N00b question about Knox, Root, Sim Unlock and 5.1.1 (DOJ7) - Galaxy S6 Q&A, Help & Troubleshooting

Hey guys, thanks in advance for your help.
I am not new to rooting, but I'm new to T-Mobile S6 G920T, so I had few questions.
Some info about the phone:
Knox status is 0 (not tripped)
SIM Locked to T-Mobile
Firmware: DOJC (g920tuvu3dojC)
I recently bought this phone refurbished, and I have hard time finding the answers I'm looking for in the forums (I've spent about 4+ Hrs in searching so far)
So my questions are:
1) Is there a "non-root" way to SIM unlock this phone? I tried using the "cable" method from unlockbase, but it looks like they can't implement the temp root method, and therefore it doesn't work
2) It doesn't look like there is currently a way to root the phone with this firmware without tripping KNOX, is this correct? Can I downgrade?
3) Is the bootloader of this phone unlocked? I see that there is an OEM Unlocking option, but some users are saying that this doesn't do anything on DOJC (The primary reason why I bought this model was the notion that T-Mobile has unlocked bootloader)?
4) What happens if I trip KNOX, it looks like I can still flash the original firmware, but the counter will still show 1+ instead of 0 - is this correct? Or rather - is there a fool-roof way to flash new firmware and reverting back to the old one with clean KNOX if needed?
Bonus Question) What is a good 6.0 Rom to flash in my case? Are there SIM Unlocked ones? What about CM13 - if I flash it, I lose TouchWiz along with some of the apps and possibly the FingerPrint scanner?
Thanks for your attention,
A.

hi
ad.4 Knox show +1 so You broke warranty - Im new on s6 (I will buy soon) so I don't look about it yet but I think You have to try find KNOX reset (De-Knoxer) or something like that.
Look on the threads about ROOT or Recovery - maybe into is the KNOX subject.
[EDIT]
Try it from THIS thread. Maybe works.
Sorry for my bad En.

No known way to revert Knox to 0, once it`s triped, there was a ping pong root available on 5.0.2, which didn`t trip knox, but 5.1.1 and later root methods always trip knox, and there is no successfull way of downgrading to 5.0.2 that I heard of.

