Backing up EFS/IMEI partition - Samsung Galaxy S8+ Questions & Answers

Hi there
I can only apologize for having to ask this question, and I do feel a complete n00b for having to ask, but I actually can't afford to get this wrong, so need some help from people who know what they are doing
I've just defected from my Apple iPhone 6+, as Android phones are the only ones that are listed as 100% compatible with my Tobii I12 eyegaze communication device. Using this device I can make calls, texts, Facebook, pretty much anything I want to without needing physical access to the phone.
Now, I also have a Samsung Tab 2 (SM-T700) which I rooted, installed recovery, custom ROM etc some time ago, as it was only a cheap tablet and if it all went wrong, I could afford to wait and mess around to try and fix it.
The thing is, it's more essential my S8+ is working, as I use it with my communication aid to get through to the outside world.
OK, so what do I want to do? Obviously, I'm hoping to achieve root, and one of the reasons for this is because I paid full price for my S8+ (not a network upgrade), the full >£700. This in turn means that I get the privilege of being punished by not being able to use Three WiFi Calling. The signal at my house is a bit shaky, and I read that with a CSC (Country Specific Code) I might be able to get VoWifi working It'd also be nice to know my phone had the capability of running what I want it to....
So, I know that rooting is going to trip knox & warranty void. Not an issue. Having a device that does what I ask it to is more important than some stupid warranty.
However, I have read that before doing ANYTHING, I should make sure I have a backup of this EFS/IMEI partition. Because once it's gone, it's gone for good.
Now I never did anything like this for my tablet, so now I'm just a bit scared I'm going to wipe this partition and completely hose my phone in the future.
So, can somebody please let me know what I should be doing? I really can't afford to be without my phone, but I really need Wifi Calling to work!
Sorry if this is a n00b question that has been answered before. Thanks in advance

Never mind.....
Did a bit more reading today and it makes more sense now.... EFS partition is just a partition on the device; and there are many tools that can backup partitions.... with root, I could even just 'dd' it
Going to take it slowly, but hopefully I can start contributing soon instead of just asking questions
Thanks again

I'm kinda curious about this too, this will be my first attempt at rooting a Samsung and I've seen horror stories about losing the EFS partition in the past.
Incidentally, if you're based in the UK, tripping knox doesn't void your warranty.

Related

[Q] Shouldn't Bother Rooting?

I'v jailbroken itouches several times flawlessly so the concept of rooting is not new to me. I understand what has to be done and what it does for the device, positively anyway. I'v had the G2x for about 2 weeks now and i'm thinking about rooting it, but i don't want to do it without knowing all of the cons. I know i would be voiding my warranty, and that i might not get direct updates from my service provider anymore. I'v also read a lot about people rooting it without error, but for some reason after rooting the phone crashes. i took the risk of jailbreaking my itouch because i had it for 2 years already when i decided to jailbreak it, and because it's basically still just an mp3 player. This time it would be a phone which is more important to me. im also aware that gingerbread is coming out soon, so if someone could explain to me what the negatives are or at least point me in the right direction if this thread is already answered i would appreciate it.
With my phone, unrooting is easy if you know what you're doing, so I don't worry about the warranty part. The usual horror stories about rooted phones are usually due to user error. If you don't know what you're doing and don't fully read the instructions, you can end up doing some damage that is either difficult or impossible to fix. I think some people root their phones just for wireless tether, ad blocking, screenshots, or some "root only" app they see in the market. Then they decide they want to change their status bar icons or something and flash something that was not made for their phone or the stock rom... or whatever the situation may be.
My point is, if you know what you're doing you'll be fine. You should be able to go back to stock, unrooted - I'm not familiar with your phone, so I'm speaking in generalities. There are already Gingerbread roms out for many devices that haven't received official updates yet, even for phones that will never receive an official 2.3 update.
The only downside of rooting that I can think of is that you won't be able to put your phone down. Ultimately the choice is yours. If you don't want to put the time into learning, don't do it. It's a ton of fun though, I couldn't imagine not being rooted... there's so much more available for rooted phones.
My Evo + xda Premium App = This post.

