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Hello, I've installed tons of custom roms on quite a few different devices before, but this is the first one I've owned with a bootloader that can't be unlocked and I'm still kind of confused as to how all of these workarounds function and what ROMs they're compatible with. I've unlocked the phone and am using it on T-Mobile. It's currently on the MLD KitKat leaked version.
This is possibly wrong, but my understanding is that you are currently unable to install custom ROMs like CM and Omni on this device. So would it be possible to at least flash the stock T-Mobile ROM instead of AT&T? Right now, I have no access to hotspot, which is included in my plan, and I'd also like to use WiFi calling if possible. Has this been done before and is it possible on my firmware?
Thanks in advance for any help; it's greatly appreciated.
halomademeapc said:
Hello, I've installed tons of custom roms on quite a few different devices before, but this is the first one I've owned with a bootloader that can't be unlocked and I'm still kind of confused as to how all of these workarounds function and what ROMs they're compatible with. I've unlocked the phone and am using it on T-Mobile. It's currently on the MLD KitKat leaked version.
This is possibly wrong, but my understanding is that you are currently unable to install custom ROMs like CM and Omni on this device. So would it be possible to at least flash the stock T-Mobile ROM instead of AT&T? Right now, I have no access to hotspot, which is included in my plan, and I'd also like to use WiFi calling if possible. Has this been done before and is it possible on my firmware?
Thanks in advance for any help; it's greatly appreciated.
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You can not flash their stock firmware. You can, however, use Safestrap to flash a ROM from their section, which as long as it is based from the stock firmware will have those features.
I have flashed HYPERDRIVE ROM with T-Mobile compatibility pack and works fine ! Even WiFi calling works!
Sent from my SGH-M919 using XDA Premium 4 mobile app
Thanks, guys. I just got back from a trip and I'll be attempting this now.
Are there any AOSP-type ROMs that will work with this?
DeadlySin9 said:
You can not flash their stock firmware. You can, however, use Safestrap to flash a ROM from their section, which as long as it is based from the stock firmware will have those features.
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Also, if you havent done so, you might want to enable AWS for further compatibility. You will need to use the stock AT&T TW ROM in order to do so.
DeadlySin9 said:
You can not flash their stock firmware. You can, however, use Safestrap to flash a ROM from their section, which as long as it is based from the stock firmware will have those features.
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Do I need any sort of Loki kernel or can I just pick one and go with it? I'm looking at this rom right now. http://forum.xda-developers.com/showthread.php?t=2682842
halomademeapc said:
Do I need any sort of Loki kernel or can I just pick one and go with it? I'm looking at this rom right now. http://forum.xda-developers.com/showthread.php?t=2682842
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Since you're using Safestrap, you can't flash a kernel anyways due to the locked bootloader. You should be able to go ahead and flash that.
Hey guys, everything I've read has said once you update beyond 4.3 you can never go back down because of knox. I also saw someone mention you actually can downgrade to a custom ROM based on a previous build just not to stock. Can anyone clarify this for me? I'm not worried about breaking my warranty since it's long since expired. I'm on the rooted 5.01 Goldeneye ROM and want to go back to a 4.2 ROM. strictly for tethering purposes
What is the model # for the s4?
It's the AT&T sgh-i337
With a locked bootloader, the phone is limited to customs roms based off a stock Samsung rom. Aosp and cm will not install or run.
audit13 said:
With a locked bootloader, the phone is limited to customs roms based off a stock Samsung rom. Aosp and cm will not install or run.
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Thanks for the reply! So if I stick to TouchWiz based custom roms I can downgrade without bricking my phone?
Yes, just don't touch the bootloader or modem.
audit13 said:
Yes, just don't touch the bootloader or modem.
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Ok thanks. Can you suggest a good 4.2 ROM? Also, since I'm already rooted with safestrap, do I just wipe and flash the new ROM or do I need to install a different version of safestrap and kernal etc? I'm have trouble finding any instructions on how to downgrade. I appreciate all your help!
I can't recommend any 4.2 roms as I don't have the phone. Also, I don't think such an old rom will work on an lp modem and bootloader.
audit13 said:
I can't recommend any 4.2 roms as I don't have the phone. Also, I don't think such an old rom will work on an lp modem and bootloader.
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Ok so based on your statement "I don't think such an old rom will work on a lp modem and bootloader," does that mean you actually don't think I can downgrade?
You can try but I don't think you will have a functioning phone in that the imei will not be properly displayed which means the phone wouldn't be able to connect to the carrier.
audit13 said:
You can try but I don't think you will have a functioning phone in that the imei will not be properly displayed which means the phone wouldn't be able to connect to the carrier.
