Develop Bugs

[Q] "Knox" firmware and the m919 version?

I have read (<here> and <here>)
about new firmware versions that will not allow resetting the counter (warranty flag) to initial conditions when restoring to stock after after unlocking or rooting.
If the phone developed a hardware problem, warranty repair could be denied.
The firmware version "MGG" and beyond are reported to have this problem.
Questions:
Does this also apply to the m919 T-Mobile version?
Has anybody seen it on an m919?
Is it going out with an OTA update?
Or is MGG specific to the i9505?
I am shopping for a GS4 m919, and I want confirm that it has the "pre-MGG" firmware version before purchase.
Questions:
Is the ID contained in the "Baseband" ID string in the phone information?
Are there different identifier strings used on the M919?

The T-Mobile S4 has not received the KNOX Bootloader, it will most likely come with the 4.3 update. If anyone is on stock, I would recommend you guys disable OTA updates as you may get automatically updated to 4.3 with the KNOX bootloader.

for once...im dreading an update from tmobile

If I've already rooted and installed a custom recovery (Clockwork Mod), and nothing else, does anyone know if the 4.3 update with KNOX will still be usuable? In other words, will the phone still get an automatic OTA update and will that update install correctly?
Sent from my SGH-M919 using XDA Premium 4 mobile app

DigitalHeretic said:
If I've already rooted and installed a custom recovery (Clockwork Mod), and nothing else, does anyone know if the 4.3 update with KNOX will still be usuable? In other words, will the phone still get an automatic OTA update and will that update install correctly?
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It wont let you get the update it will pop a box up saying unable to uodate your device has been modified. . Try to check for an uodate youll see what im talking about... I went back to stock just to see if there was anything for updates which there wasnt andbwent to reroot and installed su abd it didn't flash correctly thru odin said to heck with it till the am checked for an update for giggles in the am and wouldn't even check
Sent from my SGH-M919 using Tapatalk

i'm glad I read this thread. i was going to wait until i tried the stock 4.3 update before deciding to root and install custom ROMs. With KNOX coming, I'm just going to root ASAP. I like PA on my Nexus4, so I'll probably go with that for my S4.

So you guys are saying the new update with "knox" won't allow you to reset the counter and only that or will it stop you from completely rooting and installing custom roms?
Sent from my SGH-M919 using Tapatalk

futty said:
So you guys are saying the new update with "knox" won't allow you to reset the counter and only that or will it stop you from completely rooting and installing custom roms?
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
Let me clarify some things. The KNOX processes and functions are already on the stock ROM, most devs remove them, though. So many of you with custom ROMs haven't seen anything related to KNOX.
What the new T-Mobile update (when it gets pushed out) is most likely to come with is a "KNOX Bootloader" which will introduce a thing called "KNOX Flag" which is similar to the old counter we're all used to. This is the counter that @Chainfire was successful in resetting with his app, Triangle Away.
Unfortunately, @Chainfire or anyone else for that matter, has not been able to reset the KNOX flag.
The KNOX flags is this:
0x0 = You have not tripped the KNOX flag.
0x1 = You have tripped the KNOX flag.
Again, once you trip that flag, rooting, flashing a custom recovery, etc.. there is NO way to reset it as of now. And any KNOX functionality on your phone will not work. But the worst part is Samsung will refuse warranty on your device if they see a 0x1 in your bootloader.
Another thing.. on the new bootloader, if you try to downgrade, even with an official Samsung firmware, it will fail and you will trip the KNOX flag.
So once you're on the new bootloader, there's no going back.
There's been speculation that there's an eFuse at play here.
Anyway, this is the reason why I am suggesting you all disable OTA updates and wait until a ROM is built without the new bootloader and all the functions (Wifi, MMS, etc.) are working.

