Database Users

Samsung KNOX - a warning for the leaked 4.3 roms...

Just been through training for KNOX at work - and without blowing my NDA's - i'll pass on this for you all
If you EVER want to use KNOX - and you run one of the leaked 4.3 roms - NEVER NEVER NEVER flash any custom binaries to the phone again - you can only EVER run an offical untouched rom.
If you ARE running a 4.3 rom - reboot your phone into odin mode and see if you have a KNOX warrenty bit set to 0x0.
if you do - and you EVER want to use KNOX (and after training - im going to be using it meself) - you now can not roll back - or install a custom kernel or pretty much anything apart from further factory roms.
If you install anything else - the KNOX and TIMA systems will blow a fuse on the motherboard of your note2 and you will get flagged with KNOX warrenty bit 0x1.
This is not reversable - ever - without a board replacment.
The only effect will be that you cannot ever run KNOX after this - private or enterprise versions.
The first leaked 4.3 rom didnt have this enabled - the second one did (UEMJ5).
This is enforced in the bootloaders - once you get it - you cant go back.
If you dont care about KNOX - go hard However if your are going to use a BYOD type setup at your work and they want to enforce KNOX and youve blown the fuse in the motherboard - to be blunt - you are screwed Its not reversable sorry.
If you dont know what KNOX is actually about (if youve read "Little Brother" by Cory Doctorow think phone inside a phone type things) check out https://support.samsungknox.com/home and have a chew through it - there are some very good parts to it....
In any case - if you dont care about KNOX - go hard - nothing has changed.
If you DO care about KNOX - your not going to be able to change the firmware on your phone at all ever - if you do you will lose permanently the ability to run KNOX.
if you want to use your phone for work and work wants KNOX and your a custom rom person - your ****outaluck =)
And KNOX is not just the apk's..... its the entire stack from bootloaders upwards....
have fun peoples

I didn't think the Note 2 has the eFuse on its motherboard?

I'm running Hurricane ROM and it hasn't got any KNOX and the new bootloader stuff. I think this problem is with the "original" (leaked) 4.3 ROM

On the one hand I object to this kind of control by Samsung, it's my phone and I resent them wanting to control it.
On the other, I understand that many businesses don't want their staff using their network connections or accessing their data without protection and separation.
I do my best to not use my phone at all for my employers's business, but if they wanted me to and told me knox was obligatory then I would tell them they would have to provide a mobile device for me to use as I would tell them I could/wouldn't be able to promise that I wouldn't lose knox due to custom roms.

FloatingFatMan said:
I didn't think the Note 2 has the eFuse on its motherboard?
Click to expand...
Click to collapse
Backporting and using a fuse that hasnt been exposed or used previously - apparently there are unused fuses in the system there
in reply to Chris189 "I'm running Hurricane ROM and it hasn't got any KNOX and the new bootloader stuff. I think this problem is with the "original" (leaked) 4.3 ROM "
the original didnt give me the fuse setting - the new rom did give me the fuse setting
im curious to find out if a samsung signed rom with knox disabled will allow a rollback offically - but i dont think your going to get any leaking like that.
And from 2k14 going forward - all samsung devices will be running this
also take note of the "SELinux" permissive / enforced state..... enforced may break some apps....
anyways - back to work - "hoo...ray"
have fun peoples

Will root on stock rom and stock bootloader invalidate KNOX?
Sent from my GT-N7100 using XDA Premium 4 mobile app

emgluon said:
Will root on stock rom and stock bootloader invalidate KNOX?
Sent from my GT-N7100 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
From what the Samsung trainers were saying - once KNOX is on there and has that KNOX warrenty bit available (can be seen from odin mode on the phone - power , vol down and home when booting) a rollback will blow the fuse even to a factory rom - not really willing to try it on my note 2 to confirm sorry

Should have said... any idea of rooting 4.3 by whatever method invalidate this KNOX thing.
Had a feeling that most rooting involve flashing at least a insecure bootloader for it to work?
Sent from my GT-N7100 using XDA Premium 4 mobile app

Bull ****

here the solution by dr ketan..do not worry mate.
http://forum.xda-developers.com/showthread.php?t=2500823

cbdrift said:
...If you EVER want to use KNOX - and you run one of the leaked 4.3 roms - NEVER NEVER NEVER flash any custom binaries to the phone again - you can only EVER run an offical untouched rom...
Click to expand...
Click to collapse
Not applicable to Note2. This isn't the S4/Note3.
K thx

