Running rooted MF3, want to flash 4.3 GE - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I have done a lot of reading about a lot of roms here at xda... I've flashed several roms on my s4 so far in the few months ive owned it.
Currently running scroslers mf3 from 7/15, rooted, with ktoonsez kernel, mdl baseband.
Trying to be sure I dont brick my phone, cuz I like it.
If I want to flash one of the 4.3GE roms in this forum, do I need to flash back to mdl rom before flashing 4.3? For example, kangabean 4.3 rom says to flash from mdl rom with mdl baseband... if not mdl, odin back to mdl, then flash 4.3GE. But other 4.3 roms don't say this.... since I read and re read kangabean about 10 times, im wondering why they say to start from mdl and other roms dont seem to say that?
Any wisdom you have on this would be appreciated...
For the record, running twrp 2.6 and I have loki-doki available and ready to flash as needed.
Thanks for your help.
Sent from my SAMSUNG-SGH-I337 using xda premium

Any ROM you want to flash should have full instructions on how to flash it on the OP. I'd it does not, message the OP of the ROM to ask that they update their thread. Each ROM can and will have a different process.
Sent from my SPH-D710 using xda premium

Thanks for the reply... I have flashed lots of roms on various devices, but for some reason I thought I recently read something about bricking your device if you try and flash a rom after mf3.
I do appreciate your response and agree I will only flash a rom after clearly understanding each specific roms install instructions.
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dandroid7 said:
Thanks for the reply... I have flashed lots of roms on various devices, but for some reason I thought I recently read something about bricking your device if you try and flash a rom after mf3.
I do appreciate your response and agree I will only flash a rom after clearly understanding each specific roms install instructions.
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
That is only with the official MF3 OTA update.
Sent from my SPH-D710 using xda premium

I suspected that might be the case, but thought I'd ask just to be sure. Rather not brick my phone, this thing is amazing.
Thanks for the help.
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Related

which roms are compatible with SGH-I377M??

Hi
I root my shg-i377M with motochoper and installed recovery with goomanager.
I want to install Paranoid Android 3.6, but I'm not sure which rom (jfltecan or jflteATT) is compatible with my device. baseband: i377MUMAMB2
thanks
Do some more reading before you flash anything. If you don't know what the m is for in i337m and the difference between can and att you need to do some more research or you'll end up bricking your phone.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
jd1639 said:
Do some more reading before you flash anything. If you don't know what the m is for in i337m and the difference between can and att you need to do some more research or you'll end up bricking your phone.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
My phone is from Telcel, I have read some Canadian has also M but not sure. I also have read that people can Flash via Odin MDL image to M... too few information
he is right, you need to read alittle more before you jump right in, but this guide has your compatible roms....
http://forum.xda-developers.com/showthread.php?t=2295557

[Q] Safestrap Help

just accidentally installed another rom on top of that rom on my s4 i337 mf3 using safestrap any help would be amazing.
On top of what rom?
need more info
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jball said:
On top of what rom?
need more info
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
on top of stock rom, my stock rom was JeallyBean 4.2.2 i337 mf3 not mdl and i read there are no mf3 files for odin
So i managed to fix this problem just by downloading stock rom for my phone and flashing with safestrap: Galaxy S4 rooted Stock ROM AT&T SGH-i337 MF3 (i found that on google)
The rom i downloader is rooted. and it said to install Loki after finishing flashing rom but i managed not to.
after you finished flashing you need to install also: jflteatt-MF3-modules(attachment) : this will make your wifi to work.
Every thing i just said, worked for me! do this at your own risk! im not responsible for any damages!!!
Wait what if you flash MDL with safestrap, and use goo.im for TWRP? It could possibly brick but just an idea.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4
supitsronnie said:
Wait what if you flash MDL with safestrap, and use goo.im for TWRP? It could possibly brick but just an idea.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4
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Click to collapse
It wouldn't. The bootloader is still MF3 no matter what you do to the system, and so it will still be locked with no way to bypass it.