mgbotoe said:
for once...im dreading an update from tmobile
Click to expand...
Click to collapse
Hey, its sammy we have to blame for this one :/ Not T-Mobile lol.
PSSSST! Don't let them know you are dreading it, or they might put it off longer xD
As to the OP.
The KNOX Warranty counter is rumored to be what is called an eFUSE. If this is true, then resetting the KNOX warranty counter will be impossible without taking apart your phone and replacing that specific eFUSE.
However, there are rumors that some root methods DO NOT trip this new counter. Is that good? Yes, is that bad? Yes. For those users who like stock kernels and just wanna root, this is okay for them. But for 99.999999 percent of us who love to flash new kernels and get more from our devices, then it trips the counter.
I personally congratulate Samsung as well as hate them at the same time for this. I congratulate them because what seems to be happening a lot is users flash a million and 2 things to their device having not one single clue what they are doing, thus bricking their 500+ dollar smartphone then claiming it as a warranty claim and getting another one. I also feel they are trying to flex their ego muscles too -.-
I also believe that if you have insurance, this does not apply. It is only for warranty claims. Which like you stated OP, it only means Samsung can choose to deny to repair or replace it. I have read a lot of thread before where users tripped the older binary flash counter, and still were given a new device. I honestly don't know how this is going to play out for the lot of us. For me, my warranty is over in a few months anyhow so i don't really care. But its still kind of a dickish thing Samsung is doing.
I am also hoping that we can extract the contents of the new update and keep our older bootloaders and create a flashable zip with the new update stuff and have it still work. I know there were some issues with the international S4 4.3 update but im not sure if it was entirely caused by the bootloader.

Exel said:
Anyway, this is the reason why I am suggesting you all disable OTA updates and wait until a ROM is built without the new bootloader and all the functions (Wifi, MMS, etc.) are working.
Click to expand...
Click to collapse
Where do you disable OTA updates on a stock S4?
Hitting "Software Update" takes me to a Boolean"Update Now" popup with no other option than choosing Yes, No or Wifi. No option to defeat future updates is offered.
Going into developer mode doesn't seem to add any pertinent options either (correct me if I'm wrong).
Clearly, Samsung doesn't want us to be able to disable updates unless or until we root, which I'm doing this weekend on the basis of this thread.

Reignogleph MMXI said:
Where do you disable OTA updates on a stock S4?
Hitting "Software Update" takes me to a Boolean"Update Now" popup with no other option than choosing Yes, No or Wifi. No option to defeat future updates is offered.
Going into developer mode doesn't seem to add any pertinent options either (correct me if I'm wrong).
Clearly, Samsung doesn't want us to be able to disable updates unless or until we root, which I'm doing this weekend on the basis of this thread.
Click to expand...
Click to collapse
You indeed have to root to disable OTA updates.

Once the update hits im going to extract the system.img to get all the files.
Then explore where all of the Knox crap is and get rid of it.
I know I want be alone in doing this...all who develop for the S4 will be on top of it.
Someone will figure out a way to get around this Knox BS...
Sent from a Insane S4
SICK MADE DEVELOPMENT

alloycowboy said:
Once the update hits im going to extract the system.img to get all the files.
Then explore where all of the Knox crap is and get rid of it.
I know I want be alone in doing this...all who develop for the S4 will be on top of it.
Someone will figure out a way to get around this Knox BS...
Sent from a Insane S4
SICK MADE DEVELOPMENT
Click to expand...
Click to collapse
thats fine and dandy for us with existing phones.. I already removed all the knox crap from my phone, and will update but not kernel and do the same..
But what about all future phones.. If indeed the kernel is locked with knox and there is no way to remove it we are screwed for new phones coming out.

lgkahn said:
thats fine and dandy for us with existing phones.. I already removed all the know crap from my phone, and will update but not kernel and do the same..
But what about all future phones.. If indeed the kernel is locked with knox and there is no way to remove it we are screwed for new phones coming out.
Click to expand...
Click to collapse
I agree. If thats the case....then alot of people will ditch Samsung.
But I have a feeling we will figure out Knox. Its man made so it can be hacked. Who when and how is the question.
Sent from a Insane S4
SICK MADE DEVELOPMENT

that's also why I paid 400 bucks for a T-Mobile sgs 4 and I am using it on at&t... I refuse to pay or support a phone with a locked bootloader.. matter of principle...i would ditch att if T-Mobile had decent service in my area.
Sent from my SGH-M919 using Tapatalk 2

Clarifications about KNOX and the S3

AFAIK nobody has asked anything about KNOX on the T999, so I have a few things I want to know before updating my phone to 4.3.
I bought my phone off-contract at full price and its flash counter has already been incremented many times from rooting, so I obviously don't care about setting the "KNOX warranty void" flag either, nor the enterprise-grade security features KNOX provides.
However, there is a rumor that once the KNOX warranty void flag is set to 0x1 you can't upgrade the ROM anymore, not even via Odin. Is this actually true? I know you can't OTA unless you're stock, but I don't care about OTA since I'd just upgrade via Odin anyways. But the fact you can't even upgrade via Odin seems a bit far-fetched.
Another variant of this rumor that seems more believable is that updating to a KNOX-enabled ROM also updates the bootloader to a KNOX-enabled variant, and that you can't upgrade to new KNOX-enabled ROMs if you decide to downgrade to a non-KNOX ROM after the bootloader has been updated. But if I never downgrade, can I continue to install updates, assuming Samsung releases ROMs for the S3 after 4.3?
Can anyone shed some light on this?