I don't know why Samsung implemented this stupid thing for Note2, maybe we can have 4.3 month earlier without this totally uselles ****, or have 4.3 with useful Note 3 things....do anyone know which manager decided about this ****?
Thx Jiri

note2 n7100 india running on 4.3 N7100XXUEMJ5
sora9009 said:
here the solution by dr ketan..do not worry mate.
http://forum.xda-developers.com/showthread.php?t=2500823
Click to expand...
Click to collapse
yes i tried it. it worked well for me.but wen i tried to go back to 4.1.2 i had no network and cudnt make calls from my phone.i flashed 4.3 N7100XXUEMJ5 back and its working well for now.anyone else had such problem? any solutoins?

vickyvc said:
yes i tried it. it worked well for me.but wen i tried to go back to 4.1.2 i had no network and cudnt make calls from my phone.i flashed 4.3 N7100XXUEMJ5 back and its working well for now.anyone else had such problem? any solutoins?
Click to expand...
Click to collapse
Did you have your IMEI when you flashed back? May have needed to restore your EFS? Or reflash the original modem?

To put the Knox worries aside, I did the following test.
Install newest leak (MJ5) bootloader (with knox). Warranty bit was 0.
Installed MI6 and installed knox which worked. Warranty bit was 0.
Flashed CWM recovery from Odin, suprisingly knox was still working. Warranty bit was still 0. Binary flash counter increased
Restored CM10.2 Nandroid backup. Warranty bit was still 0
So it seems that with the MJ5 bootloader, no knox fuse is being blown and you are able to rollback to a previous version without issues (if you have backed up EFS when you want to go back from 4.3 -> 4.1).

official font?

note 2 running on 4.3 N7100XXUEMJ5
Bert.C said:
Did you have your IMEI when you flashed back? May have needed to restore your EFS? Or reflash the original modem?
Click to expand...
Click to collapse
wen i went to 4.1.2 my IMEI was 004999010640000 and wen i flashed back to 4.3 N7100XXUEMJ5 it restored my original IMEI.
thanks for replying so fast........

FloatingFatMan said:
I didn't think the Note 2 has the eFuse on its motherboard?
Click to expand...
Click to collapse
The efuse thingy is complete bullcrap ( even on S4 or N3 ) :silly:
http://forum.xda-developers.com/showthread.php?t=2504258
---------- Post added at 08:52 PM ---------- Previous post was at 08:49 PM ----------
vickyvc said:
yes i tried it. it worked well for me.but wen i tried to go back to 4.1.2 i had no network and cudnt make calls from my phone.i flashed 4.3 N7100XXUEMJ5 back and its working well for now.anyone else had such problem? any solutoins?
Click to expand...
Click to collapse
if u want to go back to 4.1.2 u need newer builds which have the new EFS changes ( older builds will show fake IMEI if u don't have backup from the old EFS )

Mj5 bootloader can easily be downgraded to the previous bootloader without any issues
Sent from my GT-N7100 using XDA Premium 4 mobile app

srfairhurst said:
Bull ****
Click to expand...
Click to collapse
So it sounds as if this thread is inaccurate. Is it complete bs or are precautions actually needed for Note 2 users?
Sent from my SPH-L900 using Tapatalk

