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  1. Thread Author  Thread Author    #1  

    Default Solution: How to PERMANENTLY Remove Knox


    Root access with a Samsung Galaxy S3 (T-mobile) on android 4.3 can prove to be a pain, especially if Samsung's Knox app rears it's head.

    It has been a while since I last rooted a phone (HTC Incredible). I have had my S3 for over a year now, but grew tired from the battery drain and the many many apps running in the background that I just could not fully remove. My phone screamed, "Root Me!"

    So to the web I took myself, and thus my struggle with Knox began.

    With all the options out there I wanted to quickest and easiest route for me. Odin showed me the way. Honai of Android has a really great walk-through of how to root using Odin and Cf-Auto-root. How to Root Galaxy S3 (T-Mobile) SGH-T999 on Android 4.3 Jelly Bean Firmware - Honai of Android

    Followed it to a T and ended up running into the issue with SuperSU not wanting to run and crashing of sorts. Even though the one on the Play Store is updated it wasnt providing any answers for me, so i followed the "How to fix" instructions on the bottom and downloaded the latest APK of SUperSU Download file SuperSU-v1.93.apk and copied the APK into a folder on my SD card.
    Using "My Files" in app drawer I located the APK and installed it.This updated the binary and allowed me to block Knox from interfering . . . at least for the time.

    While trying to install other apps that require root I ran into the issue with Knox still not wanting to play nice with SuperSU and it eventually went back to an epic battle where I try not to turn a Samsung product into a hockey puck


    Scouring the internet and XDA forums I wasnt able to locate any information on how to permanently and completely disable and remove Knox.
    I did stumble on Imran Aftab's posting over on androidcentral on how to Disable/Uninstall Knox How to Disable/Uninstall Knox on your Samsung Galaxy Phones and Tablet

    I got a bit peeved when I found out the dirty trick Samsung was pulling with Knox (wont be buying another Samsung phone).
    Aftab had posted 3 different ways to accomplish this:

    one without root access (doesnt really uninstall/remove),

    For those already with Root: Eplorer or Titanium backup (couldnt get either to play nice, maybe try the paid version if you already have it)

    and for the tech savvy: disabling using Android Terminal Emulator ----> Keep this in mind, it is a life saver for a number of reasons.

    The listed instructions on what command to input is a bit off, most likely due to html formatting.

    I installed Android Terminal Emulator from the Play store - granted it SuperSU access - and proceeded to type the following command(s):

    su [enter]
    pm disable com.sec.knox.seandroid

    *NOTE - the above to lines require you to go to a new line after typing "su", the [enter] is only a reminder, DO NOT type [enter] after su

    This disabled KNOX for me - but that wasnt good enough for me - I was out for blood at this point.

    I brought in the heavy guns ^_^

    Ultimate deletion from phone, backups, and any other little hiding hold Samsung created for this monstrosity.

    "Nobloat Free" took to the android sky like an F-16 with laser guided missiles. After giving it permission I scanned the system for all amount of bloated evil and realized it worse than I thought, like Left 4 Dead, but more devious.

    I found every file associated with running and storing the KNOX, selected and knoxed it right out of my phone - no backup and delete.

    YaY!!!!!!!!!!!!!!!!!!!!! Death to forced apps......

    *Note if you want to keep KNOX in case at somepoint in the future the void warranty thing can be reset - ensure you back it up before deletion.


    End result = a happier me and a much faster and smoother running phone

    This worked for me, but might not work for the rest of you - but best of luck, some variant is bound to work out for you.

    Thanked by:
    SscoootzZ likes this.
  2. #2  
    Golfdriver97's Avatar

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    Default Re: Solution: How to PERMANENTLY Remove Knox

    Thanks for sharing.

    For anyone else reading, this method looks like it should work.

    Be Advised: This looks like it may potentially be messing with even the bootloader. Caution cannot be over-stressed here.

