I337UCUFNB1_100%_Stock_Rooted_ROM & I337_MK2toNB1_KeepRoot_OTA.zip

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Royal_Son

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Apr 22, 2014
20
4
45
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meettomy.site
These are my phones info. Which one do I download. Nb1 downgrade or nb1 downgrade with no bootloader.

Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
 

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Apoplectic1

Senior Member
Aug 19, 2012
389
204
Orlando
.rar files are compressed files, they can be extracted. :)

If you are not familiar with .rar files, download and install the free and open source application 7zip, it handles most compression formats.

Thanks man! Now that I read that I realize I should have known that :silly:

Got it up and running, upgraded to NC1_OTA and I'm ready to rock.
 
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muniz_ri

Senior Member
Jun 27, 2012
3,257
4,981
Just wanted to say thanks with real words...not just the button. I spent 2 days figuring out the best way to nuke my original SS and root and get OTA'd up to NB1 from ancient MF3 with the original first GS4 working Safestrap version and then rerooted and able to flash new KK ROMs. After 3 different directions through like 10 different posts, THIS ONE was the one that worked. Thank you! I now have rooted NB1 with tehering even. :) YAY! Now to see what tasty KK ROMS I can run. :)

Glad to hear it!
 

Bjay12

Member
Jun 4, 2014
8
1
Rooted S4 mk2 go back to stock and update to NB1 stock

I have a GALAXY S4 SGH-i337 running baseband MK2 rooted using the safe root method, I would like to go back to stock, and get kitkat, Would it brick my phone if I used SuperSU's Full unroot, and then took the OTA to AT&T's latest kitkat build?

---------- Post added at 03:43 PM ---------- Previous post was at 03:22 PM ----------

I have a GALAXY S4 SGH-i337 running baseband MK2 rooted using the safe root method, I would like to go back to stock, and get kitkat, Would it brick my phone if I used SuperSU's Full unroot, and then took the OTA to AT&T's latest kitkat build?

Also, Will this remove the "custom" icon, as well as any other traces of root? Basically, I would like to go back to complete 100% stock, as If I had just purchased it, as a new device.
 

loganfarrell

Senior Member
Mar 11, 2014
285
146
Google Pixel 8 Pro
I have a GALAXY S4 SGH-i337 running baseband MK2 rooted using the safe root method, I would like to go back to stock, and get kitkat, Would it brick my phone if I used SuperSU's Full unroot, and then took the OTA to AT&T's latest kitkat build?

---------- Post added at 03:43 PM ---------- Previous post was at 03:22 PM ----------



Also, Will this remove the "custom" icon, as well as any other traces of root? Basically, I would like to go back to complete 100% stock, as If I had just purchased it, as a new device.

Download and run Triangle Away. Then unroot. That will remove the "custom" bootlogo. Or you could not unroot. Because root is awesome.
 
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H82sk81968

New member
Jun 5, 2014
1
1
Just had to say THANKS this worked great. I've been pulling my hair out for 2 days to root this bugger. Looked at this thread 2-3 times but didn't realize it was the one I needed. Great work!
 
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ChauKhanh

Senior Member
Feb 5, 2014
53
3
Hi all, I'm on i337UCUEMK2 4.3, i want up to 4.4.2 . Can I use this method for my S4 ? Thanks all !
 

BrianGaston

New member
Jun 8, 2014
1
0
First root attempt

There should be no need to first flash the NB1 Full Odin tar when starting from factory stock NC1. The fastest way to rooted, stock NC1 is to flash the NB1toMK2 downgrade tar, root, install safestrap, flash the NC1 100% Stock Rooted ROM then flash the NC1 kernel and you are done.

This is my first root attempt and I kind of understand the process but, where do I get the files? and do I need to flash from nc1 to nb1 or can I start from stock nc1?

---------- Post added at 09:11 AM ---------- Previous post was at 08:54 AM ----------

You know there has not been to much on the net about this so to find this I am very great full to all who participated.
But I have not rooted a phone before , although I am pretty good with stuff like this, paying a pretty penny for my phone I am to afraid of trying this without having a start to finish tutorial and the links needed to do the root process.
So my Question is if there is anyone kind enough and with the knowledge, that could make a youtube tutorial on exactly how to do this starting from nc1 stock and can also give all the links to everything needed to do so? Thanks to all contributors
 

loganfarrell

Senior Member
Mar 11, 2014
285
146
Google Pixel 8 Pro
This is my first root attempt and I kind of understand the process but, where do I get the files? and do I need to flash from nc1 to nb1 or can I start from stock nc1?