[S4 mini: GT-I9195] Knox warranty void 0x1 – all downsides

Hey guys,
I've read lots of articles about Knox and the whole eFuse thing but the more I read the more unsure I get about rooting my S4 mini. Because of this and because I think you don't get any S4s without "activated" Knox Bootloader anymore I thought it would be helpful for all S4 mini owners (and maybe all Knox device owners in general) to list all downsides and also rumors about "blowing the eFuse" to hopefully take away some of the fears.
I think it's already clear that you could loose your warranty if you got a 0x1 flag. Which doesn't seem to affect EU people But anyway, I'd rather like to get a list of all the irreversible consequences with your device itself when rooting etc:
:: EDITED & ADDED SOME QUESTIONS ::
The answers in green = positive or red = negative show the current state according to the replies in here, If you have other experiences please let us know.
[ROOTING tripping KNOX 0x1]
Are there any irreversible malfunctions when rooting your device (especially the GT-I9195) and turning to "knox warranty void 0x1"?
Are all (pre-installed) apps - except the Knox apps - still working as they should on rooted stock roms (s-apps, cam, calendar,..)?
[GOING BACK TO DEFAULT FACTORY STATUS]
Regarding the software only:
can you go back to 100% factory status (unrooted, stock etc) with a "Knox Warranty Void 0x1?
- Yes, according to iPAQS4 you can go back with no malfunctions
Do you get the Knox warnings again?
No, according to iPAQS4
Are there any other app or system malfunctions?
- No
Is it true that OTA updates won't work anymore once you tripped your knox flag?
- No, according to iPAQS4 they still work
Is it possible to get official updates via Kies / USB cable still?
- Yes, according to iPAQS4
[FAILURES ROOTING, KNOX]
Regarding the Knox environment only, not self-caused rooting failures:
can there else go anything wrong that can't be undone like breaking important hardware?
or is there a higher chance to brick your device with Knox than without?
is an intact eFuse required by some other hardware (NFC, etc)?
Are there any other known problems/downsides?
Here is an interesting article about all myths & truths about Knox. It's very informative and also answers a few of my questions: http://androidforums.com/boost-mobi...t/807188-guide-q-myths-truths-about-knox.html

Honky-Tonk said:
Hey guys,
I've read lots of articles about Knox and the whole eFuse thing but the more I read the more unsure I get about rooting my S4 mini. Because of this and because I think you don't get any S4s without "activated" Knox Bootloader anymore I thought it would be helpful for all S4 mini owners (and maybe all Knox device owners in general) to list all downsides and also rumors about "blowing the eFuse" to hopefully take away some of the fears.
I think it's already clear that you can loose your warranty if you got a 0x1 flag. But I'd rather like to get a list of all the irreversivble consequences with your device itself when rooting etc:
Can you go back to stock Rom (un-rooted) with a "Knox Warranty Void 0x1"? And with which problems do you have to deal (software warnings, malfunctions...)?
Can you still get official Samsung updates via Kies or over unofficial channels?
Are there any known hardware or software malfunctions because of the broken eFuse?
Are there any other known problems/downsides?
@ all_experienced_owners: would you still recommend rooting a Knox device or breaking the eFuse?
Click to expand...
Click to collapse
If you flash stock ROM (XXUBML1 for example) via Odin, the System Status will turn back to Official but of course the Knox flag remains 0x1.
Kies will also recognize your phone.
I don't know whether Kies/OTA updates will work, I never used/saw them.
If you don't care about warranty I recommend rooting

ladislav.heller said:
If you flash stock ROM (XXUBML1 for example) via Odin, the System Status will turn back to Official but of course the Knox flag remains 0x1.
Kies will also recognize your phone.
I don't know whether Kies/OTA updates will work, I never used/saw them.
If you don't care about warranty I recommend rooting
Click to expand...
Click to collapse
According to other posts OTA updates won't work anymore, unfortunately. Does anyone else know if updates via Kies/ USB cable will still work?
Have there been any Knox warnings when going back to stock again? It always says to disable all Knox apps once you have rooted your phone but back on un-rooted stock this is not possible, I guess?! So I think you will get these warnings again, don't you?

[bump] edited and added some questions!

Honky-Tonk said:
According to other posts OTA updates won't work anymore, unfortunately. Does anyone else know if updates via Kies/ USB cable will still work?
Have there been any Knox warnings when going back to stock again? It always says to disable all Knox apps once you have rooted your phone but back on un-rooted stock this is not possible, I guess?! So I think you will get these warnings again, don't you?
Click to expand...
Click to collapse
Updates via Kies/ USB cable will still work.
Going back to stock is posible whitout extra knox warnings. Knox will behave as before.

iPAQS4 said:
Updates via Kies/ USB cable will still work.
Going back to stock is posible whitout extra knox warnings. Knox will behave as before.
Click to expand...
Click to collapse
Sounds great, so you can always go back to original phone status (except your Bootloader and the OTA updates)? Just to make sure: you tripped Knox warranty void to 0x1, right?
What about rooted status (stock rom), did you notice any malfunctions with any apps, especially the s-apps?
Which rooting method did you use?
Thx

Honky-Tonk said:
I think it's already clear that you can loose your warranty if you got a 0x1 flag. But I'd rather like to get a list of all the irreversivble consequences with your device itself when rooting etc:
Click to expand...
Click to collapse
Not if you're in the EU. Under legislation, companies aren't allowed to void a warranty because of a software change etc (eg if a piece of hardware fails, they can't turn around and say you rooted your phone so you're not covered).
http://forum.xda-developers.com/showthread.php?t=1998801

You can use this method to root with out trip the Knox flag: http://forum.xda-developers.com/showthread.php?t=2565758
I've tried it on mine i9190 without any issue.

