Develop Bugs

[q] can´t update my gs3 sgh-i747 from 4.1.2 to 4.3

Hi i have been trying to update my att SG3(rooted) 4.1.2 for a while now,when i try to update to 4.3 it says it does not have any update available but i know that this phone can go up to 4.4.2 kitkat,i have tried to do it with odin but unfortunaley i couldnt find the original firmaware in sam-mobiles ,plz help,it does not necesserly have to go to 4.3 if you guys also now a way to go directly to 4.4.2 it will be great.and i have also tried before rooting my phone,still didnt work.P.S:sorry for my bad english.

If you have the 4.1.2 bootloader on your phone, the simplest way would be to flash back to stock ATT 4.1.1 with Odin and use OTA update to get to 4.4.2.
Using Odin will wipe all of your data off your phone.

You can also odin flash MJB firmware available in the General section. Then you'd only need one ota to get to 4.4.2.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

audit13 said:
If you have the 4.1.2 bootloader on your phone, the simplest way would be to flash back to stock ATT 4.1.1 with Odin and use OTA update to get to 4.4.2.
Using Odin will wipe all of your data off your phone.
Click to expand...
Click to collapse
sorry,im kinda new at this but does bootloader means firmware?,and if it does,for me to flash do i just download the android 4.1.1 and flash to my phone or is there something i need to do before doing that(like unrooting my phone).and if just flash can you plz indicate me a secure site to download it.sorry for the bothering

Yes. When folks here say to flash/update bootloader, they are taking about the full firmware. (Kinda confused me at first too)
You can download it at http://sammobile.com/firmwares
Sent from my SAMSUNG-SGH-I747 using Tapatalk

shaquil999 said:
sorry,im kinda new at this but does bootloader means firmware?,and if it does,for me to flash do i just download the android 4.1.1 and flash to my phone or is there something i need to do before doing that(like unrooting my phone).and if just flash can you plz indicate me a secure site to download it.sorry for the bothering
Click to expand...
Click to collapse
There are various pieces of software that need to be installed in order to all of the various functions to work. The main components are:
the bootloader http://www.addictivetips.com/mobile...bootloader-on-android-phones-complete-guide/;
the modem/baseband http://en.wikipedia.org/wiki/Baseband_processor; and
the operating system or ROM itself.
ATT never released a full firmware (ROM, bootloader, baseband) for 4.1.2 but they did for 4.1.1.
Since your phone is on 4.1.2, you would download the firmware from the previous post, download Odin, install the USB drivers, and flash the firmware.

ok,thank you both DocHoliday77 and audit13

Just a quick FYI, it's more than just the bootloader/modem. The firmware includes the following partitions:
aboot - bootloader
NON-HLOS.BIN - modem/baseband
RPM - resource and power management
sbl2/sbl3 - secondary bootloaders
TZ - Trust Zone
System - rom
Boot - kernel
Cache
Recovery
The first group MUST all match. If they don't it can hard brick.
(This is why I've always wondered why people on the AT&T forums always say to just update bootloader and modem. I'm used to referring to it as the base firmware if not including the system/rom components, or full firmware if including the system.)
Sorry, a little OT. Not anything to be overly concerned about, just me being overly technical is all.
@op
If you follow audit13's instructions you'll be fine.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

DocHoliday77 said:
Just a quick FYI, it's more than just the bootloader/modem. The firmware includes the following partitions:
aboot - bootloader
NON-HLOS.BIN - modem/baseband
RPM - resource and power management
sbl2/sbl3 - secondary bootloaders
TZ - Trust Zone
System - rom
Boot - kernel
Cache
Recovery
The first group MUST all match. If they don't it can hard brick.
(This is why I've always wondered why people on the AT&T forums always say to just update bootloader and modem. I'm used to referring to it as the base firmware if not including the system/rom components, or full firmware if including the system.)
Sorry, a little OT. Not anything to be overly concerned about, just me being overly technical is all.
@op
If you follow audit13's instructions you'll be fine.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
sorry but there is something that i still don understand,for me to flash my 4.1.2 to 4.1.1 all i have to do is get the correct firmware and just flash it with odin, dont have to unroot?

shaquil999 said:
sorry but there is something that i still don understand,for me to flash my 4.1.2 to 4.1.1 all i have to do is get the correct firmware and just flash it with odin, dont have to unroot?
Click to expand...
Click to collapse
Yes. Flashing a stock ROM from sammobile.com will unroot and put the phone back to stock.

audit13 said:
Yes. Flashing a stock ROM from sammobile.com will unroot and put the phone back to stock.
Click to expand...
Click to collapse
hi,i have sucefully flashed the 4.1.1 on my phone but the problem still remains,i cant update it,i tied with kies too,still nothing

Now that you're on 4.1.1, use the free method to sim unlock your phone before running OTA updates.
When you are in download mode, do you see the word "Custom" anywhere? Did you run triangle away before flashing back to 4.1.1?

audit13 said:
Now that you're on 4.1.1, use the free method to sim unlock your phone before running OTA updates.
When you are in download mode, do you see the word "Custom" anywhere? Did you run triangle away before flashing back to 4.1.1?
Click to expand...
Click to collapse
i have done a unlock method,i can make phone calls but i cant connect to the internet (wich is the main reason why i want to upgrade to kit kat,so hopefully it will fix that)or when i try to activate mobile hotspot it says"mobile data is not available or invalid sim".
When i am in download mode there is no place written "custom".
And no i did not use triangle away

shaquil999 said:
i have done a unlock method,i can make phone calls but i cant connect to the internet (wich is the main reason why i want to upgrade to kit kat,so hopefully it will fix that)or when i try to activate mobile hotspot it says"mobile data is not available or invalid sim".
When i am in download mode there is no place written "custom".
And no i did not use triangle away
Click to expand...
Click to collapse
Did you check the APN settings on your phone to make sure they are correct?

audit13 said:
Did you check the APN settings on your phone to make sure they are correct?
Click to expand...
Click to collapse
yes,but i think it has something to do with my mobile carrier,i wanted to change my mobile carrier as a last resort but if it is necessary to update then i will do that

Are you on a completely stock ROM? Which one?

audit13 said:
Are you on a completely stock ROM? Which one?
Click to expand...
Click to collapse
yes i am:android 4.1.1 build number I747UCDLK3

If you are on a completely stock ATT 4.1.1, OTA updates and data connections should work.
Under About, the baseband is also LK3?

audit13 said:
If you are on a completely stock ATT 4.1.1, OTA updates and data connections should work.
Under About, the baseband is also LK3?
Click to expand...
Click to collapse
yes
also now i have network connection but it is 2G

Is ATT your carrier?