---------- Post added at 09:11 AM ---------- Previous post was at 08:54 AM ----------

You know there has not been to much on the net about this so to find this I am very great full to all who participated.
But I have not rooted a phone before , although I am pretty good with stuff like this, paying a pretty penny for my phone I am to afraid of trying this without having a start to finish tutorial and the links needed to do the root process.
So my Question is if there is anyone kind enough and with the knowledge, that could make a youtube tutorial on exactly how to do this starting from nc1 stock and can also give all the links to everything needed to do so? Thanks to all contributors

Read the OP for the NC1 ROM thread. Others have asked for video tuts too, but it's not needed if you are capable of reading the OP of that thread. Very detailed step-by-step is available there.
 

loganfarrell

Senior Member
Mar 11, 2014
285
146
Google Pixel 8 Pro
Thanks bro, I'm newbie, I haven't flash at all time Can you guide me more details. Thank you !

Once again, the OP is the place to look. If you need a tutorial on flashing in general, that's when I suggest a Youtube search. Other than that though, you can PM me with specific questions. I don't have the time to do a full tutorial or explanation of the process, but I'd be happy to answer questions once you watch a vid or 2 about how to flash ROMS with SS and read the OP thoroughly. Good luck, man!
 

muniz_ri

Senior Member
Jun 27, 2012
3,257
4,981
This is my first root attempt and I kind of understand the process but, where do I get the files? and do I need to flash from nc1 to nb1 or can I start from stock nc1?

---------- Post added at 09:11 AM ---------- Previous post was at 08:54 AM ----------

You know there has not been to much on the net about this so to find this I am very great full to all who participated.
But I have not rooted a phone before , although I am pretty good with stuff like this, paying a pretty penny for my phone I am to afraid of trying this without having a start to finish tutorial and the links needed to do the root process.
So my Question is if there is anyone kind enough and with the knowledge, that could make a youtube tutorial on exactly how to do this starting from nc1 stock and can also give all the links to everything needed to do so? Thanks to all contributors

thanks @loganfarrell for offering to help here.
@BrianGaston this method is intended for those with a baseline understanding of the info plastered all over xda. It is not intended for first time xda visitors without that baseline of understanding because the risk of bricking your very expensive phone is real. Please invest time in reading and researching. We are all more willing to help those that first attempt to help themselves. Thanks
 

cmdru1980

Senior Member
May 8, 2011
184
26
44
Desoto, TX
I can't get any kk roms for ss & NC1 to work. I'm not good with ss. I'm used to cwm but, this one came with nc1 & I heard I can't put cwm on it because that. But that's thanks muniz_ri. This post helped get me rooted and through the process.

Sent from my SGH-I337 using XDA Premium 4 mobile app
 

Green Wenonah

Member
Nov 28, 2012
30
1
Oak Harbor, WA
Hey guys...
I had a bit of trouble following the instructions in Post 3, (2nd method). I had already soft-bricked upgrading from a previously rooted MK2 using other methods and eventually had to go on to a full NC1 flash (with bootloader) to unbrick. Then I tried following these instructions. Everything went well until flashing the kernel via Odin... at that point I froze in ATT splash animation for half an hour. After trying a few more times, I decided to stop before the kernel flash and it worked fine. I don't know what the other kernel is supposed to provide but I now have...

Rooted S4
Android: 4.4.2
Baseband: I337UCUFNC1
Kernel: 3.4.0-1125940 (dpi@SWDD5916 #1) Dated March 25th
Build: KOT49H.I337UCUFNC1

I believe this is the kernel it is supposed to be. Did the ROM get updated with the correct kernel without the instructions for installing the kernel separately getting culled? Is there something about the kernel supplied in the ROM that I should be worried about?

Next step is to freeze AT&T Update so I don't have to worry about them screwing with me again.
 

loganfarrell

Senior Member
Mar 11, 2014
285
146
Google Pixel 8 Pro
Hey guys...
I had a bit of trouble following the instructions in Post 3, (2nd method). I had already soft-bricked upgrading from a previously rooted MK2 using other methods and eventually had to go on to a full NC1 flash (with bootloader) to unbrick. Then I tried following these instructions. Everything went well until flashing the kernel via Odin... at that point I froze in ATT splash animation for half an hour. After trying a few more times, I decided to stop before the kernel flash and it worked fine. I don't know what the other kernel is supposed to provide but I now have...