Honky-Tonk said:
Sounds great, so you can always go back to original phone status (except your Bootloader and the OTA updates)? Just to make sure: you tripped Knox warranty void to 0x1, right?
What about rooted status (stock rom), did you notice any malfunctions with any apps, especially the s-apps?
Which rooting method did you use?
Thx
Click to expand...
Click to collapse
When you go back to original phone status OTA updates will olso work and there are no malfunctions with any apps.

iPAQS4 said:
When you go back to original phone status OTA updates will olso work and there are no malfunctions with any apps.
Click to expand...
Click to collapse
really ??
i updated once via kies to the latest firmware and my gt-i9195 was useless, could not turn on wifi and it was lagging a lot and etc...
so i needed to flash it back to my previus firmware version...

nibb-1 said:
really ??
i updated once via kies to the latest firmware and my gt-i9195 was useless, could not turn on wifi and it was lagging a lot and etc...
so i needed to flash it back to my previus firmware version...
Click to expand...
Click to collapse
I unrooted my phone by flashing it with the original firmware with odin and than wipe data/ factory reset in recovery mode.
After that my phone had a ota from MJ7 to ML4.

If you recently bought the phone, I don't recommend rooting (although I rooted the phone the same day I bought it) If you really don't care about the warranty and the OTA updates, root your phone. I literally can do nothing without root.
As we heard today, our S4 Mini will update to 4.4.2 so I don't recommend rooting until it is out so you cqn get the OTA update.
Press THANKS if I helped!

Sky91 said:
Not if you're in the EU. Under legislation, companies aren't allowed to void a warranty because of a software change etc (eg if a piece of hardware fails, they can't turn around and say you rooted your phone so you're not covered).
http://forum.xda-developers.com/showthread.php?t=1998801
Click to expand...
Click to collapse
Good to know, thank's a lot

Sky91 said:
Not if you're in the EU. Under legislation, companies aren't allowed to void a warranty because of a software change etc (eg if a piece of hardware fails, they can't turn around and say you rooted your phone so you're not covered).
http://forum.xda-developers.com/showthread.php?t=1998801
Click to expand...
Click to collapse
Thx, yes that makes sense. I've also read a few articles about the warranty facts and always wondered why sellers can refuse warranty just because of the "wrong" software. I mean I never heard of anything like that with personal computers, notebooks etc. Would be very interesting, though if a mainboard manufacturer doesn't give warranty and claims that Windows, OSX, Linux etc destroyed it because you used it as an Admin . So actually I think, this regulation should apply world wide not only in the EU.
But we should keep in mind that warranty is not the same as guaranty which is probably really gone with a void 0x1 flag?! However it's great (at least for European people) to have a last hope in mind!
But the reason I wanted to list all downsides is to make sure that you can also root Knox system without any hesitation - to keep the fun for rooting so to say
iPAQS4 said:
I unrooted my phone by flashing it with the original firmware with odin and than wipe data/ factory reset in recovery mode.
After that my phone had a ota from MJ7 to ML4.
Click to expand...
Click to collapse
I just found this article about all myths & truths about Knox http://androidforums.com/boost-mobi...t/807188-guide-q-myths-truths-about-knox.html
It's very informative but I'm now confused again because the Article says that you can't use Knox apps anymore, once you tripped the flag:
"[...]If the KNOX warranty void line says 0x1 then you cannot use KNOX software as your device has been flagged as insecure.[...]"
Does this only concern additional Knox Apps not the default ones which produce the warning messages? Or are the Knox Apps just no installed anymore when going back on a 0x1 device or kind of deactivated by default? Could you check that?
RoyaLKurTx3 said:
If you recently bought the phone, I don't recommend rooting (although I rooted the phone the same day I bought it) If you really don't care about the warranty and the OTA updates, root your phone. I literally can do nothing without root.
As we heard today, our S4 Mini will update to 4.4.2 so I don't recommend rooting until it is out so you cqn get the OTA update.
Press THANKS if I helped!
Click to expand...
Click to collapse
Thx, I personally don't care about warranty. So this was really rather meant to only treat the functional downsides if there are any at all. I wanted to make sure to not have a trash phone with lots of battery drain or even worse: some irreversible hardware malfunctions after rooting. I'm also looking forward to KitKat but I doubt that the update will remove Knox again since even the army is already working together with Samsung now!
But according to iPAQS4 you can't do so much wrong with rooting (regarding the Knox environment of course)?!