Related

[Video Guide] How To Root Galaxy S4 I337 / I337m Easy & User Friendly

Hey folks. It's me again :victory: So I've got another super easy video guide on how to root your shiny new Samsung Galaxy S4 I337 or I337m.
This guide is using djrbliss's Motochopper tool. This tool has made it easier than ever to root a device! So BIG thanks goes out to him!
Links to everything can be found in the video description.
Enjoy
Here is a couple of more. I figure its better to keep them all in one place so people can decide which guide they want to use.
http://forum.xda-developers.com/showthread.php?t=2257039
http://forum.xda-developers.com/showthread.php?t=2257058
I think there might be a couple more out there but this should help people to answer any possible question about rooting that they could ever have.
If you have the AT&T OTA (MF3) for the SGH-I337 S4, the method in the OP does not work. Here is a method for rooting MF3:
http://forum.xda-developers.com/showthread.php?t=2387577
For Canadian MG1 Firmware, try CF Auto-Root download for the SGH-I337M:
http://forum.xda-developers.com/showthread.php?t=2293800
Just sold my Rogers S2 LTE because I upgraded to the S4. My quick question, if I ROOT and retain the original Samsung Recovery will I be able to still get and do official firmware upgrades? This is the only thing stopping me from going forward with rooting.
You can still get updates, but you will loose your root access with each update.
thanks: im now rooted and sim unlocked for free!
Slade8525 said:
thanks: im now rooted and sim unlocked for free!
Click to expand...
Click to collapse
Hey, how did you sim unlock it for free, do you mind sharing?
yeah sure!
similar method worked for my GS III; havent tested the GS IV with different sim just yet but GF's old GS III is working just fine for her sister in Canada (Bell i think). GF found it actually, and did it to hers 1st. ill know if it works when we leave for work in Montreal next week or if i bum a t-mobile cell from a friend.
http://forum.xda-developers.com/showthread.php?t=2282683
Stoneyguy said:
You can still get updates, but you will loose your root access with each update.
Click to expand...
Click to collapse
WRONG, I am unable to update my device, it says that my phone has been modified, and yes, I have rooted it with this video.
Whenever I try this method, when it goes to push the exploit, it says error multiple devices or something. when I only have the S4 plugged in. Followed step by step.
Dragosmp said:
WRONG, I am unable to update my device, it says that my phone has been modified, and yes, I have rooted it with this video.
Click to expand...
Click to collapse
My phone is rooted and still shows official in phone status. There is a post on how to regain that status while still maintaining your root.
Stoneyguy said:
My phone is rooted and still shows official in phone status. There is a post on how to regain that status while still maintaining your root.
Click to expand...
Click to collapse
Could you post a link to where it shows how to regain the status will maintaining the root?
rsarwar said:
Could you post a link to where it shows how to regain the status will maintaining the root?
Click to expand...
Click to collapse
The link has already been posted on the first page.
thanks worked great just rooted min in 5 min
Safe to root?
Excuse my ignorance, but on another thread it was suggested that in the absence of recovery and a backup image rooting might be premature. Is the general consensus now that it is safe to root? There seems to be some backup images around thought I don't know if they have been tested, and I haven't heard about recovery.
sblevine
Newbie here... couple of questions
I have the same concern as the member above... is it already possible to restore the phone if something goes bad? Is there instructions anywhere around this forum? where?
Also, once you root the phone you can proceed to download a ROM and install it... when a new ROM version is available and I download and install it, do I lose the root?
What is the best (if more than one is already available) for the ATT S4?
Thank you all and sorry for the "newbieness"....
Cheers:good:
speed2001 said:
I have the same concern as the member above... is it already possible to restore the phone if something goes bad? Is there instructions anywhere around this forum? where?
Also, once you root the phone you can proceed to download a ROM and install it... when a new ROM version is available and I download and install it, do I lose the root?
What is the best (if more than one is already available) for the ATT S4?
Thank you all and sorry for the "newbieness"....
Cheers:good:
Click to expand...
Click to collapse
No, rooting gives you certain superuser privileges. You can use Titanium Backup to freeze and restore bloatware, AdBlock to block advertisements, etc. Some phone tracking software and remote desktop control software requires root as well.
You cannot modify the basic operating system (ROM) until the bootloader is unlocked. You can overwrite the files, but that will brick your device since the bootloader checks signatures.
There is a bootloader exploit for the ATT S4 that will be released within the next week. The developer was waiting until the Verizon version of the S4 was available so more people would be able to use the exploit before it was patched.
Do not accept an OTA update for your device as that is how they will patch the bootloader exploit.
1. Root your device.
2. Carrier unlock your device.
3. Install custom ROM when bootloader is exploited later this week.
Relys said:
No, rooting gives you certain superuser privileges. You can use Titanium Backup to freeze and restore bloatware, AdBlock to block advertisements, etc. Some phone tracking software and remote desktop control software requires root as well.
You cannot modify the basic operating system (ROM) until the bootloader is unlocked. You can overwrite the files, but that will brick your device since the bootloader checks signatures.
There is a bootloader exploit for the ATT S4 that will be released within the next week. The developer was waiting until the Verizon version of the S4 was available so more people would be able to use the exploit before it was patched.
Do not accept an OTA update for your device as that is how they will patch the bootloader exploit.
1. Root your device.
2. Carrier unlock your device.
3. Install custom ROM when bootloader is exploited later this week.
Click to expand...
Click to collapse
Cool, thanks for the reply. I was under the impression that the bootloader was already exploited. Pure BS those protections that always end up broken like the IOS ones. What I would like is to have the S4 as factory released and load a good ROM without any problems and no bloatware. If not for the warranty I would buy an unlocked phone elsewhere.
Well, let's wait for the exploit next week. I don't want to brick my phone and not able to restore it. I will keep checking back.
Cheers and thanks again
Speed
Relys said:
No, rooting gives you certain superuser privileges. You can use Titanium Backup to freeze and restore bloatware, AdBlock to block advertisements, etc. Some phone tracking software and remote desktop control software requires root as well.
You cannot modify the basic operating system (ROM) until the bootloader is unlocked. You can overwrite the files, but that will brick your device since the bootloader checks signatures.
There is a bootloader exploit for the ATT S4 that will be released within the next week. The developer was waiting until the Verizon version of the S4 was available so more people would be able to use the exploit before it was patched.
Do not accept an OTA update for your device as that is how they will patch the bootloader exploit.
1. Root your device.
2. Carrier unlock your device.
3. Install custom ROM when bootloader is exploited later this week.
Click to expand...
Click to collapse
Regarding the bold above, I am honestly not that interested in the Custom ROMS right now, only rooting and with this method it does not install any custom recovery, right? As well, if I root via this method will I be able to still do the OTA updates since Samsung recovery is untouched? I know and understand that I will likely loose root, but I can always re-root, right?
I am itching to root and this is the only thing stopping me as there seems to be much confusion about this.
BTW I am on Rogers (Canada) i337M if it makes a difference
rsarwar said:
Regarding the bold above, I am honestly not that interested in the Custom ROMS right now, only rooting and with this method it does not install any custom recovery, right? As well, if I root via this method will I be able to still do the OTA updates since Samsung recovery is untouched? I know and understand that I will likely loose root, but I can always re-root, right?
I am itching to root and this is the only thing stopping me as there seems to be much confusion about this.
BTW I am on Rogers (Canada) i337M if it makes a difference
Click to expand...
Click to collapse
I've been a bit confused as well despite reading hundreds of posts and watching referenced videos (I've also been hesitant to ask questions given the culture of this board). Here is what I hope is accurate, please correct where I am wrong:
We can root I337 now.
Doing a simple root now is reversible, ie, can be un-rooted.
The bootloader unlock is needed primarily for custom roms.
If one does not desire a custom rom, there is no reason to wait to root.
And, a few questions:
Does rooting wipe out apps, settings, and/or data?
Will an AT&T android system update remove the root?
If so, can we just root again?
Thank you for clarifications. I'm sure there are many that are not posting with some of these questions. I will be glad to put together a noobie's guide if I can get a handle on all of this. It is all out there somewhere, but very fragmented, and often one post is contradicted by another.
zekeblue said:
I've been a bit confused as well despite reading hundreds of posts and watching referenced videos (I've also been hesitant to ask questions given the culture of this board). Here is what I hope is accurate, please correct where I am wrong:
We can root I337 now.
Doing a simple root now is reversible, ie, can be un-rooted.
The bootloader unlock is needed primarily for custom roms.
If one does not desire a custom rom, there is no reason to wait to root.
And, a few questions:
Does rooting wipe out apps, settings, and/or data?
Will an AT&T android system update remove the root?
If so, can we just root again?
Thank you for clarifications. I'm sure there are many that are not posting with some of these questions. I will be glad to put together a noobie's guide if I can get a handle on all of this. It is all out there somewhere, but very fragmented, and often one post is contradicted by another.
Click to expand...
Click to collapse
Your assumptions are correct:
1. Yep.
2. Yes, you can delete busybox and su in your system directory to get your phone switch your phone from "Custom" to "Official" status. If you install SuperSu and remove Superuser you can have root while keeping "Official" status.
3. Correct.
4. If you **** up while messing around with root you can recover to stock ROM via Odin or Kies. There is no reason to wait for root.
To answer your questions.
1. No, nothing changes. You just enable superuser privileges.
2. Typically yes. Don't accept OTA's until your know they're safe.
3. It depends if they patch the exploit or not.