Opinions on Rooting

OK I'm going to ask the million dollar question... Is rooting my Tab 7 Plus worth the risk? I understand it adds a lot of customization and more I'm sure. Is it worth the risk though? How likely am I to kill this thing/will bight me in the butt down the road.
Rooting your GT+ is totally harmless. What you do after you root your device may harm it. There are excellent applications that need root and that is why you want to do it. But at the same time if you are not sure of an application and give it root privileges, well is like giving a thief the key of your safe.
By the way, if you want to get rid of the root and are not too experienced, factory reset your device and the root is gone.
P_
Zadeis said:
OK I'm going to ask the million dollar question... Is rooting my Tab 7 Plus worth the risk? I understand it adds a lot of customization and more I'm sure. Is it worth the risk though? How likely am I to kill this thing/will bight me in the butt down the road.
Click to expand...
Click to collapse
That's a really difficult question to answer for anyone other than yourself. Rooting the tablet isn't as risky as modifying the engine in a car (which is a physical modification in most cases), but more risky than just installing (or uninstalling) an application.
Are you happy using the tablet as-is? If so, don't root it. Leave it alone. I honestly don't think a person SHOULD root the device just for the sake of rooting it.
If there's a specific reason why you want to, then go for it. However, learn as much as you can about what you are doing and what the risks are BEFORE you do it. Keep in mind that it's a slippery slope. First you root it, then you start installing recoveries, alternate firmware, different kernels, etc. It's VERY EASY to get caught up in all the tinkering. I can offer one bit of comfort: It's actually not that easy to completely brick a samsung device. As long as the bootloader is intact, you can always use ODIN to restore it to factory condition.
Good luck
Gary
Well thank you for the general knowledge. I think on it more and maybe throw a thought on here later after thinking on it more. I am happy with it as is but we'll see what happens as I am very new to the android environment. This is my first android based device I have ever owned/ used really.
The ONLY reason really pushing me to root it is the fact I have a GPS app on my TAB that doesn't install it's maps to the sd but actually to the main internal memory. That's irked me ever since I got it when I have a nice nearly empty 16GB SD card sitting inside my TAB.
Stupid question - is there a way to root the Samsung 7 yet revealed that doesn't involve a bootloader?
I would really hate to do anything that could mess up upgrading to ICS when it comes out, but I need to root to make the VPN do anything useful (like connect to our IPSec VPN with group authentication at work)
Right now I am stuck using VNC on my Samsung Epic 4G if I dont have my laptop handy and need to connect to my linux workspace. Needless to say, the experience using it on a cell phone is less than ideal.
All you have to do is flash a zip file using the existing recovery. All it does is add su. I don't know of any root that is simpler and safer than that.
IMO, rooting is a must and like the others have said, you need root to use backup apps and such. To me, it's a necessity.
vobguy said:
Stupid question - is there a way to root the Samsung 7 yet revealed that doesn't involve a bootloader?
Click to expand...
Click to collapse
Rooting the SGT7+ does NOT touch the bootloader.
P_

[Q] Why Root the One plus one?