Honky-Tonk said:
Thx, yes that makes sense. I've also read a few articles about the warranty facts and always wondered why sellers can refuse warranty just because of the "wrong" software. I mean I never heard of anything like that with personal computers, notebooks etc. Would be very interesting, though if a mainboard manufacturer doesn't give warranty and claims that Windows, OSX, Linux etc destroyed it because you used it as an Admin . So actually I think, this regulation should apply world wide not only in the EU.
But we should keep in mind that warranty is not the same as guaranty which is probably really gone with a void 0x1 flag?! However it's great (at least for European people) to have a last hope in mind!
But the reason I wanted to list all downsides is to make sure that you can also root Knox system without any hesitation - to keep the fun for rooting so to say
I just found this article about all myths & truths about Knox http://androidforums.com/boost-mobi...t/807188-guide-q-myths-truths-about-knox.html
It's very informative but I'm now confused again because the Article says that you can't use Knox apps anymore, once you tripped the flag:
"[...]If the KNOX warranty void line says 0x1 then you cannot use KNOX software as your device has been flagged as insecure.[...]"
Does this only concern additional Knox Apps not the default ones which produce the warning messages? Or are the Knox Apps just no installed anymore when going back on a 0x1 device or kind of deactivated by default? Could you check that?
Thx, I personally don't care about warranty. So this was really rather meant to only treat the functional downsides if there are any at all. I wanted to make sure to not have a trash phone with lots of battery drain or even worse: some irreversible hardware malfunctions after rooting. I'm also looking forward to KitKat but I doubt that the update will remove Knox again since even the army is already working together with Samsung now!
But according to iPAQS4 you can't do so much wrong with rooting (regarding the Knox environment of course)?!
Click to expand...
Click to collapse
I will flash a new ROM and I'll see if the KNOX stays like it was. But I'll do that later today or tomorrow.
Press THANKS if I helped!

Honky-Tonk said:
I just found this article about all myths & truths about Knox
It's very informative but I'm now confused again because the Article says that you can't use Knox apps anymore, once you tripped the flag:
"[...]If the KNOX warranty void line says 0x1 then you cannot use KNOX software as your device has been flagged as insecure.[...]"
Does this only concern additional Knox Apps not the default ones which produce the warning messages? Or are the Knox Apps just no installed anymore when going back on a 0x1 device or kind of deactivated by default? Could you check that?
Click to expand...
Click to collapse
According myths & truths about Knox
If the KNOX warranty void line says 0x1 then you cannot use KNOX software as your device has been flagged as insecure. By this I mean that if your workplace / company supports bring your own device to work for corporate emails etc and they use KNOX to keep security your device will not allow this. You are still able to use future Samsung firmware releases with the KNOX flag 0x1.

Confirmed. If you flash a new ROM TWICE, your KNOX counter will get 0x0. It will look like it is new.
Press THANKS if I helped!

RoyaLKurTx3 said:
Confirmed. If you flash a new ROM TWICE, your KNOX counter will get 0x0. It will look like it is new.
Press THANKS if I helped!
Click to expand...
Click to collapse
Is your phone knox previously tripped 0x1 and when you flash new rom twice become 0x0 ? thanks

rnbeez said:
Is your phone knox previously tripped 0x1 and when you flash new rom twice become 0x0 ? thanks
Click to expand...
Click to collapse
Yep.
Press THANKS if I helped!

RoyaLKurTx3 said:
Yep.
Press THANKS if I helped!
Click to expand...
Click to collapse
wiered it needs more researching .. mate knox flag is nearly impossible to reset and you are sayin flashing a stock rom twice fixes it !!

[Q] How to trick Samsung Co that I never rooted my Galaxy S4 GT19505??

