Database Users

Try new firmware on S4 without rooting possible?

Hi All,
Am using an i337M S4 from Rogers here in Canada and was wondering if it was possible to use ODIN and try out the new leaked 4.4 firmware. Is rooting required to achieve this?

rsarwar said:
Hi All,
Am using an i337M S4 from Rogers here in Canada and was wondering if it was possible to use ODIN and try out the new leaked 4.4 firmware. Is rooting required to achieve this?
Click to expand...
Click to collapse
First you must be certain the leak is for i337m model becuase there is the international version and the US version which are both different from the model you have (I have the same but Telus). Now as far as the files, if they are in .tar format then you can flash via Odin, if thet are .zip then you need a custom recovery to flash them. I know for certain you need to root to go the custom recovery route, I think you need to be rooted to flash they system files in Odin also (which if it is a stock rom you are flashing would loose root following the flash). Depending of the root method you choose be aware also that you may trip the Knox counter also, definately if you install a custom recovery. There a number of 4.4 roms for the i337m already that are not stock and are rooted, you may want to look at these also. Most importantly... before you attempt anything read...read ... read... there are pity falls you can end up in if you don't pay close attention......

Gage_Hero said:
First you must be certain the leak is for i337m model becuase there is the international version and the US version which are both different from the model you have (I have the same but Telus). Now as far as the files, if they are in .tar format then you can flash via Odin, if thet are .zip then you need a custom recovery to flash them. I know for certain you need to root to go the custom recovery route, I think you need to be rooted to flash they system files in Odin also (which if it is a stock rom you are flashing would loose root following the flash). Depending of the root method you choose be aware also that you may trip the Knox counter also, definately if you install a custom recovery. There a number of 4.4 roms for the i337m already that are not stock and are rooted, you may want to look at these also. Most importantly... before you attempt anything read...read ... read... there are pity falls you can end up in if you don't pay close attention......
Click to expand...
Click to collapse
Thanks for the reply .. actually I had a S2 before which was rooted and I used many different ROMs on it. I did root the S4 once as well but then lost it when I did the 4.3 update. Since then I never tried to re-root, is there an easy way too root right now for the i337M with 4.3?

If you are on stock unrooted 4.3 you should get official 4.4 update soon.
Also, questions go in the qna section not the development section
Sent from my SGH-I337 using Tapatalk

RK said:
If you are on stock unrooted 4.3 you should get official 4.4 update soon.
Also, questions go in the qna section not the development section
Sent from my SGH-I337 using Tapatalk
Click to expand...
Click to collapse
If you wait for the update you will likely be waiting longer for a root solution... if you want to root the phone, look up chainfire's CF-auto root for i337m

[Q] Rooting S4 (Build No. NC1)

I am new to flashing so sorry if I have asked some stupid questions.
I have SGH-I337 (ATT) and would like to root and then maybe install Cyanogenmod or any other custom ROM.
Device Details:
Baseband - NC1
Build No. - NC1
Android Version - 4.4.2
I tried to root NC1 directly using motochopper. Then I read and I am now trying to downgrade.
I have got ODIN 3.09 but it does not say support to I337. I have gone through Noob Helper
I have downloaded all zips from Downgrade
After reading the article of Modems; I got confused about my bootloader.
I also have gone through the thread but after that confusion, I did not proceed ahead.
Could anyone please help me?
How to identify boot-loader?
Which ODIN to use or do I need to use SAFETRAP (not sure if bootloader is MF3) ?

mayurd said:
I am new to flashing so sorry if I have asked some stupid questions.
I have SGH-I337 (ATT) and would like to root and then maybe install Cyanogenmod or any other custom ROM.
Device Details:
Baseband - NC1
Build No. - NC1
Android Version - 4.4.2
I tried to root NC1 directly using motochopper. Then I read and I am now trying to downgrade.
I have got ODIN 3.09 but it does not say support to I337. I have gone through Noob Helper
I have downloaded all zips from Downgrade
After reading the article of Modems; I got confused about my bootloader.
I also have gone through the thread but after that confusion, I did not proceed ahead.
Could anyone please help me?
How to identify boot-loader?
Which ODIN to use or do I need to use SAFETRAP (not sure if bootloader is MF3) ?
Click to expand...
Click to collapse
Dont worry about Odin saying the device is i9505 or so. The flash will work.
For samsung phones running full stock firmware, all the components have the same version. Since your build is NC1, your bootloader is also NC1.
You are in the right track. Follow the downgrade thread to partial downgrade to MK2. Then use saferoot to root. Then install safestrap v3.72. Then use the deadly venom kitkat magic tool to install any kitkat rom of your choice from this list (post 3).
You cannot install any AOSP based rom. So, no CM. Even google play edition roms dont work.
You can install AOSP themed roms (like BlackBox3.0)