[Q] No carrier/SIM support after 4.3 stock restore

My ATT SGH-i747 was rooted and running 4.4.2 until an OTA this past weekend soft-bricked the phone. Phone would boot to a blank screen but still allowed access to download and recovery modes, thankfully.
With help from this awesome forum, and a stock 4.3 flash via ODIN, thanks to enewman17's epic efforts and thread , the phone is back, but now won't recognize the SIM - and baseband version is "unknown" - I suspect I need to now go up to 4.4.2 to get the hw recognized by the sw. Went to ATT and they put a new SIM in but to no avail
CWM recovery is gone, but I can reload that easily enough...
Do I need to just flash the modem, or is the bootloader involved too?
Is there a single flash or .zip that will get the ROM (incl CSC and Modem) up to 4.4.2 in one shot?
I never really wanted to go this deep but here I am so now I'm looking for advice or direction as there are so many directions to look... thanks in advance!

Mismatch in firmware
Digging deeper, using Phone Info *Samsung*, I have noted the following
bootloader version: I747UCUFNJ1
baseband version: <blank>
pda version: I747UCUEMJB
csc version: I747ATTEMJB
skip a bit...
modem version: <blank>
hardware revision: <blank>
mobile operator name: <blank>
mobile network code: <blank>
So it would seem I have a mis-match of versions, where it seems all should be the same..
Would it be safe to flash to MJB following this thread?
http://forum.xda-developers.com/galaxy-s3-att/general/ucuemjb-to-ucufne4-firmware-update-t2808654

OCTANEJUNKIE said:
My ATT SGH-i747 was rooted and running 4.4.2 until an OTA this past weekend soft-bricked the phone. Phone would boot to a blank screen but still allowed access to download and recovery modes, thankfully.
With help from this awesome forum, and a stock 4.3 flash via ODIN, thanks to enewman17's epic efforts and thread , the phone is back, but now won't recognize the SIM - and baseband version is "unknown" - I suspect I need to now go up to 4.4.2 to get the hw recognized by the sw. Went to ATT and they put a new SIM in but to no avail
CWM recovery is gone, but I can reload that easily enough...
Do I need to just flash the modem, or is the bootloader involved too?
Is there a single flash or .zip that will get the ROM (incl CSC and Modem) up to 4.4.2 in one shot?
I never really wanted to go this deep but here I am so now I'm looking for advice or direction as there are so many directions to look... thanks in advance!
Click to expand...
Click to collapse
Your modem (baseband) appears to have been compromised in the process of downgrading from Kitkat. You could try either of the following solutions...
1) Flash the UCUEMJB modem via custom recovery to return you to complete stock 4.3. You can see the modem file here ....
https://www.androidfilehost.com/?fid=23269279319197285
2) Do a complete stock restore to 4.4.2. You can find the stock update zip via the following thread ...
http://forum.xda-developers.com/galaxy-s3-att/general/ucuemjb-to-ucufne4-firmware-update-t2808654
If you can reflash the 4.3MJB modem, you can check to see if you can get an OTA update to 4.4.2. Using Option 2 requires you to be on complete stock 4.3 so this may not work if you currently don't have the baseband/modem. I would strongly advise you stick to the custom recovery flashable files for now and avoid Odin. You would, however, need to restore custom recovery via Odin.
Hope this works for you.

Larry2999 said:
Your modem (baseband) appears to have been compromised in the process of downgrading from Kitkat. You could try either of the following solutions...
1) Flash the UCUEMJB modem via custom recovery to return you to complete stock 4.3. You can see the modem file here ....
https://www.androidfilehost.com/?fid=23269279319197285
2) Do a complete stock restore to 4.4.2. You can find the stock update zip via the following thread ...
http://forum.xda-developers.com/galaxy-s3-att/general/ucuemjb-to-ucufne4-firmware-update-t2808654
If you can reflash the 4.3MJB modem, you can check to see if you can get an OTA update to 4.4.2. Using Option 2 requires you to be on complete stock 4.3 so this may not work if you currently don't have the baseband/modem. I would strongly advise you stick to the custom recovery flashable files for now and avoid Odin. You would, however, need to restore custom recovery via Odin.
Hope this works for you.
Click to expand...
Click to collapse
Thanks for the detailed reply with links, Larry :good:
So I guess my plan of actions will be
1) re-install custom recovery w CWM to my external SD card as was previous
-do I *need* later version of CWM? Previous one of mine was 6.0.2.3, IIRC, that is what I can easily flash back to the phone
2) install .zip (from https://www.androidfilehost.com/?fid=23269279319197285) via CWM
If that doesn't work, I was interested in the S3Rx ROM vs. a stock 4.4.2 ROM - is there any way to go straight to a custom 4.4.2 ROM or should I get the modem working in 4.3 first?
Lastly, Where can I find a later version of a CW Recovery Touch .tar to flash via ODIN? (third stoopid noob question in this post, I know...)