Hi,
So I have this very much annoying problem which I have made a thread about it before and it's that I have always to choose either to use Touchwiz Home or Touchwiz easy home or knox, and even though I always choose Touchwiz home and make sure to check ALWAYS, it will come back asking me the same question when I hit home button.
The only solution to this problem was to reset the phone which helps, but the problem will appear again after few days or weeks.
I called Samsung Support and I spoke to a very nice person and I was told that the cause of this problem has to do with the kernel and some corrupted files there.
He said, my only solution is to change the motherboard, because if they put a new software, the problem will come back and the cost of the motherboard is 90% of the device value and since my phone was rooted before, I will have to pay the full price.
I told the guy that in status it shows now original and not custom, is there is a way that they can find out that my phone was once rooted before? He said yes, they will find it out because there is something that will show them history of the phone, something like that.
My question is, how can I clean up those files, how can I trick Samsung into thinking that my phone was never rooted before.
Thanks a lot guys in advance

clouds73 said:
Hi,
So I have this very much annoying problem which I have made a thread about it before and it's that I have always to choose either to use Touchwiz Home or Touchwiz easy home or knox, and even though I always choose Touchwiz home and make sure to check ALWAYS, it will come back asking me the same question when I hit home button.
The only solution to this problem was to reset the phone which helps, but the problem will appear again after few days or weeks.
I called Samsung Support and I spoke to a very nice person and I was told that the cause of this problem has to do with the kernel and some corrupted files there.
He said, my only solution is to change the motherboard, because if they put a new software, the problem will come back and the cost of the motherboard is 90% of the device value and since my phone was rooted before, I will have to pay the full price.
I told the guy that in status it shows now original and not custom, is there is a way that they can find out that my phone was once rooted before? He said yes, they will find it out because there is something that will show them history of the phone, something like that.
My question is, how can I clean up those files, how can I trick Samsung into thinking that my phone was never rooted before.
Thanks a lot guys in advance
Click to expand...
Click to collapse
just clear ur binary using triangle away(by chainfire)
if u have Knox,well,bad luck,there is not a way yet to reset it..
To check Knox,go to download mode,there should be something like Knox warranty there...
Or,if u ever installed samsung's 4.3 update u will have Knox..
if u have Knox and its tripped,install a custom rom and enjoy.
btw,be confident in front of Samsung care executives,they will most likely try to convince that u did mess up and u will have to pay.they did this to me,but at end they had to take my phone under full warranty...
Sent from my GT-I9500

anu.cool said:
just clear ur binary using triangle away(by chainfire)
if u have Knox,well,bad luck,there is not a way yet to reset it..
To check Knox,go to download mode,there should be something like Knox warranty there...
Or,if u ever installed samsung's 4.3 update u will have Knox..
if u have Knox and its tripped,install a custom rom and enjoy.
btw,be confident in front of Samsung care executives,they will most likely try to convince that u did mess up and u will have to pay.they did this to me,but at end they had to take my phone under full warranty...
Sent from my GT-I9500
Click to expand...
Click to collapse
Thanks man.
Actually just few minutes ago, I found a thread about Triangle away and I did reset that counter. It shows now original.
I'm heading to Samsung services and see what crap they will pull on me now!! hehe
cheers

It all depends if the technician cares or not.In other threads, they say that Samsung use a special cable to reset knox.

theunderling said:
It all depends if the technician cares or not.In other threads, they say that Samsung use a special cable to reset knox.
Click to expand...
Click to collapse
Talking about knox, I really don't know if it's official or not!!
Can you tell from the photo attached?

Knox warranty void: 0x1
So it is tripped and the warranty is void
Gesendet von meinem GT-I9505 mit Tapatalk

clouds73 said:
Talking about knox, I really don't know if it's official or not!!
Can you tell from the photo attached?
Click to expand...
Click to collapse
You already void your warranty .... It shows Knox warranty Void 0x1 and you might end up paying them for repair. But if your country is part of EU .. then no need to worry about Knox crap.

It all comes down to Samsung warranty policy and your countrys consumer laws; and if Samsung cares about it.
Youll soon find out lol.

how about if I downgrade to 4.2.2? There was no knox back then.
Is it possible?