Hi all
i Just got my one plus one last week
it was amazing , it was snappy , the screen is gorgeous , and the CM is plain great , albeit many apps did find unresponding oddly enough
i've had many phones in the past that are not so great x10 mini , x8 , galaxy ace, galaxy nexus
all of which are miles away when compared to the one plus
and since they are so freaking lag i decided to root them and gave them root and changed their bootloader
but from one phone to the other all of them seems to die out in about 9 months after i root them , and i don;'t know what i did wrong , most of them are dead because i fried the motherboard or something
still why would you root the one plus when it's already so fast ? i am considering rooting mine but i am really scared i might kill it
First, rooting doesn't make it faster or slower. Also, it doesn't broke the phone neither now or in 12 month time.
Second, you need root for some in depth access on your phone, or some programs like Titanium Backup may require root to work.
Third, the rule of the thumb say, if you don't need it, don't do it!
greenify, adblock, titanium more than enough reasons to root.
I go by the old saying "If you have to ask, you'll never know"
Generally anyone who's asked me if they should root their phone, or install 3rd party firmware, my answer is no. It has to be something you want to do and something you're willing to accept the risk doing. I'm a flashaholic. I flash a new rom every few days, or update existing ROM i have. I'm never content with the status quo on my phone and devices and always play. I accept the risk of running into a situation where I go to make a call, watch a movie, or open a email and my phone locking up due to running bleeding edge untested code. Mind you I can always recover from bootloader and know how so I know I won't permanently screw a phone, just until I can flash a older rom, or recover with a PC. If you have to ask, it means you're not sure about what you're getting into. If you fall into this situation I would refrain from asking others and instead read around in the 1,000's of posts in this OnePlus forum and decide for yourself.
Not that being said, root is simple. It's a more of a "Set it and forget it" type of deal, at least until a OTA update arrives. Custom roms is where the aforementioned comes into play mostly. If you want to start getting into the Flashing world with Android its the place to start. Myself I read and read after I got my Galaxy S4, first real Android phone, and went straight to CyanogenMod with it. Skipped rooting.
WoodburyMan said:
Generally anyone who's asked me if they should root their phone, or install 3rd party firmware, my answer is no. It has to be something you want to do and something you're willing to accept the risk doing.
Click to expand...
Click to collapse
He may not be aware of what can be accomplished with root access and find the profits interesting. He doesn't necessarily know if he wants to do if he doesn't know it exists/is possible.
I don't want to flame or anything, but since you've been around for almost 3 years, you should really know better.
Firstly, rooting does not fry your motherboard. Seriously, why would you think so?
The fact that your previous phones became slow after a short while is because you probably got them stuffed with bloatware and have not maintained your phone in a healthy way.
As to why you should root your phone,...
Well, most apps that help you maintain your phone and keep it as optimized as possible require root.
This kind of proves my previous point regarding the speed of your previous phones.
I would start reading some more and eventually you'll be able to answer your own question.
Good luck!
Well that's easy, if your not interested in using apps that need root access there's no use in rooting your device. It's nothing magic which will make your device fly or make a cup of coffee for you.
Why not?

[Q] Knox, root and "permanent"