jmjoyas said:
Dont worry about Odin saying the device is i9505 or so. The flash will work.
For samsung phones running full stock firmware, all the components have the same version. Since your build is NC1, your bootloader is also NC1.
You are in the right track. Follow the downgrade thread to partial downgrade to MK2. Then use saferoot to root. Then install safestrap v3.72. Then use the deadly venom kitkat magic tool to install any kitkat rom of your choice from this list (post 3).
You cannot install any AOSP based rom. So, no CM. Even google play edition roms dont work.
You can install AOSP themed roms (like BlackBox3.0)
Click to expand...
Click to collapse
Thank you for the response. I have downgraded to MK2 and have done the root.
I was wondering if you could tell me if it is possible to install Liquid Smooth ROM. I have seen the video and I have downloaded from here which says S4 unified. Also, there are some videos claiming CM on S4.
Could anyone please help on the same?

mayurd said:
Thank you for the response. I have downgraded to MK2 and have done the root.
I was wondering if you could tell me if it is possible to install Liquid Smooth ROM. I have seen the video and I have downloaded from here which says S4 unified. Also, there are some videos claiming CM on S4.
Could anyone please help on the same?
Click to expand...
Click to collapse
As already stated, no AOSP based roms will work (ROMs that are built by compiling AOSP code). Only TouchWiz based roms will work. If you need AOSP look and feel, you can install an AOSP themed rom.
CM/AOSP on ATT S4 is only possible if you have the MDB/MDL bootloader. Anything above that, it wont work.

jmjoyas said:
As already stated, no AOSP based roms will work (ROMs that are built by compiling AOSP code). Only TouchWiz based roms will work. If you need AOSP look and feel, you can install an AOSP themed rom.
CM/AOSP on ATT S4 is only possible if you have the MDB/MDL bootloader. Anything above that, it wont work.
Click to expand...
Click to collapse
Sorry for the repeated questions.
I tried to update through Safestrap with BlackBox. But I got stuck on the boot screen where it shows Samsung Logo. I might have done something wrong. I just clicked next on BlackBox 3.0. Could anyone please help me !
Edit:
When I tried to reboot into recovery mood (Vol Up + Home + Power) it says:
" Secure Fail Kernel
(Warning Sign) System Software not authorised by ATT has been found on your phone"

Don't select the reboot now option in the aroma installer at the end. Then, after the ROM flash is complete and before you reboot the phone, you need to put the phone back in download mode and flash the MLD ap/bl/cp files from the tool
Sent from my GT-I9505 using Tapatalk

jmjoyas said:
Don't select the reboot now option in the aroma installer at the end. Then, after the ROM flash is complete and before you reboot the phone, you need to put the phone back in download mode and flash the MLD ap/bl/cp files from the tool
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
I flashed the NB1 using ODIN but it still stays on Samsung Logo with custom logo. I am not able to navigate any where else from that screen.
Edit:
I was able to go into system recovery. Please let me know if I can fix the error somehow.
Thanks a lot !

Get into stock recovery and factory reset. I am not sure why you flashed NB1 though, as there is no direct root method for it yet
Sent from my GT-I9505 using Tapatalk

jmjoyas said:
Get into stock recovery and factory reset. I am not sure why you flashed NB1 though, as there is no direct root method for it yet
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
He probably was following the steps that were provided elsewhere here that had you go from nc1 to nb1 then back to the M (I can't remember which M) one.

jmjoyas said:
Get into stock recovery and factory reset. I am not sure why you flashed NB1 though, as there is no direct root method for it yet
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
I had rooted MK2 and the installed the custom ROM (Blackbox) and then was suppose to flash NB1.
So, if I just did a factory reset it would solve my error?
Thanks for the help!
Edit:
I tried doing the factory reset. It just wipes all the user data. And I am still stuck on the same screen with Samsung and the custom logo.

mayurd said:
I had rooted MK2 and the installed the custom ROM (Blackbox) and then was suppose to flash NB1.
So, if I just did a factory reset it would solve my error?
Thanks for the help!
Edit:
I tried doing the factory reset. It just wipes all the user data. And I am still stuck on the same screen with Samsung and the custom logo.
Click to expand...
Click to collapse
I have sent you a PM. Probably I can assist better on hangout.