    Phone Timeline
    'If we could change ourselves, the tendencies in the world would also change.' - Mahatma Gandhi
    Community Guidelines and also here
    Thanked by:
    VDub2174 likes this.
  3. #3  
    UJ95x's Avatar

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    Slim Kat 4.4.4

    Default Re: Solution: How to PERMANENTLY Remove Knox

    Definitely seems legit. I'm luckily Knox free since I rooted prior to 4.3, but this would be extremely helpful for users with that dreaded "security" program.
    Thanks for sharing
    Like mentioned above, do this with extreme caution. Follow the instructions to the T and you shouldn't have any issues.

    Sent from my Galaxy S4 running SlimKat 4.4.2
    "We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology." - Carl Sagan
    VDub2174 and Golfdriver97 like this.
  4. #4  

    Default Re: Solution: How to PERMANENTLY Remove Knox

    i dont have knox in my aplication manager when i look by all.
    is it hidden ore just not there?
  5. #5  
    UJ95x's Avatar

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    Default Re: Solution: How to PERMANENTLY Remove Knox

    Quote Originally Posted by saab61 View Post
    i dont have knox in my aplication manager when i look by all.
    is it hidden ore just not there?
    If you're not on 4.3 or later, then you don't have it

    Sent from my Galaxy S4 running SlimKat 4.4.2
    "We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology." - Carl Sagan
  6. #6  

    Default Re: Solution: How to PERMANENTLY Remove Knox

    i download cf root in my s4 kitkat version, but i dont know still work in this process, mybe they updated the knox version in kitkat
  7. #7  

    Default Re: Solution: How to PERMANENTLY Remove Knox

    Hi matey,

    Thanks for the instructions.

    Am having some trouble with it am afraid.

    When I run the commands in the Terminal Emulator I keep getting "retrying in 1 sec" and then "failing to connect to dumpstate"

    No Bloat Free doesn't work either as it says "denied root access" even though i've re-rooted the phone

    Super SU (updated) is unable to disable Knox (attempts but fails)

    Help! Any advice?

  8. #8  

    Default Re: Solution: How to PERMANENTLY Remove Knox

    I want to tell my story of how I got rid of the dreaded knox and what problems I encountered, because it may help someone else. I am a total newbie to rooting and really did it out of neccessity because I was fed up with intrusive tracking and wanted to use something called Orbot which is a tor network, and consequently I needed root access for it to work properly.

    After checking out various sites I eventually got round to rooting my Galaxy Note 2 N7100, Android 4.42, using Odin 3.09 and a CF-Auto-Root-t03g-t03gxx-gtn7100.zip.

    As soon as I had rooted the phone I got the dreaded 'Unortunately SuperSu has stopped working' message. I simply downloaded the latest version of SuperSu off of Google Play and then was asked by the program if I wanted to disable Knox which I did and hey presto I got Root Access. Unfortunately my problems didn't end there though.

    I shut down the phone at work and later turned it on again and to my horror I got the 'SuperSu has stopped working' message again. I tried everything (ES Explorer, Terminal Emulator, NoBloat Free, among others) but there was no way that Knox was going to shift. I couldn't delete it with any of the programs simply because I needed root access for those programs to work. So I was stuck between a rooted phone (yes the phone was still rooted according to root checker) and having no access to that root because of Knox.

    Luckily for me I had backed up and the only option I had was to do a factory reset (SuperSu was still there upon factory reset, but not working - I didn't expect that one!) but everything else was gone and back to factory default and I didn't have root access on my phone according to Root Checker...which is only what you would expect, really, after a factory reset. I was determined to get rid of Knox at all costs or brick my phone trying! Either way...I was angry at Samsung for forcing that upon me when I didn't ask for it or want it.

    In the end I had to re-root it again and to my horror I could not get the phone to root. After several times trying to re-root or flashing as I believe its called, a flash of inspiration sent me back to the Settings > More > Security and unticked the Unknown Sources box and made sure the Verify apps box was unticked. I also went into Settings > More > About device: tapped the 'Build Number' seven times (I think) to put it into developer mode. Then I went back to Settings > More > Developer options and made sure the 'USB debugging was ticked before trying to root the phone again (tab). Unfortunately that didn't give root access at that particular point in time, but another flash of inspiration sent me to the Google play site to download SuperSu again, and to my complete surprise, it updated and finally, I was able to disable that exasperating, insideous, virus-like peice of trash disguised as a security program called Knox.