Hi All,
I'm reading that root can trip knox, having never owned a Galaxy since the S2 I'm not overly familiar with knox but I've read about what it does.
What is bothering me here is that there seems to be a suggestion that once knox is tripped, that's it. There's no way to untrip it even when flashing a stock factory image again via odin?
Firstly, is this correct?
I'm worried about resale value to the point that I might not care about mobile payments etc, but others might, so a tripped knox could affect value.
If the above is correct I might cancel my pre order, I need root but I don't want a phone that's got limited resale either.
TheBlueRaja said:
What is bothering me here is that there seems to be a suggestion that once knox is tripped, that's it. There's no way to untrip it even when flashing a stock factory image again via odin?
Click to expand...
Click to collapse
Yes that is correct. Once the Knox flag is tripped you can not reverse it.
I don't think it has been confirmed yet that Knox flag breaks Samsung Pay. From what I have read it breaks software dependant on Knox security, ie the BYOD type apps. They use it as an indicator your device is insecure, so It seems reasonable to assume Pay would break too.
Damn it, What a stupid thing to do.
I can understand it being tripped if you are rooted, but to make it permanent if the situation is reverted is ridiculous.
Thanks for the info, I'll hold out a few more days to see what develops just in case, but I think I'm going to cancel my preorder as I need root but I also have to consider selling it on eventually.
Stupid, stupid decision. :crying:
TheBlueRaja said:
Thanks for the info, I'll hold out a few more days to see what develops just in case, but I think I'm going to cancel my preorder as I need root but I also have to consider selling it on eventually.
Click to expand...
Click to collapse
hey, why do you need rooting your phone?
I thought the same way but now I'm going to use adaway with setting up proxy settings in my wifi and mobile apn connections.
The only thing I should need root for is Titanium Backup, but I think with Helium (by ClockworkMod) backups should be performed easily
eSportler said:
hey, why do you need rooting your phone?
I thought the same way but now I'm going to use adaway with setting up proxy settings in my wifi and mobile apn connections.
The only thing I should need root for is Titanium Backup, but I think with Helium (by ClockworkMod) backups should be performed easily
Click to expand...
Click to collapse
Its more than Adaway / Titanium backup, its removing Facebook, Instagram and Skype, which i don't use and or want, being able to run Xposed and root explorer so that i can use MY phone the way I want it without permanently affecting the resale value even if its returned to stock.
Look at it this way, I have a lovely PC for you - top of the line, fast as hell, lots of memory, premium price, but im going to install Windows 8 on there and a bunch of FREE apps , only im going prevent you from removing them, make sure you cant put Linux or Windows 7 or Windows 10 on there until i say so, prevent you from making any change to the Windows directory otherwise we'll stop you from buying things PERMANENTLY and void your warranty on the hardware so that you'll not be able to sell it on. EVEN IF you factory reset it with my software....
Its a shame as i REALLY wanted this phone, but it looks like it may not be for me unless something crops up with regard to KNOX and root.
TheBlueRaja said:
Its more than Adaway / Titanium backup, its removing Facebook, Instagram and Skype, which i don't use and or want, being able to run Xposed and root explorer so that i can use MY phone the way I want it without permanently affecting the resale value even if its returned to stock.
Click to expand...
Click to collapse
I'm absolutly with you.
For me it's not a problem because I'm using Facebook, Instagram and Skype. Didn't recognized that they're preinstalled... sry^^
Of course I prefer using the phone the way I want, but it's not as important to me as loosing the warranty. Sure this is quite stupid that Samsung wants to tell us how to use their phone.
If mobile payment will still works with triggered Knox, I'll definetivly root my S6 Edge and maybe try to slim down the stock Rom like I did with my Eragon Rom for the HTC One M7
eSportler said:
I'm absolutly with you.
For me it's not a problem because I'm using Facebook, Instagram and Skype. Didn't recognized that they're preinstalled... sry^^
Of course I prefer using the phone the way I want, but it's not as important to me as loosing the warranty. Sure this is quite stupid that Samsung wants to tell us how to use their phone.
If mobile payment will still works with triggered Knox, I'll definetivly root my S6 Edge and maybe try to slim down the stock Rom like I did with my Eragon Rom for the HTC One M7
Click to expand...
Click to collapse
Yeah - its a shame - hopefully you can still use it, time will tell.
