The are various instances of exploits bringing out the security vulnerabilities of Samsung’s flagship Galaxy devices. To arouse the trust of business class customers, Samsung also launched an ad campaign. However, it was with the launch of the Galaxy S4 that the company introduced a dedicated security service trademarked as Samsung KNOX. Previously, the service was only available for people in enterprise and in government institutions. Later during IFA event in Berlin, Samsung showcased some new devices like the Note 3, Note 10.1 2014 Edition, Galaxy Gear and also revealed the commercial availability of a its Knox mobile security system that helps better protect device data against unauthorized use.
What is Samsung KNOX?
In this way, if you have Knox installed on your device which you use as a personal and as a workplace phone both, Knox lets you store enterprise applications (corporate email, contacts, calendar, etc.) securely using an Exchange ActiveSync Server. The service is capable of separating personal and work data and thus it makes it possible for both types of data to coexist on a Knox-enabled device. You just have to press an icon to switch from personal to business mode. Here’s an official video that reveals what KNOX does:
Actually, Samsung came with KNOX when it realized that security-lovers and corporate class tended to abstain from its smartphones due to security vulnerabilities. By integrating KNOX in the TouchWiz UX, Samsung provided a second version of a smartphone as KNOX mode that is protected with password and restricts unauthorized access. KNOX mode includes apps like Camera, Gallery, Downloads, Email, S Planner, My files, Phone, Contacts and S Browser by default. Besides these, there are about 75 KNOX-apps that you can download additionally.
Why Disable Samsung KNOX?
There’s no doubt that Samsung Knox service is really a good security solution for those who got a financial and business reason to protect their data, but there are still many others who might not like to have it on their device. If you are not a fan of the kind of security Knox provides and love to root your device and install custom ROMs on it without caring about the security warnings, we have come with some tips to disable Samsung Knox security shield on your device. Knox might also be responsible for FC (force close) error with some of your root perm apps, and so this is another sound reason to disable it.
Unable to Get Root Access Due to KNOX?
If you have KNOX on your Galaxy device and you have rooted it, you’ll see a verification message that pops up every time SuperSU is called for action by some apps on your device. The message runs like this:
“SuperSU tried to access system in your device without authorization. This action was blocked.”
“An application attempted to access system on your device without authorization.”
“Unauthorized access to a secured area has been blocked.”
You can get rid of this annoying thing easily by disabling Knox service and its agent apps. Remember, once KNOX is aware of SuperUser on your phone, it’ll block its functioning and you might not be able to use any root app. In case you are unable to get root access (after rooting your device) because KNOX prevents SuperSU in doing so, do this:
- Download the latest SuperSU zip package: UPDATE-SuperSU-vx.xx.zip
- Extract the zip and open the folder.
- Go the folder named “common” and copy the Superuser.apk to your phone.
- Install the APK manually (do not forget to tick Unknown Sources option under Security settings of your device).
- Now launch the SuperSU app on your phone and it will ask you whether or not you want to disable KNOX: “Samsung Knox has been detected. This might limit root capabilities and cause annoying popups. Try to disable KNOX.”
- Select OK. It will then tell you that KNOX has been successfully disabled.
You should now be able to enjoy root access on your Samsung Galaxy device. If you want to remove KNOX from the device, use the method given below. If the above method does not work for you, you phone might not be rooted properly. Verify the root with Root Checker app.
List of Galaxy Devices that Feature KNOX:
Our tutorial on removing/ disabling/ uninstalling KNOX might be used to get rid of KNOX on all Samsung devices with Android 4.2 or above. The following Galaxy phones and tablets support Samsung KNOX:
- Galaxy Note 3 (LTE, Verizon, AT&T, T-Mobile, Sprint, Rogers, Bell and other variants)
- Galaxy Mega 6.3
- Galaxy S4 (all variants)
- Galaxy S4 Mini
- Galaxy S3 (all variants)
- Galaxy Note 2 (all variants)
- Galaxy Note 10.1 2014 Edition
- Galaxy Round
Removing/Uninstalling KNOX Without Root:
Samsung KNOX can be removed from a Galaxy device without root access. Just follow the steps given below:
- Open the app drawer on your phone or tablet device.
- Then tap on Samsung> Samsung KNOX.
- When you enter the KNOX Homescreen, tap the Menu button
- From the available options, select KNOX Settings.
- Then select touch About KNOX> Uninstall.
- While uninstalling KNOX, you’ll be asked if you want to backup your KNOX data.
- To back up your KNOX data, select Backup now, else touch OK button. Make your choice.
- Now enter your KNOX password and then select Continue> Next.
- All backed up data that does not include your email and app data will be save as Zip to My Files> All> Knox.
- KNOX will then be uninstalled from your Samsung Galaxy device.
Done and enjoy! Now your phone or tablet is KNOX-free.