I somehow can't trust the first one. However the second one sounds more plausible. Anyway doc Holliday has removed KNOX from the most recent leaked Stock Rom. So this question becomes moot really.

Perseus71 said:
I somehow can't trust the first one.
Click to expand...
Click to collapse
Which is exactly why I asked this. I just wanted some more opinion.
Perseus71 said:
Anyway doc Holliday has removed KNOX from the most recent leaked Stock Rom.
Click to expand...
Click to collapse
And does this also mean that the bootloader isn't KNOX-enabled?

jim45 said:
Which is exactly why I asked this. I just wanted some more opinion.
And does this also mean that the bootloader isn't KNOX-enabled?
Click to expand...
Click to collapse
I don't think so. I flashed that Leak to test out the features. Afterwards flashed back my regular AOSP Rom.
NOTE - With the Leak, some reported that the Bootloader didn't get updated. I explicitly asked as well. If you are concerned with Knox'd Bootloader, you can Flash back UVDMD5 Bootloader too!

Here's what I know so far.
First, we do not have to worry about the Knox counter. One of my sources sent me a pic of their download mode and it was not there.
Second, I have reliable doubts that our official release will NOT include Knox. It's only included now for ease of using the same builds across multiple devices during internal testing.
Third, the bootloader is not included in any of the leaks. I do have a copy of it and have been considering releasing a recovery flashable firmware update, but haven't decided yet if I want to do this.
One of my sources ran into a problem at one point and soft bricked. Samsung simply connected remotely and flashed the firmware via Odin.
As for not being able to downgrade or flash certain things, I do not think this is the case at all. If you do something Knox doesn't like, it will lock down the secure containers it uses and you will not be able to regain access. I do not belie e it will restrict you from flashing something else, old or new, firmware or Rom, etc.
There is still a lot I do not know about it, but the information is out there. I stopped putting time into it when I found we probably won't need to worry about it anyway.
A quick Google search will net you more info, but if you really want an education on it I'd suggest visiting the S4 and Note3 forums. S4 users have been dealing with Knox longer than anyone, and the Note3 is the first device to ship with it fully implemented.
Sent from my SGH-T999 using Tapatalk

[Q] chainfire root

Just got two T-Mobile Note 3's and want to root them as I did our Verizon Note 2's.
Was watching the XDA video on using the chainfire method (which I used to root my Note
tablet) and it looks like the way to go.
That video came out in Oct of 2013. The little owners manual thingie that came
with the phones states that any "If unauthorized firmware is placed on the device it will not
work."
Question: Does anyone know if Samsung has buggered up the phone since October
so that the root no longer works, or am I still good to go?
Thanks!

dal71 said:
Just got two T-Mobile Note 3's and want to root them as I did our Verizon Note 2's.
Was watching the XDA video on using the chainfire method (which I used to root my Note
tablet) and it looks like the way to go.
That video came out in Oct of 2013. The little owners manual thingie that came
with the phones states that any "If unauthorized firmware is placed on the device it will not
work."
Question: Does anyone know if Samsung has buggered up the phone since October
so that the root no longer works, or am I still good to go?
Thanks!
Click to expand...
Click to collapse
You can root a couple different ways. It depends on if you want to trip Knox or not.

I literally just used chainfires auto-root via Odin and it worked fine
Sent from my SM-N900T using XDA Premium 4 mobile app

Beefvvl said:
You can root a couple different ways. It depends on if you want to trip Knox or not.
Click to expand...
Click to collapse
Thanks for the response, but I'll admit to being enough of a newbie not to know what you mean by trip Knox?

Knox is new Samsung secure environment, if you start flashing ROMS etc it will trip Knox flag which no one knows how to reset, if it ever can be reset. Samsung can and did refuse any warranty repairs if the Knox flag is tripped. As far as rooting goes if your firmware is below MJ7 I think, you won't trip the flag, if it's MJ7 and above the flag will be tripped I think. For example I have MI7 (last 3 digits of FW build) so I can root, without setting flag. Anyhow, I would suggest you read and learn as much as you can here, before you do something you can't undo.

I really wanted to wait until the 4.4.2 Kitkat update before I root.... but I can't wait.
I think I will cave in and get root this weekend!

[Q] Clarifying questions..