Attempt to flash d2att_I747UCUEMJB_bootloader_modem_4.3.zip via CWM Recovery FAILED with Status 7, Installation aborted...
Bootloader version: I747UCUFNJ1
Baseband version: <blank>
Blank stare into space...

OCTANEJUNKIE said:
Attempt to flash d2att_I747UCUEMJB_bootloader_modem_4.3.zip via CWM Recovery FAILED with Status 7, Installation aborted...
Bootloader version: I747UCUFNJ1
Baseband version: <blank>
Blank stare into space...
Click to expand...
Click to collapse
You aren't the first to have this issue. This is why I am still on NE4 and did not take the OTA to NJ1. The update is pointless anyway, all it does is patch the kernel so towelroot won't work anymore aside from updating the bootloader.
Since your bootloader is NJ1, that is your firmware which cannot be downgraded. If you try, you will brick. You have to work with NJ1 files here only. Sure you can flash older modems, but stick to NJ1. I suggest using ODIN to flash a custom recovery, then use enewman17's NJ1 .zip file in said recovery to reflash all the NJ1 stuff. Then do a complete factory reset. You might need to flash stock recovery to do the hard factory data reset, as I am not sure if it can be done in CWM or TWRP.
In the future, I suggest freezing the update and not upgrading until people on here do it and report how it's working or rather not working in this case.

StoneyJSG said:
You aren't the first to have this issue. This is why I am still on NE4 and did not take the OTA to NJ1. The update is pointless anyway, all it does is patch the kernel so towelroot won't work anymore aside from updating the bootloader.
Since your bootloader is NJ1, that is your firmware which cannot be downgraded. If you try, you will brick. You have to work with NJ1 files here only. Sure you can flash older modems, but stick to NJ1. I suggest using ODIN to flash a custom recovery, then use enewman17's NJ1 .zip file in said recovery to reflash all the NJ1 stuff. Then do a complete factory reset. You might need to flash stock recovery to do the hard factory data reset, as I am not sure if it can be done in CWM or TWRP.
In the future, I suggest freezing the update and not upgrading until people on here do it and report how it's working or rather not working in this case.
Click to expand...
Click to collapse
Thanks for the response, Stoney :good:
I have CWM and TeamEpic v5 on external SD, so a version of custom recovery is there (CWM 6.0.2.3) - but do you have a link to enewman17's NJ1 .zip /recovery?
As far as freezing the updates in the future, yes. I tried to keep the OTA push from happening, apparently not ardently enough :crying:

OCTANEJUNKIE said:
Thanks for the response, Stoney :good:
I have CWM and TeamEpic v5 on external SD, so a version of custom recovery is there (CWM 6.0.2.3) - but do you have a link to enewman17's NJ1 .zip /recovery?
As far as freezing the updates in the future, yes. I tried to keep the OTA push from happening, apparently not ardently enough :crying:
Click to expand...
Click to collapse
Not a problem, glad to help when I can. I THINK this is the link you need: http://forum.xda-developers.com/galaxy-s3-att/general/ucufne4-to-ucufnj1-update-t2941792
You might want to post in that thread asking if it works when you are already on NJ1 though, or get a hold of enewman17 via PM or something.

SOLVED!
enewman17 posted NJ1 modem .zip here, and now me has modem and cellular service again!
Question: can I update the thread tag from [Q] to [SOLVED] myself?

Try editing your original post.

audit13 said:
Try editing your original post.
Click to expand...
Click to collapse
Yup... Done [emoji222] [emoji222] [emoji222]

[Q] APN not listed and cannot add

I was on CM 10.2.1
I upgraded to CM11 - I get no wireless data. My phone works but I have no APNs and I could not add them.
I tried SlimKat 9.0 same issue with the APN
I upgraded my CWM to 6.4.0.7 as I heard that caused issues when upgrading to CM11.
I bought Mobile Odin and flashed that way as I thought it might help.
Ive done the following to fix my APN
1) Loaded an old one from working CM 10.2.1
2) Run Root Tweak with the fix APN for CM11 checked
3) Done the airplane mode trick
4) Attempt to add one manually
Does anyone know why this is happening and more importantly how to correct this issue?
Yes I did pore through other threads on how to fix this but no avail.
Thank you

What is your bootloader and modem? Do you get data if you re-install your previous ROM?

audit13 said:
What is your bootloader and modem? Do you get data if you re-install your previous ROM?
Click to expand...
Click to collapse
Bootloader = I747UCDLK3
Modem = I747UCDLK3
Yes I get data when I load a backup of CM 10.2.1
Thanks

Data does not work on ROMs beyond cm10.2 because your bootloader and modem to too old.
I recommend flashing back to stock 4.1.1, sim unlock your phone if it is not already sim unlocked, and run OTA updates to at least 4.3, then install recovery and CM11.

audit13 said:
Data does not work on ROMs beyond cm10.2 because your bootloader and modem to too old.
I recommend flashing back to stock 4.1.1, sim unlock your phone if it is not already sim unlocked, and run OTA updates to at least 4.3, then install recovery and CM11.
Click to expand...
Click to collapse
Thanks for the quick reply. That sounds hard. From what I'm reading going back is treacherous.
So these are the steps.
1. Load this firmware via ODIN -> I747UCDLK3_I747ATTDLK3_I747UCDLK3_HOME.zip -- What about gapps? Is that in this zip?
2. Run triangle away. (Do I need to do this?)
3. Contact my carrier to unlock my sim. (If this is carrier unlocking ie taking my att phone to Sprint etc, why is this needed?)
4. Get OTA updates. Will this come automagically because I'm on 4.1.1 and does it matter if my flash counter is gt 1?
5. Root phone via Odin with this file CF-Auto-Root-d2att-d2uc-samsungsghi747.tar.md5.
6. Install CWM if it went away when I went back to firmware - Of course it would because I'll factory reset my phone in step 1.
7. Flash away to a 4.4.4 Rom
Did I miss anything?
Step 4 is the one that scares me -- That one is out of my control. Either I get the OTA or I dont. Anyway I can "request" the OTA?
Thanks again
Be Well