Rooted S4
Android: 4.4.2
Baseband: I337UCUFNC1
Kernel: 3.4.0-1125940 (dpi@SWDD5916 #1) Dated March 25th
Build: KOT49H.I337UCUFNC1

I believe this is the kernel it is supposed to be. Did the ROM get updated with the correct kernel without the instructions for installing the kernel separately getting culled? Is there something about the kernel supplied in the ROM that I should be worried about?

Next step is to freeze AT&T Update so I don't have to worry about them screwing with me again.

That's the correct kernel. You were probably trying to flash the wrong one. When you did your NC1 flash or whatever, you probably updated your kernel. As long as all is well, i guess it's no big deal either way. The ROM itself contains no kernel though.
 
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    The following is not a root method in the "traditional" sense, e.g. Saferoot, Kingo. This is a workaround to our inability to root KitKat 4.4.2. However the end result is a Fully Functioning, 100% Stock, Rooted, NB1 Device. (See Post# 2 for "KeepRoot"OTA.zip Method). Proceed at Your Own Risk! (Thanks to @ted77usa @rebel1699 @Maribou @dave5777 @dolph8886 @Surge1223 @jeboo for discoveriing it was possible to downgrade from MK2 to NB1. Special thanks to @rebel1699 for figuring out how to flash a 4.4 SS Custom ROM on our device. Without them this workaround would not be possible).


    **Closing my thread now that a direct rooting method is available. Congrats to Everyone mentioned above for your accomplishments while we waited for this!** : http://xdaforums.com/showthread.php?t=2783157


    **Note**: The process below has been proven to work without exception when the instructions are followed to the letter. Should you run into trouble please consider re-reviewing the instructions to identify your error before requesting assistance. Thank you.

    Get the latest I337 firmware here: I337UCUFNC1


    Donations Welcome!




    Here it is: I337UCUFNB1_100%_Stock_Rooted_ROM

    And here: I337UCUFNB1_100%_Stock_Rooted_ROMwBL (This version contains the NB1 bootloader. MK2 bootloader users will not be able to go back to factory stock MK2 after flashing).

    1. Place the I337UCUFNB1_100%_Stock_Rooted_ROM in the root of your ext sdcard.
    *2. Download the I337_Downgrade_to_MK2 file, extract the .tar and flash in PDA slot in Odin(AP in Odin v3.09+) to obtain semi-functioning(no-wifi) MK2.
    3. Use your favorite root method to root MK2, e.g. Saferoot, Kingo Root App, then install the latest Safestrap-JFLTE-3.72-kk-B01.apk.
    4. Boot into Safestrap recovery, perform an "Advanced Wipe", and wipe everything except ext sdcard.
    5. Flash the ROM zip in the "Stock Slot." Once complete press "Home," then reboot into "Download Mode".
    6. Flash the I337_NB1_Stock_Kernel in PDA slot in Odin(AP in Odin v3.09+).

    *MK2 users can skip Step 2.

    Once complete the phone will apply an update to cache, then reboot and pause on the white AT&T splash screen for about 1-2 minutes before completely rebooting. Done!



    - MK2 users can use Safestrap's Backup/Restore function to backup and restore User Data prior to and after flashing the ROM. Make sure and thank @loganfarrell for discovering this very useful feature.
    - In general, to flash a different 4.4.2 Safestrap Custom ROM after flashing this ROM reboot into Safestrap recovery, perform an advanced wipe, and wipe everything but ext sdcard. Then flash the new ROM in the "Stock Slot" and reboot (Refer to the other ROM's dedicated thread for any additional requirements or for assistance. Please limit the discussion in this thread to the 100%_Stock_Rooted_ROM and the KeepRoot OTA zip).
    - To go back to factory stock, un-rooted NB1 flash the NB1 4.4.2 Stock Odin .tar in the PDA slot in Odin(AP in Odin v3.09+).
    - Those that never took the MK2 to NB1 update can return to factory stock MK2 by flashing the MK2 All-in-One Full Odin .tar in PDA slot in Odin(AP in Odin v3.09+).


    Known Issue: MK2 bootloader users will experience a lockscreen settings issue. The issue can be resolved by flashing the FMLD_Bootloader in Odin's PDA slot(AP in Odin v3.09+). You will still be able to revert back to factory stock MK2. Caution!: NB1 & NC1 bootloader users should not flash this file as it may hardbrick your phone.





