
I could also use Kies, as that has 4.4.2 OB3 (telus), and also has "emergency firmware recovery" feature if a brick ever happens. Though ideally the only time boot.img gets flashed is only with Full Stock Firmware files.

I find kies to be unreliable when I have tried to restore firmware so I always stuck with Odin.

Back to stock ROM Galaxy S3 i747

Hello people, first of all I dont know if im in the right place, Im new to this forum.
My situation is that I want to restore back to stock ROM my i747 with a custom rom running on android 4.4.4 with SlimROM, my Kernel is 3.4.104-cyanogenmod-g38a4e52
Baseband i747UCUEMJB
I passed through 4.3 stock ROM, then i flashed to Cyanogen 12 with android 5.1.1 and now Im with SlimKat with android 4.4.4. I want to go back to stock ROM, but I read about the locked bootloader on newer versions of android, I dont really know much about this thing, but I think that is if I want to go back to 4.1, im i right
The thing is, can I go back to 4.3 stock rom
Thank you.

The bootloader is not locked; however, it cannot be downgraded to anything before 4.3.
Look here for items related to the i747: http://forum.xda-developers.com/showthread.php?t=1725839
Look here to flash stock 4.4.2 via Odin: http://forum.xda-developers.com/gal...ile-sgh-i747ucufne4v4-4-2attall-odin-t3305899

audit13 said:
The bootloader is not locked; however, it cannot be downgraded to anything before 4.3.
Look here for items related to the i747: http://forum.xda-developers.com/showthread.php?t=1725839
Look here to flash stock 4.4.2 via Odin: http://forum.xda-developers.com/gal...ile-sgh-i747ucufne4v4-4-2attall-odin-t3305899
Click to expand...
Click to collapse
If you want the Stock Odin MJB 4.3 file, and can't locate it, let me know and I'll upload it.

I don't need the files as I never had an i747 but I used to have the i747m.
The op may need them though.

audit13 said:
The bootloader is not locked; however, it cannot be downgraded to anything before 4.3.
Look here for items related to the i747: http://forum.xda-developers.com/showthread.php?t=1725839
Look here to flash stock 4.4.2 via Odin: http://forum.xda-developers.com/gal...ile-sgh-i747ucufne4v4-4-2attall-odin-t3305899
Click to expand...
Click to collapse
audit13 said:
I don't need the files as the never had an i747 but I used to have the i747m.
The op may need them though.
Click to expand...
Click to collapse
Quoted the wrong post, sorry about that.

No worries, we're all here to help each other.

Stock MJB 4.3 Odin File: (Google Drive Link)
I747UCUEMJB_2024954_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYZ1cwcmUtZmp4NU0/view?usp=drivesdk
Stock NE4 4.4.2 Odin Files: (Google Drive Links)
AP_I747UCUFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYQlRqY2VmUXh4Zk0/view?usp=drivesdk
BL_I747UCUFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYbGRMNGRLQnFlLTg/view?usp=drivesdk
CP_I747UCUFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYeE12YmltNmJWbG8/view?usp=drivesdk
CSC_16G_ATT_I747ATTFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYemotYmd3VXI4eGs/view?usp=drivesdk

audit13 said:
The bootloader is not locked; however, it cannot be downgraded to anything before 4.3.
Look here for items related to the i747: http://forum.xda-developers.com/showthread.php?t=1725839
Look here to flash stock 4.4.2 via Odin: http://forum.xda-developers.com/gal...ile-sgh-i747ucufne4v4-4-2attall-odin-t3305899
Click to expand...
Click to collapse
Chuckles5150 said:
Stock MJB 4.3 Odin File: (Google Drive Link)
I747UCUEMJB_2024954_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYZ1cwcmUtZmp4NU0/view?usp=drivesdk
Stock NE4 4.4.2 Odin Files: (Google Drive Links)
AP_I747UCUFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYQlRqY2VmUXh4Zk0/view?usp=drivesdk
BL_I747UCUFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYbGRMNGRLQnFlLTg/view?usp=drivesdk
CP_I747UCUFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYeE12YmltNmJWbG8/view?usp=drivesdk
CSC_16G_ATT_I747ATTFNE4_1514807_REV04_user_low_ship.tar.md5
https://drive.google.com/file/d/0B0lfMZeSyJnYemotYmd3VXI4eGs/view?usp=drivesdk
Click to expand...
Click to collapse
Thank you guys for your help, so Im good as soon as I flash to 4.3 stock, what about the recovery, is that made by Odin? Or should I first flash a specific one?
About the 4.4.2, is it better than the 4.3 and would I be able to go to 4.3 in case I get the NE4?
Again thank you for your answers.

Once you upgrade to the 4.4.2 bootloader, you cannot downgrade to the 4.3 bootloader.

Stock Recovery will be installed by Odin.