From your custom ROM, run triangle away to reset counter and change things back to official.
Now flash back to stock 4.1.1 using Odin. If your phone does not boot, you need to get into recovery, do a factory reset, and reboot the phone and go through the set up routine.
After loading stock 4.1.1, do this to sim unlock your phone for free: http://forum.xda-developers.com/showthread.php?t=2529200. If you have a code from ATT, you must be running a stock ROM or a custom ROM that is based on a stock Samsung ROM in order to enter the unlock code.
You must be on a stock ROM in order to take OTA updates. OTA updates are the safest way to obtain an updated bootloader and modem.
After updating to 4.3, you cannot downgrade the bootloader as doing so may brick the phone.
The choice is yours in terms of what you want to do. As you found out, some ROMs will not function properly without an updated bootloader and modem. Mixing modem and bootloader versions may also result in a bricked phone.

audit13 said:
From your custom ROM, run triangle away to reset counter and change things back to official.
Now flash back to stock 4.1.1 using Odin. If your phone does not boot, you need to get into recovery, do a factory reset, and reboot the phone and go through the set up routine.
After loading stock 4.1.1, do this to sim unlock your phone for free: http://forum.xda-developers.com/showthread.php?t=2529200. If you have a code from ATT, you must be running a stock ROM or a custom ROM that is based on a stock Samsung ROM in order to enter the unlock code.
You must be on a stock ROM in order to take OTA updates. OTA updates are the safest way to obtain an updated bootloader and modem.
After updating to 4.3, you cannot downgrade the bootloader as doing so may brick the phone.
The choice is yours in terms of what you want to do. As you found out, some ROMs will not function properly without an updated bootloader and modem. Mixing modem and bootloader versions may also result in a bricked phone.
Click to expand...
Click to collapse
To stick with 10.2 or not to that is the question. Everytime I flash or do anything like this on my phone - I get a small lump in my throat knowing I'm dancing in the razors edge of bricking it.

I know how you feel, but I've done it enough times and just accept the fact that I may brick the phone. Jtag service would cost me around $75 so I'm willing to take the chance. I'd be less willing if the phone still has warranty.
Flashing back to stock and running OTA updates is the safest route.
If you don't sim unlock while on stock 4.1.1 and you want to sim unlock your phone in the future, you will need to be on a stock or virtually stock ROM in order to enter the unlock code.

Used ODIN to go back to stock 4.1.1.
Got the OTA update to 4.3
I have my MMS and cellular data back
I'll stick on stock, unrooted 4.3 for a minute.
I should be available to root and update to CM11 or SlimKat or any 4.4 rom whenever I so desire and still keep cellular data.
My baseband is I747UCUEMJB. How can I find out my bootloader and modem versions on UNROOTED device?
Your help is much appreciated and your instructions were flawless.

ddunleavy2 said:
Used ODIN to go back to stock 4.1.1.
Got the OTA update to 4.3
I have my MMS and cellular data back
I'll stick on stock, unrooted 4.3 for a minute.
I should be available to root and update to CM11 or SlimKat or any 4.4 rom whenever I so desire and still keep cellular data.
My baseband is I747UCUEMJB. How can I find out my bootloader and modem versions on UNROOTED device?
Your help is much appreciated and your instructions were flawless.
Click to expand...
Click to collapse
In a terminal or adb shell you can enter this to check your bootloader:
Code:
getprop ro.bootloader
In a terminal or adb shell you can enter this to check your modem (should match the baseband your phone reports in About):
Code:
getprop gsm.version.baseband
I don't believe either of these commands require root unless stock has getprop locked down tighter that AOSP ROMs; I just entered them in a user shell.
There are a couple of firmware updates for your device beyond MJB, NE4 and NJ1. Some users, myself included, had GPS problems that were a bit of a pain to fix on newer 4.4 AOSP based ROMs with the MJB firmware, but data was ok with MJB. Also, you'll need newer firmware if you decide to test drive the lollipop alphas that are floating around. There are custom recovery flashable firmware updates on XDA from a trusted developer if you decide you need that, or you might want to take a couple more OTAs if you're more comfortable going that route. You're already on MJB so there's no going back

The terminal worked
Bootloader and baseband = I747UCUEMJB
What???? I might need more updates for all the roms out there.....ugggh.
"There are custom recovery flashable firmware updates on XDA from a trusted developer if you decide you need that, or you might want to take a couple more OTAs if you're more comfortable going that route."
If I decide to use these flashable firmware updates on XDA from a trusted developer or OTA its same as this: going forward and NEVER going backward when getting firmware updates?, yes?

yes. downgrading bootloader will almost certainly cause a brick.
"all i can really do , is stay out of my own way and let the will of heaven be done"
---------- Post added at 10:09 PM ---------- Previous post was at 10:07 PM ----------
audit13 said:
Data does not work on ROMs beyond cm10.2 because your bootloader and modem to too old.
I recommend flashing back to stock 4.1.1, sim unlock your phone if it is not already sim unlocked, and run OTA updates to at least 4.3, then install recovery and CM11.
Click to expand...
Click to collapse
+1
"all i can really do , is stay out of my own way and let the will of heaven be done"

You guys are on point.
Last night I received another OTA to 4.4.2.
Baseband now at NE4.
Thanks again for taking the time to answer all this -- Really really appreciate it.
EDIT: Can I still use this to root my phone via ODIN or is there a different process for this baseband?
CF-Auto-Root-d2att-d2uc-samsungsghi747.tar.md5
I load this into ODIN, plug my phone in download mode and root away. Does either the file I use change or do I have to use something other than ODIN?
Thanks again

To get root, I would flash a custom recovery and flash supersu from recovery, then let supersu disable know.
The file you named looks to be outdated as it refers to the s3 as d2att. Since unified builds were released, the s3 is now referred to as the d2lte.