A downgrade is not possible afaik
Gesendet von meinem GT-I9505 mit Tapatalk

[Q] General inquiry about KNOX and FW types

Hello all,
I searched the forums round and round, and couldn't find my answers so I hope you will be able to help me out.
i'm looking for a new phone and decided I want to go with the S5. that was before i learned about KNOX and it's wonderful ways.
i'm a heavy modder, who will most definitely use a custom recovery and ROM/kernel.
my questions are:
1. would it be possible to flash a custom recovery / rom / kernel / modem despite KNOX being preset?
2. other then getting this 0x1 and voiding my official warranty, are there any other result to this? will something not work?
3. assuming I get an unlocked international phone, is there any need to mess/change my FW? or is that just part of guides for rooting without tripping KNOX ?
Basically, I want to be sure that I could do whatever I want to the phone without getting stuck or turning it unusable because of KNOX. my current phone is a Nexus 4 and it has been heaven. I want to preserve this feeling
thanks for the help guys, appreciate it!

Did you tried Towelroot method for rooting your device? I heard that doesn't trigger knox..

I would imagine my rooting the phone is the least of my worries.
as far as I know - and this is one of my questions - flashing a custom recovery and or rom will 100% trip KNOX.
not that I care, I just need to know if this is true..and my other questions as well
thanks!

A brief answer
If you - as you say "i'm a heavy modder" Samsung phones are not for you

I've heard tales of people having issues flashing modems when knox is triggered. I have not checked that out for myself Joe have I searched any further into the matter.
I plan on breaking knox soon though because screw knox.
Sent from my SM-G900F using Tapatalk

chainbr3ak said:
A brief answer
If you - as you say "i'm a heavy modder" Samsung phones are not for you
Click to expand...
Click to collapse
This answer really worries me to be honest.
could you elaborate?
I don't really care about KNOX, and as long as I can mod away and jump back and forth between modems/roms/kernels - I don't care for the warranty.
If indeed there is truth in the matter, and modem flashing will become a problem if KNOX is tripped, then this would be a deal breaker for me on this phone.
anyone care to add more info here?

Amornik said:
This answer really worries me to be honest.
could you elaborate?
I don't really care about KNOX, and as long as I can mod away and jump back and forth between modems/roms/kernels - I don't care for the warranty.
If indeed there is truth in the matter, and modem flashing will become a problem if KNOX is tripped, then this would be a deal breaker for me on this phone.
anyone care to add more info here?
Click to expand...
Click to collapse
You can, but you will always have problems like network, connection,calls, bugs and so on
Samsung devices do not provide the old pleasure as previously
Knox killed freedom of developers and people who like customizations

I would really appreciate an answer from someone who knows for sure.
does tripping KNOX disables the option to upgrade/downgrade the modem?

Amornik said:
I would really appreciate an answer from someone who knows for sure.
does tripping KNOX disables the option to upgrade/downgrade the modem?
Click to expand...
Click to collapse
No, KNOX tripping is only at the moment a warranty void solution for samsung. its like the flash count flags.
basically if you trip knox. you're already in it. you do what you want

Amornik said:
I would really appreciate an answer from someone who knows for sure.
does tripping KNOX disables the option to upgrade/downgrade the modem?
Click to expand...
Click to collapse
I bought my phone with ANCE firmware and the KNOX was tripped in the first hour by CF-AutoRoot. Now I'm on ANG2, flashed with Odin and the modem is updated correctly.

Dark_Avenger said:
I bought my phone with ANCE firmware and the KNOX was tripped in the first hour by CF-AutoRoot. Now I'm on ANG2, flashed with Odin and the modem is updated correctly.
Click to expand...
Click to collapse
Now i'm a bit confused when you say you upgrade the FW, you mean the modem baseband, right ?

Amornik said:
Now i'm a bit confused when you say you upgrade the FW, you mean the modem baseband, right ?
Click to expand...
Click to collapse
Exactly, but with full stock image flush (including bootloader). The full stock tar.md5 form sammobile includes the modem/bootloader/rom. I think that the important thing is to have a modem which is compatible with the bootloader (same version). Didn't try to mix different bootloader/modem(baseband) versions.

Tripping KNOX will only disable the feature which allows you to store some data on a encrypted part of the device (Mostly comercial use) when KNOX is tripped any data stored on the 'special' partition is destroyed.
So there are only 2 things that will be affected, your warranty (Not a problem in Europe) and the special partition that I explained earlier.
Sent from my SM-G906S using XDA Premium 4 mobile app

Thanks guys, excellent replies !
So...I did it !
I went and bought a brand new S5, and tripped KNOX within the hour. Man, did it feel sooo good !
custom recovery up, rom up, here we go!

