Verizon & AT&T Samsung Note 5: KNOX/Root Of Trust; Unable to Root

charlieb620

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Jan 6, 2009
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Article can be found here: http://www.idigitaltimes.com/samsun...d-features-att-and-verizon-models-wont-468357

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Samsung’s Galaxy Note 5 and Galaxy S6 Edge+ flagships will officially hit stores Friday. But if you are a Verizon or AT&T subscriber who is used to rooting smartphones, beware. Rooting these carrier models of the Galaxy Note 5 and Galaxy S6 Edge+ will shut down your phone completely.

The Verizon and AT&T models have a carrier specific mechanism, which is apart of the Samsung Knox Security Suite, Samsung Knox director of business development Ram Motipally detailed to iDigitalTimes at a recent briefing in New York prior to the Galaxy Note 5 and S6 Edge+ launch. “In most of the U.S. devices, if you root the device the device won’t even boot up; if it’s AT&T or Verizon,” he said.

Root prevention has been an on-going aspect of Samsung Knox since it’s inception. In the early days of Knox, rooting a Samsung smartphone could trip a key on a device, which would void the warranty. Root prevention through Knox has been developed to where the rooting Samsung Galaxy S6 or Galaxy S6 Edge handsets will disable the Samsung Pay mobile payment feature. But now, if a Verizon and AT&T variant of the Galaxy Note 5 or Galaxy S6 Edge+ is rooted, users will see only a black screen with a message explaining the device cannot boot up because it has been rooted, Motipally explained.

Other Galaxy Note 5 or Galaxy S6 Edge+ handsets, such as T-Mobile, Sprint and unlocked variants do not include this feature. Rooting would simply disable Samsung Pay as it does on the Galaxy S6 or Galaxy S6 Edge. Root prevention is heavily tied to Samsung’s enterprise push, to get more devices like the Galaxy Note 5 and Galaxy S6 Edge+ in the hands of business users.

Samsung Knox was once a feature introduced to devices through software updates, but it now comes standard on all Samsung smartphones. The software is heavily ingrained within the Android framework and the kernel of Samsung’s devices, Samsung Business vice president, mobile product marketing, Eric McCarty explained at a business launch for the Galaxy Note 5 and Galaxy S6 Edge+ last Thursday.

In particular, Samsung Knox includes a Root of Trust, which dictates what tasks a device can execute with confidence. Some of the functions of a Root of Trust are detecting rootkits and recognizing unauthorized changes to a smartphone’s system or program. This especially speaks to the Verizon and AT&T models of the Galaxy Note 5 and Galaxy S6 Edge+ as Verizon and AT&T are especially adverse to customization of their devices.

The continued implementation of Knox onto Samsung devices has alleviated many concerns about safety in using Android in the enterprise space, Samsung vice president of marketing strategy and operations, Ed Abrams told iDigitalTimes in July. However, this focus on enterprise users could be a detriment to dedicated Android developers or Samsung enthusiasts who are not in love with the TouchWiz user interface.

Android-based smartphones have been popular, largely due to the open source nature of their software and user’ ability to customize devices through rooting. But with Google as one of Samsung's partners for its business sector, users could continue to see root prevention efforts in new and upcoming devices.
 

Mrbababo

Senior Member
Jun 20, 2014
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Singapore
Samsung needs to allow all apps in multi window without root, and android needs a full device backup procedure.
Sure you can let the play store put your apps back but it doesn't restore the data.

I may be able to live without root on the Note if it had those two things.
I'd really miss lmt and xposed though.
if you have tried MIUI they do have full system restore. dont get why google cannot put it in stock android.
 
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kaefers

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Nov 13, 2007
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I read that on idigitaltimes yesterday, but is that the 100% final word on AT&T and Verizon Note 5?
It seems to be the only article out there with this information - would there not be any (theoretical) way around it at all?
 

daftlush

Senior Member
Nov 12, 2009
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Thats jst silly, you should be boycotting big red and the att. seriously, tmobil is a phone junkies best friend. 3 upgrades a year with jump on demand and they couldnt care less if your bootloader is unlocked or knox has been tripped on sammy. all they care about is 1 2 3, turn on, screen is not cracked, no water damage. plus t mo has volte, wifi calling, and lowest prices. I was big red for almost a decade, from back when it was LA cellular or airtouch, cant remember. THen i gave up the best reception in america for great reception in my area and a company that doesnt try to screw me at every angle. love tmo so much i actually bought some stock in it. but that was also because i think leger is hilarious and i wanted to vote for him with my wallet.
 

DarkWolf747

Senior Member
Mar 13, 2013
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Samsung needs to allow all apps in multi window without root, and android needs a full device backup procedure.
Sure you can let the play store put your apps back but it doesn't restore the data.

I may be able to live without root on the Note if it had those two things.
I'd really miss lmt and xposed though.
I agree... I find it bizarre that iOS has proper backups, as did my old old blackberry (couldn't even tell anything had happened. Yeah it needed a PC connection but I'd be ok with that). The only thing I would add is being able to do things like toggle GPS without root - the fact that I have to go five clicks* to turn my location mode from battery saving to high accuracy and navigate back to my navigation app is insane.

* Long press the location quick toggle, mode, high accuracy, back, back.
 

daystrom

Senior Member
Feb 2, 2008
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Ohio
At least the international versions only casualty is Samsung Pay if rooted. I'll never ever buy another AT&T branded device again. Would love to switch to T-Mobile but their service isn't good in my area.
 

edufur

Senior Member
Sep 27, 2007
1,168
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Hillsboro
The simple solution to this is to switch carriers. And when retentions asks you why you are leaving, say "Because carrier X allows me to root without bricking the device." I think once they lose enough customers that way (and losing market share to other carriers), they might start rethinking it.
 

svengalis

Senior Member
Feb 6, 2011
285
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Columbia, SC
Thats jst silly, you should be boycotting big red and the att. seriously, tmobil is a phone junkies best friend. 3 upgrades a year with jump on demand and they couldnt care less if your bootloader is unlocked or knox has been tripped on sammy. all they care about is 1 2 3, turn on, screen is not cracked, no water damage. plus t mo has volte, wifi calling, and lowest prices. I was big red for almost a decade, from back when it was LA cellular or airtouch, cant remember. THen i gave up the best reception in america for great reception in my area and a company that doesnt try to screw me at every angle. love tmo so much i actually bought some stock in it. but that was also because i think leger is hilarious and i wanted to vote for him with my wallet.
The only problem is that t-mobile has terrible coverage outside of cities. My only option is to get the t-mobile version then throw a att sim card in there and hope I get good service.