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How to install 4.4 on Rooted S4 I337 MF3?

Hey guys,
Can someone help me with this, I am looking for instructions on how to install 4.4 kitkat on AT&T unlocked rooted S4 I337 MF3.
Been searching the forums and can not find instructions for this. Please any help would be greatly appreciated!
::good:

You cant...bootloader is locked all you can do is install safestrap and flash other 4.2.2 touchwiz roms
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mg2195 said:
You cant...bootloader is locked all you can do is install safestrap and flash other 4.2.2 touchwiz roms
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
hmmm, so we can not get 4.4 kitkat? are the other 4.2.2 roms much better?

Rooted AT&T 4.3 MK2 upgrading to 4.4.2 (and root)?

Hi,
My S4 was rooted using vroot. I've disabled the updates so it's still on 4.3 MK2.
Is there a safe process to upgrade to the latest 4.4.2? Any way to keep root or re-root?
Thanks

I haven't tried this but I read it with interest yesterday
http://forum.xda-developers.com/showthread.php?t=2719434
Sent from my GT-I9505 using Tapatalk

Can't find AT&T 4.4 at http://www.sammobile.com/firmwares/
I thought the news said it's released. Is that true?
Thanks

I don't know. I'm in the UK so I don't see that news
Sent from my GT-I9505 using Tapatalk

Might be a good idea to look here:
http://forum.xda-developers.com/galaxy-s4-att

[Q] Cyanogenmod installer confirmed working with AT&T GS4 SGH-I337?

The question is will my device work with the jflteusc version of the CyanogenMod Installer? I have a AT&T Samsung Galaxy S4 SGH-I337. I heard of the new CyanogenMod installer and looked at the supported devices. I saw a jflteusc (US Cellular). I don't knoiw if it will work with my AT&T S4. I don't want to **** up my phone. I'm currently on 4.4.2 NB1 stock rooted. The website I am referencing is http://wiki.cyanogenmod.org/w/CyanogenMod_Installer Any help would be great!

iTzz_KAMIKAZE said:
The question is will my device work with the jflteusc version of the CyanogenMod Installer? I have a AT&T Samsung Galaxy S4 SGH-I337. I heard of the new CyanogenMod installer and looked at the supported devices. I saw a jflteusc (US Cellular). I don't knoiw if it will work with my AT&T S4. I don't want to **** up my phone. I'm currently on 4.4.2 NB1 stock rooted. The website I am referencing is http://wiki.cyanogenmod.org/w/CyanogenMod_Installer Any help would be great!
Click to expand...
Click to collapse
Did you use safestrap and deadly venom kitmat magic tool in install 4.4.2 stock rooted? If so, you cannot get CM to work.

Yes I did. If I upgrade to NC1 stock unrooted, would that work?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

You have a locked boot loader that prevents from changing the kernel. So, no.
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Tap on the link I put in the thread and read the FAQs
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iTzz_KAMIKAZE said:
Tap on the link I put in the thread and read the FAQs
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
There has to be a reason why only ATT S4 is missing from the list, right?

Yea I downloaded the app and it said device unsupported
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Has anyone ventured to trying the installer in the unsupported mode? Is there a reasoning behind this and safe to try if I'm already rooted and TWRP? I thought there already was an ATT compatible build.

DaRacerz said:
Has anyone ventured to trying the installer in the unsupported mode? Is there a reasoning behind this and safe to try if I'm already rooted and TWRP? I thought there already was an ATT compatible build.
Click to expand...
Click to collapse
If your bootloader/firmware were MDB or MDL you could try it. Above that there is no exploit for the bootloader out yet so you can not install the CM.