If root comes out without KNOX trigger i'll be all over this - might be too late for day 1 though - i suppose i'll just have to be patient and keep an eye on it.
In the mean time, i'll keep my preorder until the 5th or so then cancel unless something comes up - damn shame though - still i've got my HTC One m8 keeping me happy for now.
There hasn't been solution for KNOX for so long, that it's very hard to imagine that there will ever be one.
I hate KNOX so much, I don't think I will ever purchase another Samsung phone. This is not an absolute statement of course, however it is rather so.
JuniorGG said:
There hasn't been solution for KNOX for so long, that it's very hard to imagine that there will ever be one.
I hate KNOX so much, I don't think I will ever purchase another Samsung phone. This is not an absolute statement of course, however it is rather so.
Click to expand...
Click to collapse
If you have root couldn't xposed just hook that call and return KNOX=True whenever queried? I've seen something similar in the past to make Google wallet work with root and without the secure element it required.
Chad
JuniorGG said:
There hasn't been solution for KNOX for so long, that it's very hard to imagine that there will ever be one.
I hate KNOX so much, I don't think I will ever purchase another Samsung phone. This is not an absolute statement of course, however it is rather so.
Click to expand...
Click to collapse
The thing is, Knox isn't just going to be a Samsung thing, after all its a Samsung and Google collaboration and i believe and it will end up spreading. To be honest, i've no objection and it think its a good idea - HOWEVER
I do think the real problem here is that IF the phone is returned to stock it should reset the KNOX flag back to being unset. Simple, everyone is happy.
If i choose to root then fair enough, trip knox as the phone isn't as secure as it should be - i don't expect to have root access or Admin privileges on my work PC normally and if i try to work round it there are logs to indicate that.
However, i DO expect to have it on my OWN computer and without the threat of the hardware being handicapped should i wish to sell it on, that's just wrong.
TheBlueRaja said:
The thing is, Knox isn't just going to be a Samsung thing, after all its a Samsung and Google collaboration and i believe and it will end up spreading. To be honest, i've no objection and it think its a good idea - HOWEVER
I do think the real problem here is that IF the phone is returned to stock it should reset the KNOX flag back to being unset. Simple, everyone is happy.
If i choose to root then fair enough, trip knox as the phone isn't as secure as it should be - i don't expect to have root access or Admin privileges on my work PC normally and if i try to work round it there are logs to indicate that.
However, i DO expect to have it on my OWN computer and without the threat of the hardware being handicapped should i wish to sell it on, that's just wrong.
Click to expand...
Click to collapse
The problem, from a security perspective, is that there is currently no way to ensure that a phone returned to stock is secure.
Samsung decided from that point to just say once the phone is compromised... that's it. Certain features of Knox disable and, if it's your carrier's policy, the warranty may be void.
But let's be honest from that point as well. Rooting, in most contracts and terms of use, voids the warranty anyhow.
I think many have taken that for granted and don't realize that it can't be in a secure environment.
garwynn said:
The problem, from a security perspective, is that there is currently no way to ensure that a phone returned to stock is secure.
Click to expand...
Click to collapse
Why? I don't see how a phone flashed with Odin using a ROM with a verified cryptographic signature cant be deemed secure? Check this - unset KNOX...
This is like saying that once i've installed Ubuntu on a "Windows" laptop it can no longer be deemed secure and while we are at it, lets fry a hardware fuse?
We are SOFTWARE rooting the phone here, not hardware hacking.
I'm actually curious as to the legality of it as well as they are disabling a part of your phone permanently and on purpose because i choose to run a different OS than the one supplied, but i'm no lawyer and there's probably a loophole or a law allowing it somewhere.
TheBlueRaja said:
Why? I don't see how a phone flashed with Odin using a ROM with a verified cryptographic signature cant be deemed secure? Check this - unset KNOX...
This is like saying that once i've installed Ubuntu on a "Windows" laptop it can no longer be deemed secure and while we are at it, lets fry a hardware fuse?
We are SOFTWARE rooting the phone here, not hardware hacking.
I'm actually curious as to the legality of it as well as they are disabling a part of your phone permanently and on purpose because i choose to run a different OS than the one supplied, but i'm no lawyer and there's probably a loophole or a law allowing it somewhere.