[Q] Proper Rooting and SafeStrap Process NC4

Okay so I've been browsing through the forums and been reading up on this phone (even contacted Samsung about info on unlocking the bootloader, no go on that. Had to try though)
Basically I want to know what's the proper procedure for installing custom roms on an NC4 device 4.4.2
Things I know:
Bootloader is unlockable at the moment (hoping for some good news in the future)
Towelroot for rooting
Safestrap for recovery
(Both just download and install the apk)
Things I don't know:
Kernel?
Somebody said I had to flash the NC2 kernel via Odin?
Knox?
What is this? What trips it?
I did see the list of guides and I did read and watch all the necessary ones, but the date on those are from 2 years ago and I just need confirmation on if I'm going about this right.
Any help is appreciated. I thank you in advance for taking the time to read this.
Please excuse my lack of knowledge, this is my first Samsung device.
Also, what would happen if somebody were to flash the DE stock files via Odin to a Retail N3?

If you upgraded to NC4 or NK1, you're stuck until Samsung unlocks the bootloader or Verizon stops lying to their customers. There is no root available after upgrade at this moment in time.

Dravekx said:
If you upgraded to NC4 or NK1, you're stuck until Samsung unlocks the bootloader or Verizon stops lying to their customers. There is no root available after upgrade at this moment in time.
Click to expand...
Click to collapse
I didn't upgrade to NC4, it came like this.

rdar_93 said:
I didn't upgrade to NC4, it came like this.
Click to expand...
Click to collapse
That sucks. You can't do anything about it at the moment. I was forced to upgrade and lost root. Custom ROMs won't be available to you or me until someone finds a hole to unlock the bootloader. Welcome to our Verizon Note 3 rooting dilemma.

mirrin said:
You do not have a dev version so cm 11 or 12 is a far off dream you won't get. Your bootloader is locked there is no unlock.
You are in luck nc4 is root able using towel root then safe strap and the unified firmware. You will need odin and a pc for flashing a few things the NK1 modem towel root and the unified firmware. Pick a rom from the development thread i suggest jasmine 1.x or eclipse.
Click to expand...
Click to collapse
Copied from another post I had.
I don't know much about the device which is why I'm trying to find out.

Dravekx said:
That sucks. You can't do anything about it at the moment. I was forced to upgrade and lost root. Custom ROMs won't be available to you or me until someone finds a hole to unlock the bootloader. Welcome to our Verizon Note 3 rooting dilemma.
Click to expand...
Click to collapse
I actually just got root on my phone, I felt adventurous and installed towelroot and voila it rooted my phone.
I should state that I'm on 4.4.2, not 4.4.4.
Checked root status with Titanium Backup Pro, everything checked out a-okay.

rdar_93 said:
Okay so I've been browsing through the forums and been reading up on this phone (even contacted Samsung about info on unlocking the bootloader, no go on that. Had to try though)
Basically I want to know what's the proper procedure for installing custom roms on an NC4 device 4.4.2
Things I know:
Bootloader is unlockable at the moment (hoping for some good news in the future)
Towelroot for rooting
Safestrap for recovery
(Both just download and install the apk)
Things I don't know:
Kernel?
Somebody said I had to flash the NC2 kernel via Odin?
Knox?
What is this? What trips it?
I did see the list of guides and I did read and watch all the necessary ones, but the date on those are from 2 years ago and I just need confirmation on if I'm going about this right.
Any help is appreciated. I thank you in advance for taking the time to read this.
Please excuse my lack of knowledge, this is my first Samsung device.
Also, what would happen if somebody were to flash the DE stock files via Odin to a Retail N3?
Click to expand...
Click to collapse
Ahhhh... You're good to go then! Find a good custom ROM and follow the instructions. Whatever you do.. Don't upgrade!
rdar_93 said:
I actually just got root on my phone, I felt adventurous and installed towelroot and voila it rooted my phone.
I should state that I'm on 4.4.2, not 4.4.4.
Checked root status with Titanium Backup Pro, everything checked out a-okay.
Click to expand...
Click to collapse