Yes I'm on the same adventure with my sgh-i337. I'm going back and forth between MK2 and NB1 ROMs but cannot get MDL or MDB flashed at all. I got them from samfirmware and Odin fails. I tried kies and it says firmware available is MDL ... Well great, but then it says device not recognized!
I'm really torn between why is it we can get to MDL to flash CM?
Instructions:
http://wiki.cyanogenmod.org/w/Install_CM_for_jflteatt
Edit: once updated to MK2 there is no going back. Bootloders are locked and that is the end of the story. No more CM or CWM recovery or Loki ... Just safestrap and custom ROMs.
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

Just as a final reference for all: CM installer is not for the I337.
On MF3 and above, we have no exploit for ROMs and Cyanogenmod is not compatible with our stock kernel.
Even on MDB/MDL it won't work because you need Loki which the installer doesn't take care of AFAIK (if it were to even let you open it).
Sent from my SGH-I337 running GPE

[Q] MK2 to NB1

Hello guys
I have Rooted s4 mk2 SS and I want to upgrade to kitkat.
What is the easiest way to upgrade?
:laugh:

http://forum.xda-developers.com/showthread.php?t=2680868
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7mada said:
Hello guys
I have Rooted s4 mk2 SS and I want to upgrade to kitkat.
What is the easiest way to upgrade?
:laugh:
Click to expand...
Click to collapse
Here are a couple options to get to stock NC1: http://forum.xda-developers.com/showthread.php?t=2730144

jmjoyas said:
http://forum.xda-developers.com/showthread.php?t=2680868
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
This will give me stock 4.4?

7mada said:
This will give me stock 4.4?
Click to expand...
Click to collapse
Correct

muniz_ri said:
Correct
Click to expand...
Click to collapse
Should I flash the rom over stock or on rom slot? Using the magic tool

jmjoyas said:
http://forum.xda-developers.com/showthread.php?t=2680868
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Click to expand...
Click to collapse
Should I flash the rom over stock or on rom slot?

7mada said:
Should I flash the rom over stock or on rom slot?
Click to expand...
Click to collapse
If you are using safe strap 3.72 (kitkat) the only option is to flash the rom slot. As far as i know, rom slots are not supported yet in this version.

unknown.1 said:
If you are using safe strap 3.72 (kitkat) the only option is to flash the rom slot. As far as i know, rom slots are not supported yet in this version.
Click to expand...
Click to collapse
Ok now for the magic tool way to upgrade to 4.4, as I am on 4.3 should I use 3.72?
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7mada said:
Ok now for the magic tool way to upgrade to 4.4, as I am on 4.3 should I use 3.72?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
The ultimate goal is to run a kit kat rom right? Are you running pure MK2 or is your baseband NB1?
You use the magic tool to get your phone running a rooted rom with the NB1 baseband. This allows you to flash the 4.4.2 TW based roms using SS 3.72.

unknown.1 said:
The ultimate goal is to run a kit kat rom right? Are you running pure MK2 or is your baseband NB1?
You use the magic tool to get your phone running a rooted rom with the NB1 baseband. This allows you to flash the 4.4.2 TW based roms using SS 3.72.
Click to expand...
Click to collapse
I am on pure mk2 and the first step in the method to upgrade is to flash a 4.4 rom, my question is what SS version should I use?
Sent from my SAMSUNG-SGH-I337 using Tapatalk

7mada said:
I am on pure mk2 and the first step in the method to upgrade is to flash a 4.4 rom, my question is what SS version should I use?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
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Click to collapse
Yes 3.72 (per the upgrade documentation)

S4 Not update

Hey. I Have S4 I337 At&t . And I Have Problem That Im Not Able To Update My Cell To Kitkat NEither Lollipop I Have 4.3 Jb Whenever i Update It says That Its Interupted Plz Try Again 24 Hours
I hve Been Trying This Been Many Times... Plz solve the Solution
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Try a coustmrom

How To Install I Have Running 4.3 Jb On it
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Nomansuny said:
How To Install I Have Running 4.3 Jb On it
Click to expand...
Click to collapse
See the following:
[INDEX] All things AT&T [MK2 NB1 NC1 NI1 NJ4 NJ5 OC3 OC4] and ROM List
[How-To] I installed a custom Lollipop ROM on my AT&T Galaxy S4 and it was easy!
[How-To] Update to I337_OC4 - 5.0.1 and KeepRoot