safestrap help! Please

Can someone help me understand why I'm not able to create a custom rom slot on safestrap..I was able to before don't know what happened.. Thanks please
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@BxBrotha730 said:
Can someone help me understand why I'm not able to create a custom rom slot on safestrap..I was able to before don't know what happened.. Thanks please
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Click to collapse
Maybe cause your not reading. Questions go on the Q&A forum. You don't have enough space to create a ROM slot try deleting some stuff than try creating a ROM slot again.
Sent from my SAMSUNG-SGH-I337 using xda premium
Thank u. that def worked.. I tried installing the omega ROM n then gaps.. both said successful install but when i boot up custom ROM I get just the blank screen.. I'm so close I think but can't nail it...n it's not just that I'm not reading.. I tried reading different things for 4days its just a lot o read through in order to find ur solution
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@BxBrotha730 said:
Thank u. that def worked.. I tried installing the omega ROM n then gaps.. both said successful install but when i boot up custom ROM I get just the blank screen.. I'm so close I think but can't nail it...n it's not just that I'm not reading.. I tried reading different things for 4days its just a lot o read through in order to find ur solution
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Click to collapse
.. No you aren't reading if you are trying to flash omega. Go back to the thread. Only certain Touch wiz based roms work, and only the 4.2.2 versions
Sent from my i337 MF3 using tapatalk.
Believe me I am... Actually going back to read thru the massive pages there is... appreciate the response
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
TheEgonSpengler said:
.. No you aren't reading if you are trying to flash omega. Go back to the thread. Only certain Touch wiz based roms work, and only the 4.2.2 versions
Sent from my i337 MF3 using tapatalk.
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Click to collapse
That sucks , but i have stock 4.2.2 running through Safestrap...
TheEgonSpengler said:
.. No you aren't reading if you are trying to flash omega. Go back to the thread. Only certain Touch wiz based roms work, and only the 4.2.2 versions
Sent from my i337 MF3 using tapatalk.
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Click to collapse
@BxBrotha730 said:
Believe me I am... Actually going back to read thru the massive pages there is... appreciate the response
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
It doesn't have to be a touch wiz rom it only has to be 4.2.2. This why GPE version 4.2.2 works.
Are you sure you installed the 4.2.2 version of Omega?
The correct link to the working version of Omega can be found in the OP here.
Edit: Just looked at the link and it appears he pulled the 4.2.2 version of Omega. I know the 4.2.2 version works because I am running it.
May look through the Omega thread and see if you can find a link to the 4.2.2 version.
rayburne said:
It doesn't have to be a touch wiz rom it only has to be 4.2.2. This why GPE version 4.2.2 works.
Are you sure you installed the 4.2.2 version of Omega?
The correct link to the working version of Omega can be found in the OP here.
Edit: Just looked at the link and it appears he pulled the 4.2.2 version of Omega. I know the 4.2.2 version works because I am running it.
May look through the Omega thread and see if you can find a link to the 4.2.2 version.
Click to expand...
Click to collapse
Per the post you linked in bold blue text : Also, at this time, only TW based ROMs will work with SS. CM, AOSP, AOKP, MIUI, etc will not work
Sent from my i337 MF3 using tapatalk.
TheEgonSpengler said:
Per the post you linked in bold blue text : Also, at this time, only TW based ROMs will work with SS. CM, AOSP, AOKP, MIUI, etc will not work
Sent from my i337 MF3 using tapatalk.
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Click to collapse
Thanks for catching that. You are correct. The one linked is for a TW version.
Thanks for correcting me however Omega for the I9505 is TW based and works.
rayburne said:
It doesn't have to be a touch wiz rom it only has to be 4.2.2. This why GPE version 4.2.2 works.
Are you sure you installed the 4.2.2 version of Omega?
The correct link to the working version of Omega can be found in the OP here.
Edit: Just looked at the link and it appears he pulled the 4.2.2 version of Omega. I know the 4.2.2 version works because I am running it.
May look through the Omega thread and see if you can find a link to the 4.2.2 version.
Click to expand...
Click to collapse
That is what I did wrong.. Downloaded wrong omega file
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Just a careful issue, as it appears to be possible to ensnare yourself in a situation only a authorized retailer like Best buy can get you out of.
Sent from my i337 MF3 using tapatalk.
TheEgonSpengler said:
Just a careful issue, as it appears to be possible to ensnare yourself in a situation only a authorized retailer like Best buy can get you out of.
Sent from my i337 MF3 using tapatalk.
Click to expand...
Click to collapse
No need for Best Buy anymore as the MF3 ODIN files have been released.
Matter of fact people are flashing over their MF3 stock slots now with Safestrap since this is now released and you can recover back to MF3 without Best Buy.
Can you still get to flash mode? Thought it went to the dreaded contact ATT boot screen.
Sent from my i337 MF3 using tapatalk.
As long as you can get into download/odin mode you should be able to recover.
Lot's of people have recovered the MF3 devices without going to best buy.
If you can't get into download mode, I'm not even sure if BB would be able to flash the phone to recover.

Can I flash nc4, nc8, nc9, etc. Roms over a nb1 ROM?