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I appreciate your help!
If any developer has the time, please consider looking into making a cm rom, cause we've managed to get echoe rom working on the Sprint S7.
ItsYaminNoodlez said:
If any developer has the time, please consider looking into making a cm rom, cause we've managed to get echoe rom working on the Sprint S7.
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Idk if it can be done on locked bootloaders that are tw launcher based because Cm is aosp based
vegoja said:
Idk if it can be done on locked bootloaders that are tw launcher based because Cm is aosp based
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True didn't think of that. Hopefully we find a way to bypass that or unlock the bootloader.
The only thing that stops us from having a Cyanogen rom on our phones is our locked bootloaders. It doesn't matter that we have Twiz based OS on our phones cuz when you flash a rom from a custom recovery, it basically writes a whole new OS onto the phone. So whatever OS your running prior to the flash gets overwritten with the new OS.
So the only way we can flash a custom OS is if our bootloaders get unlocked, cuz once that happens we can flash a custom recovery, and from there we can flash whatever rom we want, as long as its made for our phones. First we got to have a working root method, then we have to have our bootloaders unlocked so we can flash a custom recovery, then we can flash away. We have a root method now, so it's only a matter of time until our bootloaders are unlocked. IMO
Sent from my SM-G930P using Tapatalk
sniperkill said:
The only thing that stops us from having a Cyanogen rom on our phones is our locked bootloaders. It doesn't matter that we have Twiz based OS on our phones cuz when you flash a rom from a custom recovery, it basically writes a whole new OS onto the phone. So whatever OS your running prior to the flash gets overwritten with the new OS.
So the only way we can flash a custom OS is if our bootloaders get unlocked, cuz once that happens we can flash a custom recovery, and from there we can flash whatever rom we want, as long as its made for our phones. First we got to have a working root method, then we have to have our bootloaders unlocked so we can flash a custom recovery, then we can flash away. We have a root method now, so it's only a matter of time until our bootloaders are unlocked. IMO
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So wait, I've flashed a custom rom (echoe rom) on the galaxy s7 using flashfire and it works fine, so what would stop Cyanogenmod from working on the Galaxy s7?
ItsYaminNoodlez said:
So wait, I've flashed a custom rom (echoe rom) on the galaxy s7 using flashfire and it works fine, so what would stop Cyanogenmod from working on the Galaxy s7?
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That rom is still touchwiz based. Kernel is the same, usually cm/aosp roms use a different kernel or greatly modified kernel.
Sent from my SM-G930P using XDA-Developers mobile app
lvpre said:
That rom is still touchwiz based. Kernel is the same, usually cm/aosp roms use a different kernel or greatly modified kernel.
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Ah.
Has any one root the T-Mobile s7e with it already on 7.0?
I have been looking but not sure . I tried to root with the method on here but I get stuck in a bootloop when it restarts after flashing the AP boot file in Odin I have tried several ways. I want to know also. I'm running 7.0 and g935t .
Yes been out for a few days, haven't tried myself yet.
Tinythejuggalo said:
Has any one root the T-Mobile s7e with it already on 7.0?
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Using ambasadii rom for few days and it works nice
Link: https://forum.xda-developers.com/s7-edge/development/android-nougat-7-0-beta-1-rom-test-t3498664
But you need custom recovery, and rom is debloated + rooted
Just get a custom recovery, disable encryption and flash latest SuperSU 2.79 or Magisk. All good
Am I missing something.....why are the people above me saying to put a custom revovery on tmobile variant.... afaik that's not possible.
muppetmaster916 said:
Am I missing something.....why are the people above me saying to put a custom revovery on tmobile variant.... afaik that's not possible.
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I think that every exons proccesor (Europe) can be rooted.
But im not sure. I got my S7 from germany and its unlocked. No TMobile or other carrier.
Everything works good ?
T mobile is snapdragon. There is 7.0 root, it uses another engineering Bootloader
Right but there's no custom recovery, no custom kernel, no custom Rom, which is what the user was suggesting. Doesn't make sense. At least not for US variants.
muppetmaster916 said:
Right but there's no custom recovery, no custom kernel, no custom Rom, which is what the user was suggesting. Doesn't make sense. At least not for US variants.
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OP, i thought was asking for root. Flashfire is basically our only recovery atm for usa hence locked bootloader.. no custom kernels but we can tweak kernel via kernel author. We have custom roms but it's TouchWiz based.(stang 5.0 rom is awesome) Still better then having nothing imo.. xposed+root apps+romcontrol+system write, makes sense and worthwhile for me.
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
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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.
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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.
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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.
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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