Just upgraded from Samsung Galaxy S4. Can you reverse the root of this device?

Hi, I love this phone, but root has spoiled me. There are so many things missing from my device that require root, the most important of all, my precious adblocker :crying:
I know about proxy ad blocking but that doesn't work very well..
My question is, if I do root my phone, will I be able to unroot it and make it look like it was never rooted in case I need to return it while its still in warranty? I was able to do that with my Galaxy S4 by resetting some counters and flashing stock ROM, warranty guys didn't find out and I got my phone replaced. I'm not sure this will be the case with S7 Edge though, maybe Samsung found out ways to make this harder, I searched through google and I found no answers to this question.

re: un-rooting
KoKauH said:
Hi, I love this phone, but root has spoiled me. There are so many things missing from my device that require root, the most important of all, my precious adblocker :crying:
I know about proxy ad blocking but that doesn't work very well..
My question is, if I do root my phone, will I be able to unroot it and make it look like it was never rooted in case I need to return it while its still in warranty? I was able to do that with my Galaxy S4 by resetting some counters and flashing stock ROM, warranty guys didn't find out and I got my phone replaced. I'm not sure this will be the case with S7 Edge though, maybe Samsung found out ways to make this harder, I searched through google and I found no answers to this question.
Click to expand...
Click to collapse
After rooting if you want to unroot all you do is go
into your app drawer and uninstall the supersu app
and reboot the phone and you will be unrooted.
Don't worry about warranty, they don't even check
for root.
Good luck,
Have a great day!

Misterjunky said:
After rooting if you want to unroot all you do is
using a file manager or explorer go into your
app drawer and uninstall the supersu app and
reboot the phone and you will be unrooted.
Don't worry about warranty, they don't even check
for root.
Good luck,
Have a great day!
Click to expand...
Click to collapse
That differs from country to country.
Sent from my SM-G935FD using Tapatalk

Misterjunky said:
After rooting if you want to unroot all you do is
using a file manager or explorer go into your
app drawer and uninstall the supersu app and
reboot the phone and you will be unrooted.
Don't worry about warranty, they don't even check
for root.
Good luck,
Have a great day!
Click to expand...
Click to collapse
Hmm, I'm not sure I want to risk it, I remember on my S4 there were some warnings while the phone boots - https://imgur.com/3Eoedfg , which had to be removed before I return it since all they had to do to check if the device is rooted is turning on the phone. Will I be able to do the same thing with S7 Edge?

when u root u trigger the knox counter, and there's no way to return it to 0
technically, with a knox counter 0x1 you already lose ur warranty, but not all countries look for that thing, so check how warranty works in your country

QBerto said:
when u root u trigger the knox counter, and there's no way to return it to 0
technically, with a knox counter 0x1 you already lose ur warranty, but not all countries look for that thing, so check how warranty works in your country
Click to expand...
Click to collapse
Thanks for your answer, I'm not sure where to check for how warranties work in my country. When I search in google all I get is info on what Knox warranty void means. I live in London UK, and this is where I replaced my phone that was 0x1 on its KNOX counter which gives me a little hope that they do not check this.

KoKauH said:
Thanks for your answer, I'm not sure where to check for how warranties work in my country. When I search in google all I get is info on what Knox warranty void means. I live in London UK, and this is where I replaced my phone that was 0x1 on its KNOX counter which gives me a little hope that they do not check this.
Click to expand...
Click to collapse
Don't believe me because I'm not totally sure, but I remember a thread here a while ago (maybe a month after S7 came out) where this knox thing was discussed, and I'm pretty sure an user from UK said that in fact samsung uk doesn't check knox warranty, maybe looking for that thread helps you, the thread was somthing about rooting or knox warranty

QBerto said:
Don't believe me because I'm not totally sure, but I remember a thread here a while ago (maybe a month after S7 came out) where this knox thing was discussed, and I'm pretty sure an user from UK said that in fact samsung uk doesn't check knox warranty, maybe looking for that thread helps you, the thread was somthing about rooting or knox warranty
Click to expand...
Click to collapse
Thanks for your help, I will look for this thread but even if they check for it, I might end up rooting my phone soon anyway. I didn't believe life with stock could be that hard