In the Att all thing mk2 nb1 section it has all this ROMs that are all 4.4.2 based but I wasn't sure if they would work and could be flashed over a nb1 ROM in another slot
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jsimsfour said:
In the Att all thing mk2 nb1 section it has all this ROMs that are all 4.4.2 based but I wasn't sure if they would work and could be flashed over a nb1 ROM in another slot
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
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Click to collapse
To be on this forum and understand your phone you got to do some reading. This question has been made hundred of times. When i join this forum they would be really nasty for asking the same question over and over.
I will give you an answer anyway.
Since you have one of the latest builds. AT&T has locked the bootloader which makes very hard the process of rooting and installing custom roms. In other words you can only flash TW roms.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
netomel said:
To be on this forum and understand your phone you got to do some reading. This question has been made hundred of times. When i join this forum they would be really nasty for asking the same question over and over.
I will give you an answer anyway.
Since you have one of the latest builds. AT&T has locked the bootloader which makes very hard the process of rooting and installing custom roms. In other words you can only flash TW roms.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yes i knew that nb1, mk2, and mf3, all have lock bootloaders which mean i can only flash tw based roms. I was asking if the others like nc8 nc9 build numbers are like variants of nb1 or something like that since they are listed under 4.4.2 tw based roms. now im thinking that those are for people who had what ever build came before mf3 that can use loki to flash the latest roms.lease tell me if im wrong.
jsimsfour said:
Yes i knew that nb1, mk2, and mf3, all have lock bootloaders which mean i can only flash tw based roms. I was asking if the others like nc8 nc9 build numbers are like variants of nb1 or something like that since they are listed under 4.4.2 tw based roms. now im thinking that those are for people who had what ever build came before mf3 that can use loki to flash the latest roms.lease tell me if im wrong.
Click to expand...
Click to collapse
You can flash any build that is the same android version. The only thing that people with Loki get are AOSP ROMs. Other bases like nc9 and others are still Touchwiz.
Sent from my SGH-I337 running BlackBox 3.0
DeadlySin9 said:
You can flash any build that is the same android version. The only thing that people with Loki get are AOSP ROMs. Other bases like nc9 and others are still Touchwiz.
Sent from my SGH-I337 running BlackBox 3.0
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OK and if a rom has I9505 for the model of the s4 I can flash that from as long as it to based and I flash the 1337 kernel ?
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jsimsfour said:
OK and if a rom has I9505 for the model of the s4 I can flash that from as long as it to based and I flash the 1337 kernel ?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
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Yes. Any Touchwiz ROM from any S4 except the 8 core I9500 will work.

I'm Looking For A Custom Kitkat 4.4.2 Rom For My S4

I am looking for a custom KitKat rom 4.4.2. All the ones I'm finding will not flash successfully. The one I did find was messing up my phone modem (radio) and it was causing dropped calls and EDGE connection problems so I flashed it back to stock. I want a new custom rom without this issue that is rooted with Wifi/tethering.
I have the Samsung Galaxy S4 SGH-I337 model with AT&T.
I appreciate any help it I can get with this!
matth84 said:
I am looking for a custom KitKat rom 4.4.2. All the ones I'm finding will not flash successfully. The one I did find was messing up my phone modem (radio) and it was causing dropped calls and EDGE connection problems so I flashed it back to stock. I want a new custom rom without this issue that is rooted with Wifi/tethering.
I have the Samsung Galaxy S4 SGH-I337 model with AT&T.
I appreciate any help it I can get with this!
Click to expand...
Click to collapse
If you take the time to read like most of us have. You will find out that you can't flash custom rooms if you are on kit kat until devs find exploit, which is going to be very hard.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
What's your build number--then we can be more specific in our help.
And what roms did you try--
rugmankc said:
What's your build number--then we can be more specific in our help.
And what roms did you try--
Click to expand...
Click to collapse
From what he says you could tell he is either on mk2, nb1 or NC1 which the bootloader is lock down and as most of us know we can only flash Tw roms.
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netomel said:
From what he says you could tell he is either on mk2, nb1 or NC1 which the bootloader is lock down and as most of us know we can only flash Tw roms.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I don't get that from his post. He wants to flash a kk custom rom and he seems to be able to flash roms which tells me he has a custom recovery.
Op, can you tell us what firmware version you're on?
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
I don't get that from his post. He wants to flash a kk custom rom and he seems to be able to flash roms which tells me he has a custom recovery.
Op, can you tell us what firmware version you're on?
Sent from my Nexus 5 using XDA Free mobile app
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I didn't either, want to be sure our recommendations are correct--:good:

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