Click to expand...
Click to collapse
What you may be doing is granting software access to root and you may only use root to modify things at a software level.
But you have to keep in mind that's not the only thing root access can do.
It's perfectly legal and I'll even wager they're part of the DoD specification that both they and Apple want to sell to the government.
You have to consider it from a worst case scenario. If a device has been modified in any way, how can they assure it's been reset 100% completely back to stock... both at a hardware, firmware and software level?
Without physically inspecting the phone, they can't - which is why I think this is the way it is.
The Knox team put out a blog entry a while ago about this topic, noting it's a good balance between ensuring security and allowing non-business users to root the device if they want to.
One other note: I don't know enough about the Exynos devices past N2 to say if they've fixed it... but the Note 2's Knox flag was not an e-fuse and could be reset.
garwynn said:
What you may be doing is granting software access to root and you may only use root to modify things at a software level.
But you have to keep in mind that's not the only thing root access can do.
It's perfectly legal and I'll even wager they're part of the DoD specification that both they and Apple want to sell to the government.
You have to consider it from a worst case scenario. If a device has been modified in any way, how can they assure it's been reset 100% completely back to stock... both at a hardware, firmware and software level?
Without physically inspecting the phone, they can't - which is why I think this is the way it is.
The Knox team put out a blog entry a while ago about this topic, noting it's a good balance between ensuring security and allowing non-business users to root the device if they want to.
One other note: I don't know enough about the Exynos devices past N2 to say if they've fixed it... but the Note 2's Knox flag was not an e-fuse and could be reset.
Click to expand...
Click to collapse
Hmm..
Keep in mind here i'm not suggesting apps requiring KNOX are made available whilst rooted like Samsung pay etc, only that the KNOX bit is reset if the phone is flashed back to factory defaults using Samsungs own Odin program and a cryptographically signed firmware. If at that point the phone is rooted again, it would expect it to re-trip KNOX just like it did the first time.
But, lets play a game, lets say i gain root, KNOX bit set and i cant use KNOX apps. I then use that root to make modifications to firmware on the device somehow, which is what i think your insinuating above, not necessarily the Android System partition, maybe the modem firmware (even though its closed source) or something else, for whatever purpose.
IF you have that level of knowledge of the phones hardware then i don't think it would be too much of a stretch to suggest masking the KNOX bit as set would be too hard either, maybe by intercepting the system call to check its status etc but even then when you say:-
"If a device has been modified in any way, how can they assure it's been reset 100% completely back to stock, both at a hardware, firmware and software level"
The firmware and software is taken care of by Odin, that does both, say we did modify the modem firmware above, Odin would write right over it with a VERIFIED image wouldn't it?
Whether you have root or not, you cant do anything about somebody hardware hacking, that's a whole different ball game, if you hacked the hardware you could just change to always respond as the KNOX bit not being set but that would be low level stuff way beyond what pretty much anyone here could do.
Would be interested in that blog post if you have a link - I just don't see this as anything more than a way to discourage more people from rooting.
TheBlueRaja said:
Hmm..
Keep in mind here i'm not suggesting apps requiring KNOX are made available whilst rooted like Samsung pay etc, only that the KNOX bit is reset if the phone is flashed back to factory defaults using Samsungs own Odin program and a cryptographically signed firmware. If at that point the phone is rooted again, it would expect it to re-trip KNOX just like it did the first time.
But, lets play a game, lets say i gain root, KNOX bit set and i cant use KNOX apps. I then use that root to make modifications to firmware on the device somehow, which is what i think your insinuating above, not necessarily the Android System partition, maybe the modem firmware (even though its closed source) or something else, for whatever purpose.
IF you have that level of knowledge of the phones hardware then i don't think it would be too much of a stretch to suggest masking the KNOX bit as set would be too hard either, maybe by intercepting the system call to check its status etc but even then when you say:-