I have ROM Manager installed. It has an option to "Flash Clockworkmod Recovery". I just tried it and it failed and I think thats because I dont have root. In the past I've had to root my phone via ODIN, then flash custom recovery then MOD away.
In the past I rooted the S3 via ODIN. With this new 4.4.2 version do I still root via ODIN provide I find the correct file because -> CF-Auto-Root-d2att-d2uc-samsungsghi747.tar.md5 this one is probably for a 4.1.1 version phone?

I would not flash anything for the d2att at this point.
Try this:
Download the latest tar.md5 file from here: https://goo.im/devs/philz_touch/CWM_...Edition/d2lte/
Download supersu zip from here and place it onto an external SD card or copy it to the phone's internal storage: http://download.chainfire.eu/695/SuperSU/
In Odin, uncheck everything except f.reset time. Flash Philz. When you see reset in the status window, remove USB cable, pull battery, replace battery, boot into recovery, flash supersu, reboot.

I am fairly certain that AOSP, or at least CM, de-unified in the past few months. Not that it matters much, other than for the confusion it causes.

i747(at&t) no signals on t-mobile after CM12 flashed

i747 from at&t rooted and twrp installed . Flashed CM12 5.1.1 no signals from t-mobile.To make it work on T-Mobile from att stock i had to flash QCN(t999) via QPST by code *#7284# to change into diag. . But now after flashing cm12 ,it is not giving me signals .No calls no DATA . Now i can not flash T999 QCN again because secret codes are hidden . Is there something i can do, to get signals on CM12 . I want to enjoy 5.1.1 !:silly:. . I already tried all of the (i747)lollipop roms same results. can i flash tmobile rom on att is it possible (radios are different ) will that work ?. I forgot there was an apk that could bring up secret codes window forgot the name. If anyone knows or have a link .

You can flash the T999 roms, just not the firmware.
Sent from my SGH-T999 using Tapatalk

You never stated what bootloader and modem was on your device before you flashed any of the Lollipop Roms. On the i747 you need at least the NE4 bootloader and modem to get signal on 5.x.x.

dawgdoc said:
You never stated what bootloader and modem was on your device before you flashed any of the Lollipop Roms. On the i747 you need at least the NE4 bootloader and modem to get signal on 5.x.x.
Click to expand...
Click to collapse
with NE4 , i can not downgrade ? I was on LK3 . Let me know if i can downgrade please from NE4 that is needed in case of ER accidents..( as i have already turned previous device into paper weight ) . If so i will upgrade then try to flash again . Thanks

DocHoliday77 said:
You can flash the T999 roms, just not the firmware.
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Thanks Doc i am going to give a shot .

rns416 said:
with NE4 , i can not downgrade ? I was on LK3 . Let me know if i can downgrade please from NE4 that is needed in case of ER accidents..( as i have already turned previous device into paper weight ) . If so i will upgrade then try to flash again . Thanks
Click to expand...
Click to collapse
Correct with the NE4 bootloader you can not downgrade without bricking your phone. Downgrades went out the window with MJB (Jellybean 4.3) and have not returned. Meaning you can never downgrade on MJB, NE4, NJ1, or NJ2.
With LK3 you could go upto MG2 (JB 4.1.2) or MJ2 (the leaked release of 4.3) and still be able to downgrade. I have downgraded while on MJ2 with no issues. I went down to LK3 from MJ2 in order to utilize the free sim unlock, I think DocHoliday mentioned it earlier. Since then I have gone back up to MJB and then to NE4, so I can no longer downgrade.

dawgdoc said:
Correct with the NE4 bootloader you can not downgrade without bricking your phone. Downgrades went out the window with MJB (Jellybean 4.3) and have not returned. Meaning you can never downgrade on MJB, NE4, NJ1, or NJ2.
With LK3 you could go upto MG2 (JB 4.1.2) or MJ2 (the leaked release of 4.3) and still be able to downgrade. I have downgraded while on MJ2 with no issues. I went down to LK3 from MJ2 in order to utilize the free sim unlock, I think DocHoliday mentioned it earlier. Since then I have gone back up to MJB and then to NE4, so I can no longer downgrade.
Click to expand...
Click to collapse
Hey dawgdoc ,
I just turned another device into paper weight man .It had LK3 and i tried to flash MJB via odin stock firm from company but end of odin it f**king hard bricked the phone is there something i messed up . The bootloader were from DLK3 (rooted and twrp) but if i was just flashing new firm from odin it was not supposed to brick it just wondering what am i missing throwing my 500 for 2 phones into garbage !

Do you get any response from the device at all?
Plug into the computer and open device manager. Does it show connected as QHSUSB_DLOAD, or something else?
Did odin complete the flash and say PASS when it was done?
Sent from my SGH-T999 using Tapatalk

Where did you get an Odin flashable 4.3 stock rom? As far as I know AT&T never released an official one, nor have I ever seen one on sammobile. There may have been one put together by either loserskater or enewman17, but that one is rather hard to find.
Going from LK3 to MJB should cause no problems, I have done so myself. Going from NE4 to MJB is risking bricking your phone. I have read of some who have recovered from the bricking caused by the NE4 to MJB downgrade. Those used a debrick image on an external sdcard, the image was based on the bootloader that was running before the phone/device was bricked. There may be in the forums, but I'm not sure of that.
---------- Post added at 07:49 PM ---------- Previous post was at 07:25 PM ----------
dawgdoc said:
Where did you get an Odin flashable 4.3 stock rom? As far as I know AT&T never released an official one, nor have I ever seen one on sammobile. There may have been one put together by either loserskater or enewman17, but that one is rather hard to find.
Going from LK3 to MJB should cause no problems, I have done so myself. Going from NE4 to MJB is risking bricking your phone. I have read of some who have recovered from the bricking caused by the NE4 to MJB downgrade. Those used a debrick image on an external sdcard, the image was based on the bootloader that was running before the phone/device was bricked. There may be in the forums, but I'm not sure of that.
Click to expand...
Click to collapse
This person tells how he used a debrick image on a device he bricked flashing NE4 and provides some links. And the post following that one has links to NE4 debrick images.