    I337UCUFNB1_100%_Stock_Rooted_TetherAddOn
    Instructions:
    1. After flashing and booting into I337UCUFNB1_100%_Stock_Rooted_ROM,
    2. Place the AddOn in ext sdcard.
    3. Reboot into Safestrap recovery and flash the AddOn in Stock Slot (Do Not Wipe Prior to Flashing)
    4. Reboot. Done!
    25
    I337UCUFNB1_MK2-to-NB1_KeepRoot_OTA.zip Method

    This alternative "Keep Root" method uses a modified version of the official MK2 to NB1 OTA Update.zip to upgrade while maintaining User Data and Root Access! The file is flashed in Safestrap and the end result is a 100% Stock, Rooted, NB1 Device. Proceed at your own risk! Thanks to @jeboo for giving me the idea to develop this method!

    **Prerequisite** This method requires that your MK2 system is 100% stock except for root and Safestrap. The update will fail if any MK2 system files have been modified or deleted, e.g. thru Xposed, etc. You must first restore the stock files or reflash back to stock MK2 and re-root.



    Here it is: I337_MK2toNB1_KeepRoot_OTA.zip

    And here: I337_MK2toNB1_KeepRoot_OTAwBL.zip (This version contains the NB1 bootloader. MK2 bootloader users will not be able to go back to factory stock MK2 after flashing).

    1. Place the I337UCUFNB1_MK2toNB1_KeepRoot_OTA.zip in the root of your ext sdcard.
    2. Follow steps 2 - 3 from Post# 1 to downgrade to MK2, root, and install the latest Safestrap-JFLTE-3.72-kk-B01.apk .
    3. Boot into Safestrap recovery but Do Not Wipe!.
    4. Flash the I337UCUFNB1_MK2toNB1_KeepRoot_OTA.zip in the "Stock Slot" and once complete press "Home" and reboot into "Download Mode".
    5. Last, flash the I337_NB1_Stock_Kernel in Odin's PDA slot(AP in Odin v3.09+).

    Once complete the phone will reboot to the white AT&T splash screen then "optimize apps" before completely rebooting. Done!




    Known Issue: Safestrap.apk will force close after updating to 4.4.2 using this method, however Safestrap recovery will continue to function. Optional: to manually uninstall Safestrap recovery use Es File Explorer to delete system/etc/safestrap and system/bin/e2fsck then rename system/bin/e2fsck.bin to e2fsck (save these files if you wish to manually reinstall Safestrap at a later time).







    I337UCUFNB1_100%_Stock_Rooted_TetherAddOn
    Instructions:
    1. After flashing and booting into I337UCUFNB1_100%_Stock_Rooted_ROM,
    2. Place the AddOn in ext sdcard.
    3. Reboot into Safestrap recovery and flash the AddOn in Stock Slot (Do Not Wipe Prior to Flashing)
    4. Reboot. Done!
    4
    I'm guessing that this is for both NB1_Stock and NB1_Stock with tethering ROM? To flash the NB1 KernekModules.zip

    Sent from my A210 using XDA Premium 4 mobile app

    Just an FYI, the NB1 modules are built into the ROM, so there is no need to reflash them or push them into system.
    4
    Just a quick update: earlier today I got my S4 running rooted and running 4.3 with Safestrap and the Wifi antenna fix. It's been working like a charm, and I can finally get full use out of my phone. The whole process was a bit more agonizing that I was expecting, but the important thing is that now everything works the way I want it to, and I am loving it. You guys are the best. :good:

    So happy this worked! Great job to all who made this possible! :)


    I'm testing an alternative root workaround method which, for some, may be an easier process. It looks promising but we shall see........
    4
    thanks for that info. i see theres quite a lengthy and technical thread on unlocking. ill have to keep an eye on that. i did manage to find a 2gb sdcard thatll work for now. if xposed works fully, ill be happy for now. but bootloader will need to be unlocked for future updates past kitkat and when att stops providing updates. if i know att, this may be the last update from them...

    Oh to get rid of the startup noise, after installing this rom, use ES Explorer to navigate to /system/media/audio/ui and find PowerOn.ogg . Rename it to PowerOn.BAKogg

    Now your phone cannot find that obnoxious sound when it starts up and will be soothingly silent.