"If a device has been modified in any way, how can they assure it's been reset 100% completely back to stock, both at a hardware, firmware and software level"
The firmware and software is taken care of by Odin, that does both, say we did modify the modem firmware above, Odin would write right over it with a VERIFIED image wouldn't it?
Whether you have root or not, you cant do anything about somebody hardware hacking, that's a whole different ball game, if you hacked the hardware you could just change to always respond as the KNOX bit not being set but that would be low level stuff way beyond what pretty much anyone here could do.
Would be interested in that blog post if you have a link - I just don't see this as anything more than a way to discourage more people from rooting.
Click to expand...
Click to collapse
Blog entries:
https://www.samsungknox.com/en/blog/about-cf-auto-root
https://www.samsungknox.com/en/blog/samsung’s-official-response-“towelroot”
https://www.samsungknox.com/en/blog...ox-enabled-devices-and-knox-warranty-void-bit
There are many, many more on the site, just use the search keyword root.
But that's the gist of it - they understand that some may want root for simpler reasons.
Others may want it for more nefarious ways, like trying to access the keys within the TPM.
The end result sucks for consumers; but as a IT admin I can tell you I wouldn't trust a device with sensitive corporate data if it has been rooted... ever.
Thanks very much, I'll take a look when I get a chance later.
Anyone have an idea which carriers enforce the Knox tripping for repair?
Although this looks like a great device, if the Knox trip invalidates warranty, you may be very angry if lets say the usb port or power button malfunctions and repair is not covered.
Might as well buy a Note 4 exynos since apparently warranty is not valid in usa.
bjrmd said:
Anyone have an idea which carriers enforce the Knox tripping for repair?
Although this looks like a great device, if the Knox trip invalidates warranty, you may be very angry if lets say the usb port or power button malfunctions and repair is not covered.
Might as well buy a Note 4 exynos since apparently warranty is not valid in usa.
Click to expand...
Click to collapse
Technically the US has a law, the Magnuson-Moss Warranty Act, which should limit manufacturers voiding of warranties to that damage which can reasonably be blamed on the consumer. (for example, rooting your device shouldn't void the warranty for a defective power button) However, manufacturers usually claim the opposite here and I'm not aware of successful legal challenges.
Looks like sprint at least is ok with it
http://forum.xda-developers.com/showthread.php?t=2674884
TheBlueRaja said:
Its more than Adaway / Titanium backup, its removing Facebook, Instagram and Skype, which i don't use and or want, being able to run Xposed and root explorer so that i can use MY phone the way I want it without permanently affecting the resale value even if its returned to stock.
Look at it this way, I have a lovely PC for you - top of the line, fast as hell, lots of memory, premium price, but im going to install Windows 8 on there and a bunch of FREE apps , only im going prevent you from removing them, make sure you cant put Linux or Windows 7 or Windows 10 on there until i say so, prevent you from making any change to the Windows directory otherwise we'll stop you from buying things PERMANENTLY and void your warranty on the hardware so that you'll not be able to sell it on. EVEN IF you factory reset it with my software....
Its a shame as i REALLY wanted this phone, but it looks like it may not be for me unless something crops up with regard to KNOX and root.
Click to expand...
Click to collapse
I agree. My last Samsung was a note 2 which knox wasn't a factor and not a big push then. I didn't got to any Samsung's after that due to knox.
I just want root for the reason's you do and edit the phone's density.
Its a shame that we cannot just flash back to stock and "close things up" per say if we want to sell it or have a non root related warranty issue.
Knox is mainly geared toward the business side , so why not make Knox activated by a Admin when the phone is to be used for business where the security is needed. And leave it un-activated for the rest of us.
And i would think the ratio of people rooting vs people not rooting (nor even knowing what it is) is so slim that allowing it wouldn't cause a pandemic in warranty claims.
I know before i root anything i make sure all my points are covered and there are processes in place to un-brick a device. Which i haven't had to unbrick a device since my Moto X or OG Droid.
---------- Post added at 11:13 AM ---------- Previous post was at 10:28 AM ----------
bjrmd said:
if the Knox trip invalidates warranty, you may be very angry if lets say the usb port or power button malfunctions and repair is not covered.
Click to expand...
Click to collapse
I agree +1