I'm thinking of upgrading from my GS3, non lte, to the Note 3. As I've looked around the forms here, it would seem as though Knox is an added security measure so t-mobile can more easily detect root?
Is there a way to have root without tripping this counter? Is there a way to flash a custom Rom or kernel without tripping it?
If this has been answered apologize, I did look around before making new thread.
Thanks!
Also on a side note, white or black note 3?

t3tr1s_ said:
I'm thinking of upgrading from my GS3, non lte, to the Note 3. As I've looked around the forms here, it would seem as though Knox is an added security measure so t-mobile can more easily detect root?
Is there a way to have root without tripping this counter? Is there a way to flash a custom Rom or kernel without tripping it?
If this has been answered apologize, I did look around before making new thread.
Thanks!
Also on a side note, white or black note 3?
Click to expand...
Click to collapse
Knox isn't really for T-mobile to detect root/custom firmware but for Samsung warranty. A fair amount of people on here have stated that they still sent their phones in to Sammy for warranty and they still got their phones fixed. T-mobile really only look for cracked screens, water damage and that the phone powers on and boots up. Not to say you'll never have an issue but i would say it's not really that big of a deal to trip the Knox counter. Especially if you bought the insurance like Asurion. I don't think they even care if your rooted and ROM'd

Awesome. My concern here is that I would be disqualified from the jump program... I'd like to get the Note 4 as soon as it comes out.. Is there currently any way to root and flash a room without tripping Knox? Or can we only root without tripping Knox?

Before this gets locked, yes you can root without tripping knox. As mentioned knox is for samsung to deny repairs if they see fit (if the phone is sent to them). Tmobile could care less if the phone is rooted or not. You just have to be careful about warranty repairs for samsung, thats what they may or may not look at.

t3tr1s_ said:
Awesome. My concern here is that I would be disqualified from the jump program... I'd like to get the Note 4 as soon as it comes out.. Is there currently any way to root and flash a room without tripping Knox? Or can we only root without tripping Knox?
Click to expand...
Click to collapse
On the old 4.3 firmware yes you can root with Root De La Vega and not trip the Knox counter but once you put ANY custom recovery it will trip the counter. Now on the OTA 4.4.2 that was released on Wednesday, the only 2 current ways to root (TWRP or Philz CWM) will trip the Knox counter no matter what. So until something comes out like an updated ROOT De La Vega, there's no way to even root without tripping the Knox counter.
Also from what i read, RDLV isn't being developed anymore so unless they decide to do something with it for the all the 4.4.2 releases hitting phones these days there may not be anything for a bit to root without tripping knox.

Jfree3000 said:
Before this gets locked, yes you can root without tripping knox. As mentioned knox is for samsung to deny repairs if they see fit (if the phone is sent to them). Tmobile could care less if the phone is rooted or not. You just have to be careful about warranty repairs for samsung, thats what they may or may not look at.
Click to expand...
Click to collapse
That is true for 4.3 but so far you can't on 4.4 from everything I have seen. Do you now of a way to not trip knox on 4.4?

Jfree3000 said:
Before this gets locked, yes you can root without tripping knox. As mentioned knox is for samsung to deny repairs if they see fit (if the phone is sent to them). Tmobile could care less if the phone is rooted or not. You just have to be careful about warranty repairs for samsung, thats what they may or may not look at.
Click to expand...
Click to collapse
Did I miss something? Is there a way to Root 4.4.2 without tripping Knox? I don't care I've tripped Knox the first night i had my N3 but I didn't think there was a way. Kningo and RDLV i thought borked the phones and caused bootloops.

My t-mobile store says that if you root your phone then it voids your warranty, so obviously they won't allow me to upgrade... So I know they check for it.. How is it you guys have stores where they don't seem to care?

[Q] Modified Note 3? Won't let me update :(

Hey, everyone! I tried googling this for hours and I still haven't found a solution, so here goes:
A couple days ago, I deleted an important image from my T-Mobile Note 3 and I was freaking out, searching high and low for a solution. I read on Yahoo! answers to download DiskDigger, but the device must be rooted in order to install it. So, I tried to root my device with KINGO Root, which totally failed and then my device just went into bootloop and I thought I messed up my device for good. Luckily, on a different thread someone suggested to use the Youtube video GalaxyNote2Root made to unbrick my Note 3. (Even though it was for Note 2, it was the same concept and I did find the stock firmware on samsung-updates for my Note 3.) It ended up working successfully and then I continued to try root my Note 3 using Odin and the video instructions on xda forum (which I should have just done in the first place) and that worked successfully, too.
Now, my problem is, is when I went to update my Note 3 under settings, it says "Your device has been modified. Software updates are not available." I tried using Triangle Away (I don't know if I did it correctly) and also 1-click unrooting my device in SuperSU. I'm a huge noob at this rooting stuff, but what I gathered from all the research I did on Google, I apparently tripped "Knox". When I go into download mode it reads:
Current Binary: Samsung Official
System Status: Official
Knox Kernel Lock: 0x0
Knox Warranty Void: 0x1
So, a couple questions I have are, how do I "unmodify" my Note 3 so I can get updates? Is there a way to reset my Warranty Void back to 0x0? Will this always happen if I want to root my Note 3? Thanks in advance!