Thanks guys for helping me out, i tried debrick with 64 gb class 10 sd and it worked now trying to flash firmware again .If any tips will be great, just read DocHoliday77 post that you need to remove sd before odin back to firmware. So after that, i wont have to boot with sd card is that right. Thanks for saving my eyes burning through frames by frame .. ( I still didn't get it why it's got bricked i was coming from lk3 4.1.1 to mjb 4.3 !)

rns416 said:
Thanks guys for helping me out, i tried debrick with 64 gb class 10 sd and it worked now trying to flash firmware again .If any tips will be great, just read DocHoliday77 post that you need to remove sd before odin back to firmware. So after that, i wont have to boot with sd card is that right. Thanks for saving my eyes burning through frames by frame .. ( I still didn't get it why it's got bricked i was coming from lk3 4.1.1 to mjb 4.3 !)
Click to expand...
Click to collapse
I need a Quick help please i tried flashing mjb but phone still wont boot without sd card . Now download mode does not stay it comes and go the only option is i can get to recover from stock . So i need to flash bootloaders and modem only right from stock recovery i can not flash cwm or twrp .

After Debrick force phone to to boot from internal storage
Thanks DocHoliday77 and Larry2999 , I followed direction from Larry and used DocHoliday files . After debrick i was unable to boot without Debrick image from sdcard. Even after i flashed MJB with odin it was not working . All you have to do is to flash bootloader and modem to make it boot from internal storage . I add all the files in the link below.
I followed this direction http://forum.xda-developers.com/showthread.php?t=2608260&page=2 . And files were uploaded by DocHoliday77 in one of the posts that i can not remember the actual link . I used philz_touch_6.48.4-d2lte.tar.md5 for recovery that worked for me twrp for some reason was not working.

dawgdoc said:
Where did you get an Odin flashable 4.3 stock rom? As far as I know AT&T never released an official one, nor have I ever seen one on sammobile. There may have been one put together by either loserskater or enewman17, but that one is rather hard to find.
Going from LK3 to MJB should cause no problems, I have done so myself. Going from NE4 to MJB is risking bricking your phone. I have read of some who have recovered from the bricking caused by the NE4 to MJB downgrade. Those used a debrick image on an external sdcard, the image was based on the bootloader that was running before the phone/device was bricked. There may be in the forums, but I'm not sure of that.
---------- Post added at 07:49 PM ---------- Previous post was at 07:25 PM ----------
This person tells how he used a debrick image on a device he bricked flashing NE4 and provides some links. And the post following that one has links to NE4 debrick images.
Click to expand...
Click to collapse
Thanks alot dawgdoc that link saved me from ......
Now that i am back again i really want to enjoy lollipop i have MJB how can i get it please . Any help do not want to brick it again . !

rns416 said:
Thanks alot dawgdoc that link saved me from ......
Now that i am back again i really want to enjoy lollipop i have MJB how can i get it please . Any help do not want to brick it again . !
Click to expand...
Click to collapse
To run a Lollipop ROM you will need to be on at least the NE4 bootloader and modem. You can find them in his NJ1 or NJ2 threads. It is not necessary to flash the ROMs, just the bootloader and modem. If you don't flash some KitKat or LP rom after updating the bootloader and modem, you may have issues running the MJB ROM. If you want newer than the NE4 bootloader and modem, be sure you flash them each in order, don't skip NE4 or NJ1 if you are going all of the way to NJ2. All of the mentioned bootloader/modem files can be found on enewman17's AFH profile.

dawgdoc said:
To run a Lollipop ROM you will need to be on at least the NE4 bootloader and modem. You can find them in his NJ1 or NJ2 threads. It is not necessary to flash the ROMs, just the bootloader and modem. If you don't flash some KitKat or LP rom after updating the bootloader and modem, you may have issues running the MJB ROM. If you want newer than the NE4 bootloader and modem, be sure you flash them each in order, don't skip NE4 or NJ1 if you are going all of the way to NJ2. All of the mentioned bootloader/modem files can be found on enewman17's AFH profile.
Click to expand...
Click to collapse
I will try DirtyUnicorn seems good or give me any suggestion . So you said just update NE4 bootloader and modem in recovery then flash LP rom (without rebooting) thats it without installing whole NE4 .

rns416 said:
I will try DirtyUnicorn seems good or give me any suggestion . So you said just update NE4 bootloader and modem in recovery then flash LP rom (without rebooting) thats it without installing whole NE4 .
Click to expand...
Click to collapse
I haven't tried any LP roms, so the best I could do is parrot back what I read in the threads. Correct on the flashing instructions, I have read of many doing so to go to LP. Others flashed the ROM first and then booted. They had issues with wifi, bluetooth, data, calls, etc until they went back and flashed the bootloader and modem.

Question on upgrading bootloader and modem on i747

I currently have bootloader and radio at version I747UCUEMJB that I would like to upgrade all the way to I747UCUFNJ2.
Can I do a jump from MJB straight to NJ2 or I would need to upgrade sequentially ie MJB->NE4->NJ2?
Also, I found this website: http://androidromupdate.com/att-samsung-galaxy-s3-sgh-i747-odin-stock-firmware/ and it has the links to the NE2 and NJ2 firwares, however, the file's size is about 900MB. Does modem and bootloader really need 900MB or is the file actually bundling everything together ie modem+bootloader+ROM = 900MB?
If latter, where can I find working links that only offer the modem and a bootloader to be flashed?
Thanks!!

