Need some information regarding downgrading s4 - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hi,
I'm using AT&T S4 running 4.4.4 have nj4 bootloader and currently rooted. My Question is if I downgrade to stock i.e. MDB will I be able to install Custom ROM like Cynagenmod ? Please reply
I'm going back to stock using this Guide
Thanks

I assume you want to downgrade from a locked bootloader to an unlocked bootloader. Based on everything I have read, this cannot be done.
http://forum.xda-developers.com/showthread.php?t=2257620

taqi110 said:
Hi,
I'm using AT&T S4 running 4.4.4 have nj4 bootloader and currently rooted. My Question is if I downgrade to stock i.e. MDB will I be able to install Custom ROM like Cynagenmod ? Please reply
I'm going back to stock using this Guide
Thanks
Click to expand...
Click to collapse
If you could downgrade to stock unlocked bootloader, you could be able to install Custom rom like cyanogenmod (CM). So far, we do not have solution to downgrade to unlocked bootloader from the locked bootloader. The lowest you can go without tripping the knox counter is NB1.
If you want to install the CM, there is a safestrap version availible on xda. You can find it here.

sway8966 said:
If you could downgrade to stock unlocked bootloader, you could be able to install Custom rom like cyanogenmod (CM). So far, we do not have solution to downgrade to unlocked bootloader from the locked bootloader. The lowest you can go without tripping the knox counter is NB1.
If you want to install the CM, there is a safestrap version availible on xda. You can find it here.
Click to expand...
Click to collapse
Thanks for the link will check it. I have another problem with nj4 kernel
I wanted to change android mode from enforcing to permissive so I downloaded an app called se mod changer but the problem is that when I select permissive it just revert back to enforcing without any error. I also tried to change mod using terminal but that also revert back to enforcing.
I tried this app on moto x and s3 and it worked fine.
If I downgrade to nb1 will I be ablw.to change mod ?
Thanks

taqi110 said:
Thanks for the link will check it. I have another problem with nj4 kernel
I wanted to change android mode from enforcing to permissive so I downloaded an app called se mod changer but the problem is that when I select permissive it just revert back to enforcing without any error. I also tried to change mod using terminal but that also revert back to enforcing.
I tried this app on moto x and s3 and it worked fine.
If I downgrade to nb1 will I be ablw.to change mod ?
Thanks
Click to expand...
Click to collapse
What I understand about SELinux Mode changer is it depends on the kernel that you are using. The kernel has to be complied such a way that SELinux mode can be changeable.. When I was on kit-kat, I was using GE roms. The cooker included a safestrap flashable modified AT&T kernel so we could change the SElinux mode and to be able to use the xPose module.

Related

[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] SELinux help? (kitkat 4.4.4)

Hey everyone, I'm fairly new here but I have a Samsung S4 SGH-I337 running kitkat 4.4.4 from AT&T.
I recently rooted my s4 with towelroot and everything went okay, but now I'm trying to find a way to turn SELinux from enforcing to permissive. I've tried the SElinux mode changer and wanam xposed but both of them weren't able to switch SElinux to permissive. Most of the threads I read said I should find a new kernel with the SELinux set to permissive but all the kernels I've found so far are for kitkat 4.4.2 or jellybean 4.3
Also liked I said, I'm pretty new to this thing and I wanted to know would the kernels for the t-mobile sprint and global s4 work on my AT&T model? I looked them up and it does seem they have different model numbers so I don't want to try flashing it just to end up bricking my phone.
I'm trying to get my phone to mirror with my AppRadio3 through chromecast. I've gotten it to mirror and everything works except for touch, which I'm thinking is due to SElinux being set to enforcing. If anybody could help I would greatly appreciate it!
SSIV said:
Hey everyone, I'm fairly new here but I have a Samsung S4 SGH-I337 running kitkat 4.4.4 from AT&T.
I recently rooted my s4 with towelroot and everything went okay, but now I'm trying to find a way to turn SELinux from enforcing to permissive. I've tried the SElinux mode changer and wanam xposed but both of them weren't able to switch SElinux to permissive. Most of the threads I read said I should find a new kernel with the SELinux set to permissive but all the kernels I've found so far are for kitkat 4.4.2 or jellybean 4.3
Also liked I said, I'm pretty new to this thing and I wanted to know would the kernels for the t-mobile sprint and global s4 work on my AT&T model? I looked them up and it does seem they have different model numbers so I don't want to try flashing it just to end up bricking my phone.
I'm trying to get my phone to mirror with my AppRadio3 through chromecast. I've gotten it to mirror and everything works except for touch, which I'm thinking is due to SElinux being set to enforcing. If anybody could help I would greatly appreciate it!
Click to expand...
Click to collapse
The 4.4.4 nj4 kernel is not able to be rooted and also does not work with selinux changers.
Murasakiii said:
The 4.4.4 nj4 kernel is not able to be rooted and also does not work with selinux changers.
Click to expand...
Click to collapse
Ah I didn't know the kernel couldn't be rooted. I followed the instructions from droidviews to root my phone but if I can't do anything with the kernel then it looks like I'm out of luck
Is there any way to downgrade my s4 from kitkat 4.4.4 to something else like kitkat 4.3 or jellybean 4.2? I've seen some tutorials on how to downgrade from 4.4.2 to jellybean, but I haven't been able to find a tutorial on how to downgrade from 4.4.4
SSIV said:
Ah I didn't know the kernel couldn't be rooted. I followed the instructions from droidviews to root my phone but if I can't do anything with the kernel then it looks like I'm out of luck
Is there any way to downgrade my s4 from kitkat 4.4.4 to something else like kitkat 4.3 or jellybean 4.2? I've seen some tutorials on how to downgrade from 4.4.2 to jellybean, but I haven't been able to find a tutorial on how to downgrade from 4.4.4
Click to expand...
Click to collapse
Yes check the general thread regarding Odin to stock. I downgraded to nb1 but some people care about tethering. Not sure which one allows tethering.
Murasakiii said:
Yes check the general thread regarding Odin to stock. I downgraded to nb1 but some people care about tethering. Not sure which one allows tethering.
Click to expand...
Click to collapse
Oh okay, I'll go read up on that before trying to downgrade my phone. I used odin in one of the steps to root my phone but its probably a whole different process to downgrade it. Also thanks for your fast replies, you've been really helpful I really appreciate it!