Dravekx said:
Ahhhh... You're good to go then! Find a good custom ROM and follow the instructions. Whatever you do.. Don't upgrade!
Click to expand...
Click to collapse
Lol I still need clarification on the Kernel information that I don't know about.
What do I need to flash?
Do I flash it after I install a custom rom or before?

rdar_93 said:
Lol I still need clarification on the Kernel information that I don't know about.
What do I need to flash?
Do I flash it after I install a custom rom or before?
Click to expand...
Click to collapse
My opinion: If you're doing a custom kernel, make sure it works with whatever ROM you're flashing. I suggest sticking with the stock kernel* until you get the hang of things OR do a little research and learn a bit before you attempt anything. There's a lot of forums with details and help here. I've installed kernels before and after installing ROMs with little or zero problems, but I'm more of a dabbler than a professional.
I would suggest backing up your current setup in case you need to reflash. That's a definite.

Dravekx said:
My opinion: If you're doing a custom kernel, make sure it works with whatever ROM you're flashing. I suggest sticking with the stock kernel* until you get the hang of things OR do a little research and learn a bit before you attempt anything. There's a lot of forums with details and help here. I've installed kernels before and after installing ROMs with little or zero problems, but I'm more of a dabbler than a professional.
I would suggest backing up your current setup in case you need to reflash. That's a definite.
Click to expand...
Click to collapse
Lol that doesn't really answer the question. I hope somebody sees it and clears it up for me

rdar_93 said:
Lol that doesn't really answer the question. I hope somebody sees it and clears it up for me
Click to expand...
Click to collapse
The kernel can't be changed...although it can be "tuned" if you have root.
http://forum.xda-developers.com/showthread.php?p=58813428
Sent from my Note 3 via Tapatalk

Still hoping somebody helps me out and posts a short but precise guide to install a custom rom on 4.4.2 NC4
I don't want to end up bricking my device on the first try. I've been there already and it sucks lol

rdar_93 said:
Still hoping somebody helps me out and posts a short but precise guide to install a custom rom on 4.4.2 NC4
I don't want to end up bricking my device on the first try. I've been there already and it sucks lol
Click to expand...
Click to collapse
It really depends on the ROM, there is no set guide for all ROMs.
Did you install busybox? I like using busybox on rails. Just download the app and click install.
Download the safestrap apk (3.75 B04) and install that, open it and install recovery.
I'm currently running Clean ROM. I am on NC4. I downloaded the rom, and moved it to my SD card. I rebooted to safestrap, wiped data, cache and dalvik then installed the ROM to the stock slot. Then, following the instructions for Clean ROM, I rebooted to download mode from recovery and flashed the NC2 Kernel with odin.
The main thing is to read the installation instructions for the particular ROM you want to flash.
Don't forget to use Titanium backup to freeze SDM app (I think that's what its called) so your phone will stop trying to update.
---------- Post added at 05:29 PM ---------- Previous post was at 05:23 PM ----------
rdar_93 said:
Still hoping somebody helps me out and posts a short but precise guide to install a custom rom on 4.4.2 NC4
I don't want to end up bricking my device on the first try. I've been there already and it sucks lol
Click to expand...
Click to collapse
If you're at all proficient with Odin it is really REALLY hard to brick these phones.

BladeRunner said:
It really depends on the ROM, there is no set guide for all ROMs.
Did you install busybox? I like using busybox on rails. Just download the app and click install.
Download the safestrap apk (3.75 B04) and install that, open it and install recovery.
I'm currently running Clean ROM. I am on NC4. I downloaded the rom, and moved it to my SD card. I rebooted to safestrap, wiped data, cache and dalvik then installed the ROM to the stock slot. Then, following the instructions for Clean ROM, I rebooted to download mode from recovery and flashed the NC2 Kernel with odin.
The main thing is to read the installation instructions for the particular ROM you want to flash.
Don't forget to use Titanium backup to freeze SDM app (I think that's what its called) so your phone will stop trying to update.
---------- Post added at 05:29 PM ---------- Previous post was at 05:23 PM ----------
If you're at all proficient with Odin it is really REALLY hard to brick these phones.
Click to expand...
Click to collapse
Thanks man, I was supposed to update this thread saying that I got through with the proper procedure for installing Jasmine Rom
Although I was running Eclipse before, and I wanted to try going back to stock but it just got stuck on the Verizon splash screen
I'm thinking it's because I had the NC2 kernel active when I should have gone back to the NC4 kernel
I looked for a NC4 kernel to flash but I only saw the modems and tar files, so not knowing if those were the same as kernels I decided to just try Jasmine. So far, I like it.
I have crazy battery drain though. I think it's because I'm running it in Slot 1