The safest way would be to use Odin to flash this full NE4 firmware update. Once you're up on stock NE4, you can take OTA updates. You'll go from NE4 -> NJ1 -> NJ2.
enewman17 has posted everything you need to update manually linked to this thread. If you go this route, read that thread carefully, then read it again and make certain you understand it. You have to update sequentially MJB -> NE4 -> NJ1 -> NJ2, and you have to reboot into system between every firmware update. Be super careful if you go this route. This phone is easy to hard brick when messing with bootloader and modem.

@jason2678,
Thanks for a reply. I was using this site: http://androidromupdate.com/att-samsung-galaxy-s3-sgh-i747-odin-stock-firmware/ as my main software source and the available android software goes straight from NE4 to NJ2. So just to double confirm, I can not make a jump from NE4 straight to NJ2, correct?
I tried to do OTA while on NE4, but I do not get any update push notifications. It says all of my software is up to date.
jason2678 said:
The safest way would be to use Odin to flash this full NE4 firmware update. Once you're up on stock NE4, you can take OTA updates. You'll go from NE4 -> NJ1 -> NJ2.
enewman17 has posted everything you need to update manually linked to this thread. If you go this route, read that thread carefully, then read it again and make certain you understand it. You have to update sequentially MJB -> NE4 -> NJ1 -> NJ2, and you have to reboot into system between every firmware update. Be super careful if you go this route. This phone is easy to hard brick when messing with bootloader and modem.
Click to expand...
Click to collapse

user-747 said:
@jason2678,
Thanks for a reply. I was using this site: http://androidromupdate.com/att-samsung-galaxy-s3-sgh-i747-odin-stock-firmware/ as my main software source and the available android software goes straight from NE4 to NJ2. So just to double confirm, I can not make a jump from NE4 straight to NJ2, correct?
I tried to do OTA while on NE4, but I do not get any update push notifications. It says all of my software is up to date.
Click to expand...
Click to collapse
No, don't try to go straight from NE4 to NJ2. It needs to go NE4 -> NJ1 -> NJ2; the firmware order is in the bottom of enewman17's first post in his firmware thread.. Update the firmware sequentially, and do a full reboot into system in between each firmware update.
The full reboot part is faster if you are using a custom rom as you update because if you try to update firmware without updating a Touchwiz rom it probably won't boot.

I think I start to understand.
updates NE4->NJ1 and NJ1->NJ2 are not updating everything in the Android. Those are just some *incremental* feature enhancements to various facets of OS, bootloaders and modems; hence, it now makes sense why their size is so small.
Q. Does this mean I will not lose any personal settings/apps/etc in my already configured OR it resets and I will have to re-install the apps?
Also, can I use Android's recovery (Volume UP + Home) instead of suggested TWRP or CWM? is there a reason why we should do it through custom recovery?
Lastly, I read somewhere that both modem and bootloader must be of the same version. When I do 'adb bugreport', I get
Build fingerprint: 'samsung/d2uc/d2att:4.4.2/KOT49H/I747UCUFNE4:user/release-keys'
Bootloader: I747UCUFNE4
Radio: msm
However when I use PhoneInfo app, I get
Bootloader Version: I747UCUFNE4
PDA Version: I747UCUFNE4
CSC Version: I747UCUFNE4
Baseband Version: I747UCUFNE4
Latest Firmware: N/A
Q. What is Phone: msm? I thought Phone should be equal to I747UCUFNE4 as well.
Can I or can I not proceed with an installation of the NJ1 given my current spec?
Also, some random questions:
1) Will my present OS work with NJ1 or NJ2 ( I am currently on NE4) or do I need to update the OS as well?
2) if I need to also install the NJ1 ROM,
will I need flash bootloader first, reboot into NE4 OS, reboot again into recovery and install NJ1 ROM
OR
I have to install bootloader and ROM, all at the same time within the recovery without any reboots?
Thanks!
jason2678 said:
No, don't try to go straight from NE4 to NJ2. It needs to go NE4 -> NJ1 -> NJ2; the firmware order is in the bottom of enewman17's first post in his firmware thread.. Update the firmware sequentially, and do a full reboot into system in between each firmware update.
The full reboot part is faster if you are using a custom rom as you update because if you try to update firmware without updating a Touchwiz rom it probably won't boot.
Click to expand...
Click to collapse

user-747 said:
Q. Does this mean I will not lose any personal settings/apps/etc in my already configured OR it resets and I will have to re-install the apps?
Click to expand...
Click to collapse
If you're running a stock rom, you need to reflash it at each step. With stock roms, you need to use the NE4 rom on the NE4 modem, the NJ1 rom with the NJ1 modem, etc. If you don't update the rom too, then it might not boot if the rom doesn't match the modem. Even if it does boot up, you'll likely have problems like wifi not turning on. I'm not sure if you can "dirty flash" those rom zips without wiping (and keep settings and app data), or if that will fail to boot. I'd search the enewman thread for help on that. When I used these I was running CM 12.1, so I didn't have to mess with the rom. Custom roms are more flexible than stock roms in what bootloader/modem they'll work right on.
user-747 said:
However when I use PhoneInfo app, I get
Bootloader Version: I747UCUFNE4
PDA Version: I747UCUFNE4
CSC Version: I747UCUFNE4
Baseband Version: I747UCUFNE4
Latest Firmware: N/A
Q. What is Phone: msm? I thought Phone should be equal to I747UCUFNE4 as well.
Can I or can I not proceed with an installation of the NJ1 given my current spec?
Click to expand...
Click to collapse
Sounds to me like you're on the NE4 bootloader, modem, and rom. You can confirm by entering this in an adb shell or a terminal app:
Code:
getprop ro.bootloader
getprop gsm.version.baseband
user-747 said:
Also, some random questions:
1) Will my present OS work with NJ1 or NJ2 ( I am currently on NE4) or do I need to update the OS as well?
2) if I need to also install the NJ1 ROM,
will I need flash bootloader first, reboot into NE4 OS, reboot again into recovery and install NJ1 ROM
OR
I have to install bootloader and ROM, all at the same time within the recovery without any reboots?
Click to expand...
Click to collapse
Nope, an NE4 rom might not boot on NJ1/2 firmware, and even if it does boot up something will be screwed up like wifi not turning on or no mobile data. To make it easier I'd just flash LOS or OctOs before messing with bootloader/modem. LOS 14 should boot on any kitkat bootloader/modem (NE4, NJ1, or NJ2).
Touchwiz roms can be finicky about booting up sometimes, first boot will last 10 - 20 minutes on a new rom, and you don't want boot to fail in between these bootloader/modem flashes. To keep it simple and faster, I'd just run a custom rom like LOS while you're updating even if you go back to stock NJ2 once you're done and everything is up to date.