EE Galaxy S6

I have a few questions about this device, and although there may already be some answers out there, it's not immediately clear to me what they are. There are quite a lot of conflicting answers. My questions are:
Is the EE/International etc. Galaxy S6 bootloader locked?
If it is, can I unlock the bootloader in order to install TWRP and root the device?
What features do I lose if I trip Knox?
Will I still get OTA updates if I unlock bootloader and install TWRP?
Snake1616 said:
I have a few questions about this device, and although there may already be some answers out there, it's not immediately clear to me what they are. There are quite a lot of conflicting answers. My questions are:
Is the EE/International etc. Galaxy S6 bootloader locked?
If it is, can I unlock the bootloader in order to install TWRP and root the device?
What features do I lose if I trip Knox?
Will I still get OTA updates if I unlock bootloader and install TWRP?
Click to expand...
Click to collapse
1. Never heard of EE as a model indicator. If it's an international version, it will be carrier unlocked, bootloader unlocked, i don't believe so. Samsung doesn't seem to be very supportive in any way of custom fw/sw.
2. Root is dependent on the fw version, there are ways to root with and without tripping knox depending on your fw version
3. If you trip knox you lose your warranty and you lose Tap and pay or wireless pay or whatever you want to call it.
4. you'll still get OTA updates but flashing twrp will likely not allow you to install them as Stock recovery is needed to install the updates. You would likely lose root when installing updates aswell. the latest update 5.1.1 has a method for rooting without tripping knox however, by flashing a kernel. I believe if you flash twrp though, knox would be tripped.