you can not revert knox back to 0x0, no method so far for this....
so you can receive updates, just flash through ODIN, the firmware ... I believe all Samsung phones and tablets will tell you about being modified for updates, if you rooted the phone.

gooseprince7 said:
Hey, everyone! I tried googling this for hours and I still haven't found a solution, so here goes:
A couple days ago, I deleted an important image from my T-Mobile Note 3 and I was freaking out, searching high and low for a solution. I read on Yahoo! answers to download DiskDigger, but the device must be rooted in order to install it. So, I tried to root my device with KINGO Root, which totally failed and then my device just went into bootloop and I thought I messed up my device for good. Luckily, on a different thread someone suggested to use the Youtube video GalaxyNote2Root made to unbrick my Note 3. (Even though it was for Note 2, it was the same concept and I did find the stock firmware on samsung-updates for my Note 3.) It ended up working successfully and then I continued to try root my Note 3 using Odin and the video instructions on xda forum (which I should have just done in the first place) and that worked successfully, too.
Now, my problem is, is when I went to update my Note 3 under settings, it says "Your device has been modified. Software updates are not available." I tried using Triangle Away (I don't know if I did it correctly) and also 1-click unrooting my device in SuperSU. I'm a huge noob at this rooting stuff, but what I gathered from all the research I did on Google, I apparently tripped "Knox". When I go into download mode it reads:
Current Binary: Samsung Official
System Status: Official
Knox Kernel Lock: 0x0
Knox Warranty Void: 0x1
So, a couple questions I have are, how do I "unmodify" my Note 3 so I can get updates? Is there a way to reset my Warranty Void back to 0x0? Will this always happen if I want to root my Note 3? Thanks in advance!
Click to expand...
Click to collapse
well, you can just reodin a stock unrooted firmware, and then otas will work again, but Knox is basically always tripped.

why even use odin when you have SAMSUNG KIES. put your phone in download mode first, load KIES on your computer, then go to tools>firmware upgrade and intialisation and then follow the step by step direction.
if this helped just press the thanks button!

jdidtht said:
well, you can just reodin a stock unrooted firmware, and then otas will work again, but Knox is basically always tripped.
Click to expand...
Click to collapse
Can you link me to an unrooted firmware? And when I flash my device with the unrooted firmware, do I uninstall root first or will this just take care of the whole thing?

mdiaz33685 said:
you can not revert knox back to 0x0, no method so far for this....
so you can receive updates, just flash through ODIN, the firmware ... I believe all Samsung phones and tablets will tell you about being modified for updates, if you rooted the phone.
Click to expand...
Click to collapse
I tried unrooting the phone and it was still not letting me update because it was still "modified". I thought this was because I tripped Knox, but maybe I didn't unroot correctly??

gooseprince7 said:
Can you link me to an unrooted firmware? And when I flash my device with the unrooted firmware, do I uninstall root first or will this just take care of the whole thing?
Click to expand...
Click to collapse
when u flash the stock firmware in Odin it will overwrite root, so no worries. just follow the first part of this guide. obviously don't flash root, or custom recovery. just follow the first part of this http://forum.xda-developers.com/showthread.php?t=2765014
or, you could also go to a website called sammobile and download the latest ne6 firmware. The link I provided is also the latest ne6 firmware guide, and like I said just follow the guide up to the the root part and you will be good. it will over write root, and whatever else. good to go.
---------- Post added at 10:39 AM ---------- Previous post was at 10:36 AM ----------
gooseprince7 said:
I tried unrooting the phone and it was still not letting me update because it was still "modified". I thought this was because I tripped Knox, but maybe I didn't unroot correctly??
Click to expand...
Click to collapse
yea, you must of done something incorrect. now, you won't have any updates after following the ne6 guide, as you will be on the latest firmware. but if you continue to stay on it you will indeed be able to grab otas when they come. personally I would just root, stay rooted, and keep up to date with roms, and kernels, and all that crap.