just picked up a verizon note 3 android 4.4.2 NC4
one of the very first posts above says you cant do anything on NC4 and then another post says NC4 is ok but just not android 4.4.4
NC4 is the latest update as of this writing isnt it?
what can actually be done with this vzw note 3 on android 4.4.2 NC4?
non dev edition of course
what about knox?
if rooting can be done with this phone on this OS is there any safe way not to trip knox?

en11gma said:
just picked up a verizon note 3 android 4.4.2 NC4
one of the very first posts above says you cant do anything on NC4 and then another post says NC4 is ok but just not android 4.4.4
NC4 is the latest update as of this writing isnt it?
what can actually be done with this vzw note 3 on android 4.4.2 NC4?
non dev edition of course
what about knox?
if rooting can be done with this phone on this OS is there any safe way not to trip knox?
Click to expand...
Click to collapse
I'd be happy to answer your questions
If you have an NC4 device that's running 4.4.2, you are able to gain root access and install safestrap recovery on your device. However, if the android version is 4.4.4, you cannot root or install safestrap.
NC4 is just our last build number, but there are two versions I think, the 4.4.2 and the 4.4.4. In the 4.4.4, they blacklisted every single compatible kernel that could work on the device. They forgot to do it in the 4.4.2 version, that's why we're able to gain root.
On our NC4 4.4.2 Verizon Note 3, we can root, install safestrap recovery and install a very limited amount of roms from the non developer edition selection on the XDA forums.
Rooting via towelroot, to my knowledge, does not trip knox. However, installing safestrap recovery does. But if you're worried about your warranty being voided, I wouldn't panic too much because with our bootloader being locked, it is very easy to flash the original Stock Verizon files through Odin to go straight back to factory settings so it looks like if you just pulled it out the box. The knox code would be reset and you would have a device that looked like if it has never been rooted or modified.

rdar_93 said:
I'd be happy to answer your questions
If you have an NC4 device that's running 4.4.2, you are able to gain root access and install safestrap recovery on your device. However, if the android version is 4.4.4, you cannot root or install safestrap.
NC4 is just our last build number, but there are two versions I think, the 4.4.2 and the 4.4.4. In the 4.4.4, they blacklisted every single compatible kernel that could work on the device. They forgot to do it in the 4.4.2 version, that's why we're able to gain root.
On our NC4 4.4.2 Verizon Note 3, we can root, install safestrap recovery and install a very limited amount of roms from the non developer edition selection on the XDA forums.
Rooting via towelroot, to my knowledge, does not trip knox. However, installing safestrap recovery does. But if you're worried about your warranty being voided, I wouldn't panic too much because with our bootloader being locked, it is very easy to flash the original Stock Verizon files through Odin to go straight back to factory settings so it looks like if you just pulled it out the box. The knox code would be reset and you would have a device that looked like if it has never been rooted or modified.
Click to expand...
Click to collapse
Safestrap does not trip knox.

mjh68 said:
Safestrap does not trip knox.
Click to expand...
Click to collapse
Thanks. I must have tripped mine somehow cause my device says "custom" when booting.
I'm guessing it might be Xposed but I'm not too sure.

rdar_93 said:
Thanks. I must have tripped mine somehow cause my device says "custom" when booting.
I'm guessing it might be Xposed but I'm not too sure.
Click to expand...
Click to collapse
It will say custom, but that isn't tripping knox. Custom can be removed with the triangle away app. Custom just gets flagged like you were saying by changing the recovery , but it doesn't trip the knox counter.

mjh68 said:
It will say custom, but that isn't tripping knox. Custom can be removed with the triangle away app. Custom just gets flagged like you were saying by changing the recovery , but it doesn't trip the knox counter.
Click to expand...
Click to collapse
Then I must be confused about what knox really is.
What is "Knox" then?

Galaxy S4 4.4.2- Available Root Methods?