    This time though, I wasn't going to rest on my laurels, I immediately re-downloaded 'NoBloat free' from the Google Play store, and with root access now working I was able to get rid of that pesky Knox once and for all. The interesting thing is that the Knox program itself, wasn't even installed on the phone...just the shortcut to download it and install it. So what on earth was it doing being listed as an administrator at the O.S. level when I don't even have the full program? ARRRRRRRRRRRRRRGH! So the moral of the very long story is:

    After rooting...make sure you follow through with a program to delete or uninstall knox...otherwise on restart it will rear its ugly head and give you far more headaches...and there is nothing worse than losing all your new settings again and having to start from scratch like me. Oh and do make sure you check that it is gone by going to Settings > More > Security > Device Administrators, to check it is finally gone. And good riddance to idle rubbish!

    I'm glad I did it and it was a great learning experience and am now the happy owner of a rooted phone which is the best thing I have ever done...despite the initial headaches.

  9. #9  
    TomD's Avatar

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    Default Re: Solution: How to PERMANENTLY Remove Knox

    It appears that Samsung is abandoning KNOX. With all the heat they are taking from users who want to flash ROMS and Root, that seems to be translating into lost sales, combined with Google's decision to do enterprise security themselves.

    One thing that Android desperately needs is a way to backup Apps and App data without having to Root.

    Here's a Forbes article that lays this out:
    Samsung Nixes Knox: The Android Security Saga Continues - Forbes

    I'm amazed that this has not hit the Android blogs yet.
  10. #10  
    TomD's Avatar

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    Default Re: Solution: How to PERMANENTLY Remove Knox

    Can anyone tell me if this is an official way to remove KNOX, or am I misunderstanding this:

    How do I Remove or Uninstall KNOX™ Personal on my Samsung Galaxy Note® 3? : T-Mobile Cell Phones | Samsung
  11. #11  

    Default Re: Solution: How to PERMANENTLY Remove Knox

    OMG! You made my day! I was fighting with KNOX all day, I thought my Galaxy Tab 4 10.1 was jammed or could never be used again because of that nasty KNOX thing! Then... came this thread! Thank you so much!
  12. #12  

    Angry Re: Solution: How to PERMANENTLY Remove Knox

    My SM-T900 (tab pro 12.2 wifi) came with Kitkat AND knox. I hate Samsung. Grr! Anyway rooted and disabled via pm ... hope this is enough.
  13. #13  

    Default Re: Solution: How to PERMANENTLY Remove Knox

    I just picked up an SG SIII T999L and the device is stock not rooted. I had not even activated the device or installed a SIM.
    I get this Security warning: "An application attempted to access system on your device without authorization. This attempt has been blocked. Updating your security policy may solve this problem. Deleting applications obtained from unauthorized sources may improve security"
    Offers a box to cancel for 30 days
    Below that are option to: Cancel - Update- View apps
    Clear it and it comes back immediately. It gives me no reference to what application is causing this.
    Update and it just shows Latests security policy has already been applied.
    View apps and it goes to Down loaded and 1 app is present
    GALAXY Apps
    Long pressing the notification brings up the Knox Notification Manager with no ability to turn it off.
    Looking at the description to disable Knox without Root access (Link How to Disable/Uninstall Knox on your Samsung Galaxy Phones and Tablet above) tells me to open the app and then go to settings? When I open the app it asks me to install it? If it is not installed how can it be blocking apps?
    What to do? Install the app and then install it?
    I don't want to install making matters worse so I thought I would ask before attempting that..

    This all happens with a SIM installed and the device functioning as well. If I check the box it will cease notifications for 30 days, but I would just like to get rid of this if I can.

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