Reactivation Lock not working after root

hello guys,
I rooted my Note 4 SM-N910C yesterday, and everything was fine until now. I saw that reactivation Lock(can't flash via odin when it's on) was off, so I tried to turn it on, but it was not working. I tried everything, but without sucess. I tried to flash a stock firmware from sammobile, and after that, it was working, so I rooted again and It's not working anymore.
So, someone knows a way to root and get it working? Did you have this problem too?
help me :/
jgfernog said:
hello guys,
I rooted my Note 4 SM-N910C yesterday, and everything was fine until now. I saw that reactivation Lock(can't flash via odin when it's on) was off, so I tried to turn it on, but it was not working. I tried everything, but without sucess. I tried to flash a stock firmware from sammobile, and after that, it was working, so I rooted again and It's not working anymore.
So, someone knows a way to root and get it working? Did you have this problem too?
help me :/
Click to expand...
Click to collapse
Same here , when Im rooting doesnt show anything , and the smartphone turns on without showing the red android that suppose to show
jgfernog said:
hello guys,
I rooted my Note 4 SM-N910C yesterday, and everything was fine until now. I saw that reactivation Lock(can't flash via odin when it's on) was off, so I tried to turn it on, but it was not working. I tried everything, but without sucess. I tried to flash a stock firmware from sammobile, and after that, it was working, so I rooted again and It's not working anymore.
So, someone knows a way to root and get it working? Did you have this problem too?
help me :/
Click to expand...
Click to collapse
Same here, maybe installing xposed and putting a request for a module? although s health and private mode don't work on my note 4 either (xposed running)
UnboundDemon said:
Same here, maybe installing xposed and putting a request for a module? although s health and private mode don't work on my note 4 either (xposed running)
Click to expand...
Click to collapse
this is a kernel related, I think. Everybody says that it still working on Snapdragon's Note 4, but here at Exynos, you can't activate it.
jgfernog said:
this is a kernel related, I think. Everybody says that it still working on Snapdragon's Note 4, but here at Exynos, you can't activate it.
Click to expand...
Click to collapse
I dont think it is that, I have a friend with the same model that us, and the activation works on his phone :s
So, guys, have anyone solved this problem?
I also have rooted Note 4 and neither "Remote controls" nor "reactivation lock" can I activate...
reactivetion lock not working
I also encountered a similar case but only used through l launch , give me one new idea when it dies in it :good:
Guys, has anybody solved this problem?
Here I am, rooted GS5 with MM fw, before root it worked, as it did with lollipop and kitkat.
After root it doesn't turn on anymore, I reflashed stock recovery too. I guess it's related to knox 0x1, with rooted knox 0x0 kitkat and lollipop I could enable it.
Or maybe it's kernel related, so systemless root with stock kernel could be the solution
Good news, after reflashing a stock firmware I could enable RL back. So it's not knox related but root related. Tomorrow I'll try with systemless root
Joker87 said:
Good news, after reflashing a stock firmware I could enable RL back. So it's not knox related but root related. Tomorrow I'll try with systemless root
Click to expand...
Click to collapse
I think what is needed it to copy your stock recovery from an official touchwiz rom and flash it. You will need a tar.gz converter to flash it via odin. Sometime ago I tried it where your root remains but you have a stock recovery. I believe all those Samsung security features like Reactivation Lock relies on a stock recovery and not a custom like ( TWRP/CWM)
chaundb said:
I think what is needed it to copy your stock recovery from an official touchwiz rom and flash it. You will need a tar.gz converter to flash it via odin. Sometime ago I tried it where your root remains but you have a stock recovery. I believe all those Samsung security features like Reactivation Lock relies on a stock recovery and not a custom like ( TWRP/CWM)
Click to expand...
Click to collapse
I reflashed stock recovery but still no luck. It's root related, or better kernel related, as someone posted above. I'm on systemless root and it shows "warranty bit kernel" message at boot. With rooted lollipop and stock kernel/recovery it worked
Joker87 said:
I reflashed stock recovery but still no luck. It's root related, or better kernel related, as someone posted above. I'm on systemless root and it shows "warranty bit kernel" message at boot. With rooted lollipop and stock kernel/recovery it worked
Click to expand...
Click to collapse
Really, so how can I do the same on Marshmallow. Where can I obtain a systemless root method for my SM-N910H Note 4 ???
chaundb said:
Really, so how can I do the same on Marshmallow. Where can I obtain a systemless root method for my SM-N910H Note 4 ???
Click to expand...
Click to collapse
Just flash supersu beta via twrp
You must have stock boot.img, I suggest reflashing the entire stock firmware if you did some modifications
Joker87 said:
Just flash supersu beta via twrp
You must have stock boot.img, I suggest reflashing the entire stock firmware if you did some modifications
Click to expand...
Click to collapse
Look...i am currently rooted. I have twrp 3.0 and i flashed super su beta. I dont have any modified or special kernels of that sort...just root. So are you telling me all i need to do is flash the original touchwiz boot.img from the marshmallow rom file ( i will have to go convert it to a Tar file) ???.... And that will give me the ability to stay rooted and be able to use reactivation lock again ???
chaundb said:
Look...i am currently rooted. I have twrp 3.0 and i flashed super su beta. I dont have any modified or special kernels of that sort...just root. So are you telling me all i need to do is flash the original touchwiz boot.img from the marshmallow rom file ( i will have to go convert it to a Tar file) ???.... And that will give me the ability to stay rooted and be able to use reactivation lock again ???
Click to expand...
Click to collapse
Nope... rl doesn't work with any root method
Joker87 said:
Nope... rl doesn't work with any root method
Click to expand...
Click to collapse
Ok..thats what i thought.......its best we stay without it then. Or go back completely stock and unrooted to use the feature.
Hello, seen there is no new news about this.. Has anyone got around this?
Can we root and activate the reactivation lock now?
Thanks