@jason2678,
Thanks for your reply with the details and adb how-tos. Adb confirmed that both my bootloader and modem are indeed I747UCUFNE4. Not too long ago I flashed NE4 (CP, AP, BL, CSC) via Odin and it was very encouraging to see the same results via adb.
From what I gather, all in all, the amount of risk/benefit ratio is quite high in the context of moving from NE4 to NJ1.
Yeah, I was on LOS14 before and it was very extremely choppy on my i747. OctOs was much smoother but the dialer would not open up and image processing (photo viewing) was not very good. So that is why I flashed everything to stock NE4.
Few more questions..
I see the link for the rooted NJ1 rom, but are there unrooted NJ1 Roms available or do I have to unroot myself?
If I decide to proceed to NJ1, do I install BL/CP and ROM at the same time or I install CP/BL first, reboot and then ROM?
I see that there are two flavors of NJ1 BL/CP. One is 68MB and the other is 19MB. Which one do I use?
Thanks,

user-747 said:
Few more questions..
I see the link for the rooted NJ1 rom, but are there unrooted NJ1 Roms available or do I have to unroot myself?
If I decide to proceed to NJ1, do I install BL/CP and ROM at the same time or I install CP/BL first, reboot and then ROM?
I see that there are two flavors of NJ1 BL/CP. One is 68MB and the other is 19MB. Which one do I use?
Thanks,
Click to expand...
Click to collapse
Sorry, I'm entirely certain how to go about flashing those bootloader/modem combos with stock ROMs. Those details might be covered in enewman's thread. If I had to do it, I'd just flash OctOs and set it up first, so the reboots would be quicker and it would work with any of the modems.
I flashed that nj1 rom once. It's not actually pre-rooted. It asks if you want to root after it flashes system, so you can choose not to root it.
I don't know why there would be two different nj1's. Maybe one is just the modem and the other is bootloader and modem? I'd pick the one with both bundled. You always want them to match on this phone on the firmware with Knox. Only flash stuff enewman packaged. He's the man for i747 firmware.

Yes, for for sure - I want to use only enewman's packages. The thing is: in his post at https://forum.xda-developers.com/galaxy-s3-att/general/ucufne4-to-ucufnj1-update-t2941792
he lists two NJ1 bootloader/modem files from what I can understand.
1) 68MB https://www.androidfilehost.com/?fid=95784891001611091
2) 19MB https://www.androidfilehost.com/?fid=95832962473396872
Still trying to figure out which one to use...
jason2678 said:
Sorry, I'm entirely certain how to go about flashing those bootloader/modem combos with stock ROMs. Those details might be covered in enewman's thread. If I had to do it, I'd just flash OctOs and set it up first, so the reboots would be quicker and it would work with any of the modems.
I flashed that nj1 rom once. It's not actually pre-rooted. It asks if you want to root after it flashes system, so you can choose not to root it.
I don't know why there would be two different nj1's. Maybe one is just the modem and the other is bootloader and modem? I'd pick the one with both bundled. You always want them to match on this phone on the firmware with Knox. Only flash stuff enewman packaged. He's the man for i747 firmware.
Click to expand...
Click to collapse

Pretty sure the 19.8 mb one is the one I used.
https://androidfilehost.com/?fid=95832962473396872

@jason2678,
Thanks!! I will use the 19.8MB one then.
Just burned TWRP over the stock recovery.
Tomorrow I will go to Samsung Experience center over at Best buy. I heard that they bring samsung phones to the most recent available updates. We'll see how that will go. If this route will not lead anywhere, then I will burn NJ1 and NJ2 myself.
jason2678 said:
Pretty sure the 19.8 mb one is the one I used.
https://androidfilehost.com/?fid=95832962473396872
Click to expand...
Click to collapse

So I went to Samsung Experience Center and guess what? My phone got upgraded from Ne4 to Nj2 directly. It took about 15 minutes. So all is working right now and I am happy to have the most recent update. It was really interesting to observe how they do it. After they connected the phone via USB and clicked something on their computer, the phone went directly from GUI into download mode without ever rebooting. I suppose they have some keys that open up a whole range of options on the phone.
The only problem that I discovered, and this has nothing to do with an upgrade, is that kit Kat is missing WebView and Google no longer supports WebView for KitKat for 442. Looking for alternatives now....
Thanks again, @jason2678, for all your help! I learned a ton. Thank you, Samsung Experience Center , for making things so easy for regular folks (who just want to use their up-to-date phone) like myself!!
user-747;76586060 [user=5927992 said:
@jason2678[/user],
Thanks!! I will use the 19.8MB one then.
Just burned TWRP over the stock recovery.
Tomorrow I will go to Samsung Experience center over at Best buy. I heard that they bring samsung phones to the most recent available updates. We'll see how that will go. If this route will not lead anywhere, then I will burn NJ1 and NJ2 myself.
Click to expand...
Click to collapse