Necessary backups before flashing

Hey,
I might get s8+ really soon and coming from Sony, I've been wondering, is there anything worth backing up before I flash it or right after I flash it?
In Sony devices there's TA partition containing bootloader, IMEI etc which is worth backing up as you can restore TA backup and make your phone look as if it was never flashed. It's there something similar in S8? Or should I just flash it and don't worry about anything?
Thanks for answers.
Welcome to the 'Samsungverse'
olokos said:
Hey,
I might get s8+ really soon and coming from Sony, I've been wondering, is there anything worth backing up before I flash it or right after I flash it?
In Sony devices there's TA partition containing bootloader, IMEI etc which is worth backing up as you can restore TA backup and make your phone look as if it was never flashed. It's there something similar in S8? Or should I just flash it and don't worry about anything?
Thanks for answers.
Click to expand...
Click to collapse
As a former Sony fanboy, first of all, welcome.
I know that I made the right choice ditching my Z5, though to be honest, it was a bit overdue. My previous disdain of Samsung devices was due first of all to the design and secondly, the bloatware of Touchwiz, but with the S8+ I was stunned into submission.
My question to you, is why do you think you need to flash, before even getting the device, and then what were you thinking of flashing. My experience so far is that there really is no need to Root this phone, there are so many features baked in that are not present on other Android devices. It really is an amazing phone.
I haven't really looked in detail at the threads dealing with flashing, but there are a number that can be found if you do an XDA search. The process of flashing seems rather more complicated than on Sony devices, and depending on what you flash, will trigger Knox, which is a security protocol that a number of secure apps need to run, such as 'Samsung Pay' and 'secure folder'. Tripping Knox also voids your warranty and is a consequence of 'Rooting' and is IRREVERSIBLE.
IMHO, the few custom ROM's that are available don't seem to substantially add value to the overall user experience, but I'm sure there are voices here that will disagree. For instance, there are native baked in features on the device that to all intents and purposes make 'Root' dependent apps such as 'Greenify' and 'Titanium Backup' redundant., and if you want to debloat there are 'non root' apps such as 'Package disabler' and 'Adhell' which is also a good ad blocker.
If you still feel the need to flash there are plenty of guides here on XDA, but good practise, is always to make a full backup.
olokos said:
Hey,
I might get s8+ really soon and coming from Sony, I've been wondering, is there anything worth backing up before I flash it or right after I flash it?
In Sony devices there's TA partition containing bootloader, IMEI etc which is worth backing up as you can restore TA backup and make your phone look as if it was never flashed. It's there something similar in S8? Or should I just flash it and don't worry about anything?
Thanks for answers.
Click to expand...
Click to collapse
You should do a "nandroid/TWRP" backup as soon as you install TWRP the first time you load it before you make any "System Modification".
Do a total back up plus an EFS only back up in TWRP. Then reboot Recovery and this time you can modify your system and disable encryption.
This way you have a total stock back up if later on something goes wrong you have a way out!
But please search XDA forum for more details.
Good luck.
kxdaorbit said:
As a former Sony fanboy, first of all, welcome.
I know that I made the right choice ditching my Z5, though to be honest, it was a bit overdue. My previous disdain of Samsung devices was due first of all to the design and secondly, the bloatware of Touchwiz, but with the S8+ I was stunned into submission.
My question to you, is why do you think you need to flash, before even getting the device, and then what were you thinking of flashing. My experience so far is that there really is no need to Root this phone, there are so many features baked in that are not present on other Android devices. It really is an amazing phone.
I haven't really looked in detail at the threads dealing with flashing, but there are a number that can be found if you do an XDA search. The process of flashing seems rather more complicated than on Sony devices, and depending on what you flash, will trigger Knox, which is a security protocol that a number of secure apps need to run, such as 'Samsung Pay' and 'secure folder'. Tripping Knox also voids your warranty and is a consequence of 'Rooting' and is IRREVERSIBLE.
IMHO, the few custom ROM's that are available don't seem to substantially add value to the overall user experience, but I'm sure there are voices here that will disagree. For instance, there are native baked in features on the device that to all intents and purposes make 'Root' dependent apps such as 'Greenify' and 'Titanium Backup' redundant., and if you want to debloat there are 'non root' apps such as 'Package disabler' and 'Adhell' which is also a good ad blocker.
If you still feel the need to flash there are plenty of guides here on XDA, but good practise, is always to make a full backup.
Click to expand...
Click to collapse
First of all, I enjoy modifying phone to my needs, this is how it all started for me. Most importantly I want to develop a kernel for S8+. It made world of a difference on my Z1 and I want to continue my work on S8+, from scratch, but still. I'm currently having a discussion with Samsung support whether they respect EU laws regarding Knox and warranty. As you can see, I've done tons of work so far and I want to continue doing so.
Secure folder doesnt really matter for me, Samsung Pay is soooo limited in Poland, or for that matter, any other sort of payment with NFC/phone, I haven't seen a single shop that was screaming that they support that in Warsaw, but I wasn't necessairly looking around for that, as apart from shop having to have that, bank has to have that and phone aswell, so too much hassle for little gain.
As for other options of blocking ads, they all run actively, not passively, so they put more strain on CPU, package disabler most likely does the same thing as just disabling an app manually in settings -> applications. It doesn't free up any memory in fact.
Not to mention other cool mods that can be done on this device.
samteeee said:
You should do a "nandroid/TWRP" backup as soon as you install TWRP the first time you load it before you make any "System Modification".
Do a total back up plus an EFS only back up in TWRP. Then reboot Recovery and this time you can modify your system and disable encryption.
This way you have a total stock back up if later on something goes wrong you have a way out!
But please search XDA forum for more details.
Good luck.
Click to expand...
Click to collapse
Thanks, this is exactly what I needed to know. I'll see what samsung support says about whether they respect EU warranty laws or not and if they do then I'll trip knox instantaneously.
@kxdaorbit I didn't know that samsung implemented a firewall inside of their devices, that's pretty awesome! Adhell might actually do wonders, thanks for info man!

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