[G955FD Exynos] Need Help with Re-locking Bootloader :foldedhands:

So I sold my s8+ g955fd seexynos to this guy for a really good price.
My s8+ was rooted with magisk and bootloader was unlocked.
But this guys wants it unrooted and wants the bootloader to be locked so that he can have the ota updates working. And if I fail to do so (which I am at the moment), I would have to return the money (which I dont want to).
I tried flashing stock rom (latest from Sammobile) from the scratch with Odin but still when I check with Intercept X app, it says bootloader unlocked. and I checked in developer options too, the oem unlock is greyed out and set to off and says "bootloader is already unlocked".
Could someone please guide me with working steps please? I am good with flashing and stuff.
I tried searching the s8+ forum but couldn't find anything helpful.
Need urgent help. :foldedhands:
Edit 1: now the OEM unlock is gone from developers options after flashing magisk again :scared:
Edit 2: After uninstalling magisk from magisk manager app
, phone went to bootloop. So I flashed stock rom "bl,ap,cp,csc" with odin again and the greyed out oem unlock is back with status "bootloader is already unlocked"
Any hint guys?
Just a hint would be enough!
Its a one way process from what I understand.
Anybody will want it locked because without it locked you cant use Knox or any of the payment apps that depend on Knox.
I could be wrong but this is what I feel.
RonChinoy said:
Its a one way process from what I understand.
Anybody will want it locked because without it locked you cant use Knox or any of the payment apps that depend on Knox.
I could be wrong but this is what I feel.
Click to expand...
Click to collapse
Already figured it out. I am sure that guy doesn't care about knox, but does care about ota updates

Real Clarification on Samsung KNOX

I have read a lot about Samsung KNOX and how it is supposed to work, but the more I read the less I know how KNOX is tripped.
I understand what KNOX is, I know how it works and I know the supposed "reasons" it exists.
I also do know, that KNOX has changed a couple of times in the past years, which is perhaps the reason I find to much conflicting information on this topic.
So, since the A51 is quite a new phone, I want to know, how KNOX is tripped on the Galaxy A51.
Is unlocking the bootloader already enough?
Can you unlock the bootloader but flashing anything will make it trip?
What exactly is allowed with the newest KNOX and at which point does it exactly trip?
Can you not modify anything anymore, without tripping KNOX?
since Knox requires a separate login even after phone boots up i would guess it is not accessible with just a booted up and unlocked phone. last i read it created an additional "encrypted sandbox" on the already unlocked phone where data did not cross the sandbox barriers.
Aki-to said:
I have read a lot about Samsung KNOX and how it is supposed to work, but the more I read the less I know how KNOX is tripped.
I understand what KNOX is, I know how it works and I know the supposed "reasons" it exists.
I also do know, that KNOX has changed a couple of times in the past years, which is perhaps the reason I find to much conflicting information on this topic.
So, since the A51 is quite a new phone, I want to know, how KNOX is tripped on the Galaxy A51.
Is unlocking the bootloader already enough?
Can you unlock the bootloader but flashing anything will make it trip?
What exactly is allowed with the newest KNOX and at which point does it exactly trip?
Can you not modify anything anymore, without tripping KNOX?
Click to expand...
Click to collapse
Unolocking the bootloader isn't enough to trip Knox, it trips once you flash a modified file.
Like TWRP, a ROM, etc that doesn't have Samsung's signature of official software.

Does unlocking bootloader trip knox?

Hello Everyone!
Okay, here's the thing, i wanted to root my Samsung Galaxy A51 (SM-A515F) Firmware: EUH1(KSA). I've unlocked my bootloader, then thought that i didn't want to risk bricking my phone rooting it so i stopped. But i noticed that just unlocking bootloader trips Safetynet apparently(which sucks) and it trips knox too, which i believed since I can't use security folder and Samsung pass anymore and it kept insisting that my phone is 'rooted' (which it isn't, just the bootloader unlocked). I then went into ODIN mode to verify it, and found it that my knox counter is still 0 (000000).
TL;DR, so does unlocking bootloader trip knox? cause most of the sites, threads, guides I've went to generally says it does. Thnx for answering.

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