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:

Galaxy S4 [i337m] ROM update help

Hi guys!
My dad has been using the above mentioned device for the past 5.5 years. The device is running a stock rooted 4.2.2 MDJ build. His bank is about to stop the support for the 4.2.2 version so we need to update the OS. The minimum required OS is now KitKat but I would like a more moderate ROM. Is it possible to have for e.g. an Oreo based ROM without Knox? In other words, do some ROMs include a Knox bootloader (to enable them to run)?
Thanks for the help!
Only Samsung ROMs would contain Knox.
The apps should be fine with a stock 5.01 ROM if you want to stick with stock.
If you want to run a custom Oreo ROM, I suggest flashing the latest bootloader and modem before installing Oreo.
The sgh-i337m forum is here: https://forum.xda-developers.com/galaxy-s4-att
audit13 said:
Only Samsung ROMs would contain Knox.
The apps should be fine with a stock 5.01 ROM if you want to stick with stock.
If you want to run a custom Oreo ROM, I suggest flashing the latest bootloader and modem before installing Oreo.
The sgh-i337m forum is here: https://forum.xda-developers.com/galaxy-s4-att
Click to expand...
Click to collapse
Thanks for the reply!
As I said I would like to evade to flash the Knox bootloader. I know Samsung made it impossible to use their OS without Knox so I'm guessing my only option is to use custom ROMs. Are there any ROMs that still utilise the old bootloader?
You can't flash any bootloader other than stock.
Knox will not interfere with flashing custom ROMs.
Some banking apps will not work with a rooted ROM so you may have to use another app to hide root.
audit13 said:
You can't flash any bootloader other than stock.
Knox will not interfere with flashing custom ROMs.
Some banking apps will not work with a rooted ROM so you may have to use another app to hide root.
Click to expand...
Click to collapse
Root is in place just to disable OTA and by the looks of it the banking app doesn't care.
Regarding Knox, I actually think of it as a security downgrade because the NSA played a part in its development and they are known to spy on people. I feel safer when it's not installed LMAO
Is the phone an sgh-i337m or sgh-i337?
The sgh-i337 was made for at&t.
audit13 said:
Is the phone an sgh-i337m or sgh-i337?
The sgh-i337 was made for at&t.
Click to expand...
Click to collapse
It's the SGH-I337M. Canadian model. CSC is TLS (Telus)
Okay, just wanted to make sure it wasn't the att model because the 4.3 or newer bootloader is locked on the non-m version.
Anybody have any suggestions for a ROM? It doesn't necessarily need to be the latest version of Android. It just needs to be compatible with the old bootloader
If you're still on MDJ stay on MDJ, don't update your bootloader, only the modem. 4.3 don't have KNOX, just don't update from OTA.
AoEKiller said:
If you're still on MDJ stay on MDJ, don't update your bootloader, only the modem. 4.3 don't have KNOX, just don't update from OTA.
Click to expand...
Click to collapse
Don't worry. I won't I am just looking for an at least 4.4 ROM without Knox
AFAIK Knox is on the 4.3 build
Here are a few pics if some of you still don't believe me
Anyone?
Heard also Chrome is losing support for Android 4.2.2

Categories

Resources