Need root help
I have a new unlock ATT Galaxy S 4 And would like to root it. ( don't care about warranty) I want to get rid of the "caned apps". Stock rom is fine just need an easy method.
Samsung SGH-I337ZKAATT, KitKat 4.4.2, Kernel 3.4.0-505595, build number KOT49H.I337UCUFNB1
I hope this is enough information​

on NB1, you should be able to root with TowelRoot. See Odin to Stock, Updating, Rooting, and Safestrap Guide post #2, section 2 HOW TO GET TO ANY KITKAT 4.4.2 (NB1, NC1, NI1) OR 4.4.4 (NJ4, NJ5) BASE, Step 3 Root and Install Safestrap. Everything you need is there. Essentially, flash NC1 kernel, root, flash NB1 kernel. Follow the directions.

creepyncrawly said:
on NB1, you should be able to root with TowelRoot. See Odin to Stock, Updating, Rooting, and Safestrap Guide post #2, section 2 HOW TO GET TO ANY KITKAT 4.4.2 (NB1, NC1, NI1) OR 4.4.4 (NJ4, NJ5) BASE, Step 3 Root and Install Safestrap. Everything you need is there. Essentially, flash NC1 kernel, root, flash NB1 kernel. Follow the directions.
Click to expand...
Click to collapse
If I use TowerRoot Do I still have to use Odin?

Timeclock said:
If I use TowerRoot Do I still have to use Odin?
Click to expand...
Click to collapse
Yes. You use Odin to flash the NC1 kernel in order to root with TowelRoot, and then you use Odin to flash back the NB1 kernel so your NB1 system will boot. Please read the guide. The instructions are all there.

I found my easy method and rooted my Samsung SGH-I337ZKAATT, KitKat 4.4.2, Kernel 3.4.0-505595, build number KOT49H.I337UCUFNB1 phone. You can search web for " Root I337UCUFNB1 AT&T Galaxy S4 4.4.2 KitKat Firmware Without Tripping KNOX counter". Afterwards I installed Titanium Backup just to see if it would work and it did. ( I got SuperSU .apk from it's website not the play store and ran it from my SD card.)

Change to custom Rom - Help needed

Hi Friends
I have Samsung -SGH-I337 (AT&T) i already rooted it by KingRoot.
Baseband: I337UGUGOC3
KNOX: 2.3
I need to install Cynogenmod or similar rom, bcoz stock samsung rom drains battery like anything and have lot of Bloatware from AT&T
So friend let me know how to install recovery like Clockworks and then custom rom suitable got I337

vazeer said:
Hi Friends
I have Samsung -SGH-I337 (AT&T) i already rooted it by KingRoot.
Baseband: I337UGUGOC3
KNOX: 2.3
I need to install Cynogenmod or similar rom, bcoz stock samsung rom drains battery like anything and have lot of Bloatware from AT&T
So friend let me know how to install recovery like Clockworks and then custom rom suitable got I337
Click to expand...
Click to collapse
Your baseband is OC3 so you have OC3 modem. What is your bootloader?
If you bootloader is newer than MDB or MDL you can not install the custom recovery like CWM or TWRP. You are limited to Safestrap or Flashfire for flashing the custom rom.

sway8966 said:
Your baseband is OC3 so you have OC3 modem. What is your bootloader?
If you bootloader is newer than MDB or MDL you can not install the custom recovery like CWM or TWRP. You are limited to Safestrap or Flashfire for flashing the custom rom.
Click to expand...
Click to collapse
Hi,
My Bootloader is "I337UGUGOC3" is same as my baseband.
So what im suppose to do now ?

vazeer said:
Hi,
My Bootloader is "I337UGUGOC3" is same as my baseband.
So what im suppose to do now ?
Click to expand...
Click to collapse
You have a locked bootloader so you option to install the custom rom is limited to using either safestrap or flashfire.
This guide explain how to install custom using safestrap.
This guide explain updating, rooting and using safestrap. It is also useful if you screwed up and bricked your phone while flashing or tweaking.
Flashfire is newer thing and there is no separate guide written for how to use it but you can find the flashfire instructions in the custom rom that is written as flashfire friendly.

sway8966 said:
You have a locked bootloader so you option to install the custom rom is limited to using either safestrap or flashfire.
This guide explain how to install custom using safestrap.
This guide explain updating, rooting and using safestrap. It is also useful if you screwed up and bricked your phone while flashing or tweaking.
Flashfire is newer thing and there is no separate guide written for how to use it but you can find the flashfire instructions in the custom rom that is written as flashfire friendly.
Click to expand...
Click to collapse
I already went on that post but its very confusing to me, as i have OC3 bootloader, rooted with Kingroot what next, should i use Odin if yes that in put AP slot, and someplace it says OC3 to NJ4 what is that.
Can u plz tell me how to get safestrap installed (as i have rooted already) and then latest rom (that has working mobile data tethering )

vazeer said:
I already went on that post but its very confusing to me, as i have OC3 bootloader, rooted with Kingroot what next, should i use Odin if yes that in put AP slot, and someplace it says OC3 to NJ4 what is that.
Can u plz tell me how to get safestrap installed (as i have rooted already) and then latest rom (that has working mobile data tethering )
Click to expand...
Click to collapse
My first reference explains all the steps starting from the Kitkat NB1.
Since you'd already have OC3 and rooted you need to follow the step #4 Install your CUSTOM Lollipop ROM . step 4.1 explains how to install safestrap. 4.2 explains how to invoke safestrap and 4.3 explains how to install the custom rom.
I did not see OC3 to NJ4 that you were referring to though.
This thread is for installing S6 port using either safestrap or flashfire. I am just showing you as an example how to install the custom rom.

vazeer said:
Hi Friends
I have Samsung -SGH-I337 (AT&T) i already rooted it by KingRoot.
Baseband: I337UGUGOC3
KNOX: 2.3
I need to install Cynogenmod or similar rom, bcoz stock samsung rom drains battery like anything and have lot of Bloatware from AT&T
So friend let me know how to install recovery like Clockworks and then custom rom suitable got I337
Click to expand...
Click to collapse
I recommend you to do all process from NB1 to OC4/OK2 keep root (Avaliable on the INDEX) bcuz I was lazy and used kingroot to root OC4 and when I finally was into safestrap it doesn't flashed any ROM and was just a waste of time.

David_RD said:
I recommend you to do all process from NB1 to OC4/OK2 keep root (Avaliable on the INDEX) bcuz I was lazy and used kingroot to root OC4 and when I finally was into safestrap it doesn't flashed any ROM and was just a waste of time.
Click to expand...
Click to collapse
Thanks a lot guys, still my confusion is what to put in AP slot in Odin as my bootloader is OC3 and after that how to install safestrap
As David u have OC4 can u please guide me through ?

vazeer said:
Thanks a lot guys, still my confusion is what to put in AP slot in Odin as my bootloader is OC3 and after that how to install safestrap
As David u have OC4 can u please guide me through ?
Click to expand...
Click to collapse
I'm not the most indicated to show you the way because I haven't tried the keep root method yet, S4 it's my personal phone, was finishing semester and needed to be contactable.
I'm gonna try it right now and if I have success I will let u know in a couple hours?
I'm now on Albe95 LolliROM v8 ? and I'm pretty noob on this. I'll tell you step by step tomorrow cause now I'm tired ??

So did everything is working perfectly, what steps u went through ?

vazeer said:
So did everything is working perfectly, what steps u went through ?
Click to expand...
Click to collapse
Proceed at your own risk. I'm not responsible for any damage caused to your device
First we must put all the archives we will need on the SD card (Stock rooted OC4, the Custom ROM we want, OC4 modules, OC4 kernel and all we gonna need)
Make sure to read this complete, understand it and then proceed
1. I used Odin to flash back to NB1 (the rootable one)
2. Rooted with TowelRoot and installed SuperSU and FlashFire directly from PlayStore (worked for me).
3. Opened Flashfire, granted root permissions and did the Muniz_ri Keep Root Method (4.4.x to OK2) but instead of using OK2 replaced all OK2's with OC4 files because I couldn't find the OK2 modules and will be needed to flash custom ROM.
4. At this point we have OC4 rooted so we just install BusyBox (install the 'things'), then install Safestrap and inside the app install the recovery and at last install the NC1 app flasher.
5. We will automatically reboot into Safestrap recovery and there we just have to wipe (all except SD card) then we proceed to install the ROM (if the ROM has aroma installer at the end we don't reboot into system we have to go back to recovery), after modules and at last we flash (install) the Kernel (we re using OC4 base so modules and Kernel must be OC4 too).
6. From here we just have to wait, and the Safestrap robot will appear like 4 times, we just press continue and deodexed custom ROMs will take about 15-20 minutes to do the first boot.
All archives can be found here on the different threads== > http://forum.xda-developers.com/showthread.php?t=2616221 <== Remember to thank all those posts and their respective devs :good: