Database Develop

[ROOT] PingPongRoot ***S6 & S6 Edge Root Tool*** by idler1984

It seems that many 925A'ers are not leaving this forum to find out that YES, we have root! The unnecessary questions, comments, doubts are starting to pile up, so maybe this is the best way to ensure everyone knows that YES (again), we have root. Here are THREE posts from the SAME person in DIFFERENT threads asking the SAME thing:
There's root for the g925a? Where?
Click to expand...
Click to collapse
Where's the root? How do I do it?
Click to expand...
Click to collapse
How do we root the 925a?
Click to expand...
Click to collapse
If that won't drive you crazy, it should at least get you warned for not following forum rules and searching instead of posting for no reason..... If that user searched, they would have easily found this thread showing you exactly how to root the 925A!
http://forum.xda-developers.com/showthread.php?t=3103016
To be 110% clear....... this was developed by @idler1984, NOT me, so thank them - all credit goes to them, I'm just trying to keep the 925A forum cleared up if at all possible!
ENJOY!
EDIT - and because someone asked........ Root has been achieved for both OCE and the 5.13.15 OE2 update
EDIT 2 - and because more people can't read, you CANNOT root anything past May 15th builds, so none of the OF_ updates, nothing that comes out after May 15th, so don't update unless you want to lose root! The information is all there in the thread linked above, if you don't read, you don't have anyone to blame but yourself!

Good job. Was thinking of doing the same.

omg thank you. by the way that first quote was mine sorry. and i did search to no avail. thanks a bunch for clearing this up. and ill try to be more thorough with my search next time.

Nothing for G925AUCU1AOCE9

spotdog14 said:
Nothing for G925AUCU1AOCE9
Click to expand...
Click to collapse
Is that your current baseband? That's even newer than G925AUCU1AOE2, though I think you added an extra C near the end....

KryptosXLayer2 said:
Is that your current baseband? That's even newer than G925AUCU1AOE2, though I think you added an extra C near the end....
Click to expand...
Click to collapse
You are correct, I did add an additional letter but its as follows:
G925AUCU1AOC9
Here's a screenshot:
http://i.imgur.com/jEkrb2o.png

spotdog14 said:
You are correct, I did add an additional letter but its as follows:
G925AUCU1AOC9
Here's a screenshot:
http://i.imgur.com/jEkrb2o.png
Click to expand...
Click to collapse
Okay, that makes sense then, OC9 instead of what I thought you were talking about, "OE9" which I guess does not exist (yet?)
They skipped that one because OE2 is out and there's no need to get the build in the middle developed, from what I can tell.... I've been wrong before though! Just hit your software update and get OE2 then root that, it has the most updates we're going to see before 5.1.1 comes out next month (still more speculating, but that's an informed guess this time based on lots of reading up on the new Galaxy from across the web)

KryptosXLayer2 said:
Okay, that makes sense then, OC9 instead of what I thought you were talking about, "OE9" which I guess does not exist (yet?)
They skipped that one because OE2 is out and there's no need to get the build in the middle developed, from what I can tell.... I've been wrong before though! Just hit your software update and get OE2 then root that, it has the most updates we're going to see before 5.1.1 comes out next month (still more speculating, but that's an informed guess this time based on lots of reading up on the new Galaxy from across the web)
Click to expand...
Click to collapse
Gotcha, I haven't been pushed the update yet so hopefully when I do ill be updated to OE2.

KryptosXLayer2 said:
Okay, that makes sense then, OC9 instead of what I thought you were talking about, "OE9" which I guess does not exist (yet?)
They skipped that one because OE2 is out and there's no need to get the build in the middle developed, from what I can tell.... I've been wrong before though! Just hit your software update and get OE2 then root that, it has the most updates we're going to see before 5.1.1 comes out next month (still more speculating, but that's an informed guess this time based on lots of reading up on the new Galaxy from across the web)
Click to expand...
Click to collapse
Hi,
Any news or update on "G925IDVU1BOE3"?? with pingpong root?
Am not getting help from anywhere else even from http://forum.xda-developers.com/galaxy-s6/general/root-pingpongroot-s6-root-tool-t3103016/
Any help really appreciated.
Regards,
Richa

RichaJune said:
Hi,
Any news or update on "G925IDVU1BOE3"?? with pingpong root?
Am not getting help from anywhere else even from http://forum.xda-developers.com/galaxy-s6/general/root-pingpongroot-s6-root-tool-t3103016/
Any help really appreciated.
Regards,
Richa
Click to expand...
Click to collapse
Wrong forum, this is for G925A

Any update on root for of3. Made the mistake of updating and not doing my research
Sent from my SAMSUNG-SM-G925A using XDA Free mobile app

aidanipod said:
Any update on root for of3. Made the mistake of updating and not doing my research
Sent from my SAMSUNG-SM-G925A using XDA Free mobile app
Click to expand...
Click to collapse
Or reading....... or searching the thread linked in the OP.......
idler1984 said:
I'm getting increased queries and replies in this post/PM recently, so I'll try to make this clear (hopefully) for 99% of people. Short version of OP which you must read:
2. No new ROM can be supported as bug has been fixed.
Full story:
New bootloader blocks downgrading, be careful installing 5.1.1 OTA!
Kernel built after May 15th (including some 5.0.2 and all 5.1.1) have this bug fixed. Be cautious when installing OTA these days and FlashFire might be your best shot of upgrading systems. Use Odin to unroot and receive OTA if you want.
Click to expand...
Click to collapse

So there's not going to be a root for the latest AT&T OTA update?
Sent from my SAMSUNG-SM-G925A using XDA Free mobile app

thanks

OF3 can be downgraded to OE3 ???

It can't Odin will gave an error
Sent from my SAMSUNG-SM-G925A using XDA Free mobile app

Thanks, Today, I shall use this tool to root AT&T S6 edge.

Thought the latest update was going to take me to aoe2 but went to G925AUCU2AOF4.
Is it possible to go back or is there another root method available?
Sent from my SAMSUNG-SM-G925A using XDA Free mobile app

afpilot said:
Thought the latest update was going to take me to aoe2 but went to G925AUCU2AOF4.
Is it possible to go back or is there another root method available?
Sent from my SAMSUNG-SM-G925A using XDA Free mobile app
Click to expand...
Click to collapse
If you search the forums, you'll find it mentioned many times that there is no way to downgrade and there is also no known root method for OF4

Wonder if this exploit would work for us possibly? http://forum.xda-developers.com/showthread.php?t=3174262
Sent from my SAMSUNG-SM-G925A using Tapatalk

New Att OTA update (G900AUCU4BOF2)

Changelog only mentions performance and security enhancements. 296MB download. Post your impressions or differences.

I am downloading it now on my fairly slow wifi at work. I'll post something about it later this evening.

mattucf said:
I am downloading it now on my fairly slow wifi at work. I'll post something about it later this evening.
Click to expand...
Click to collapse
Downloaded and installed. Seems to be working fine. DID NOT AFFECT ROOT. I did, however, start getting messages about "unauthorized actions have been detected". Not sure what that is about.

I believe the purpose of this OTA update is to: 1. Update the bootloader from OC4 to OF2 (maybe to prep for 5.1 to roll out?) and 2. Patch the Samsung keyboard vulnerability. I don't think they'd be able to fit much more into an update this small.

TheBadgers said:
I don't think they'd be able to fit much more into an update this small.
Click to expand...
Click to collapse
The update is 300MB. I've installed 4.4.4 ROMs and GApps smaller than that. I'm interested to see what all is getting updated, as I'm sure many other people here are.

Yep.. I shall be avoiding this one for now.
From reports I have seen, I think many have taken the update expecting 5.1 lol
This one just seems to plug up more holes. Probably a good update for normal users. Probably a bad one for ppl planning on trying to get root.
I am curious about the state of the bootloader in this update tho. Maybe there is a small chance it's not locked down as bad and will allow a downgrade
Can anyone fill me in on that part? Wishful thinking but you never know u guess
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

adam_ky said:
Yep.. I shall be avoiding this one for now.
From reports I have seen, I think many have taken the update expecting 5.1 lol
This one just seems to plug up more holes. Probably a good update for normal users. Probably a bad one for ppl planning on trying to get root.
I am curious about the state of the bootloader in this update tho. Maybe there is a small chance it's not locked down as bad and will allow a downgrade
Can anyone fill me in on that part? Wishful thinking but you never know u guess
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app
Click to expand...
Click to collapse
I was hoping the same about the bootloader but I've been burned 3 times now taking updates and 2 weeks later a root exploit it available and I can't see them making it easier lol.
Sent from my SAMSUNG-SM-T337A using Tapatalk

cmerlyn said:
Downloaded and installed. Seems to be working fine. DID NOT AFFECT ROOT. I did, however, start getting messages about "unauthorized actions have been detected". Not sure what that is about.
Click to expand...
Click to collapse
On reboot, I got the "System software not authorized by AT&T hasa been found on your phone". No way to boot up. Hoping for a solution from one of the nice folks here.

Sounds like this bootloader is even more evil than oc4
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

I'm not rooted because I was stupid and didn't do it before upgrading to Lolipop. As a normal nobrooted user it seems fine. I hope it fixed some of the performance issues I was having.

mattucf said:
I'm not rooted because I was stupid and didn't do it before upgrading to Lolipop. As a normal nobrooted user it seems fine. I hope it fixed some of the performance issues I was having.
Click to expand...
Click to collapse
Umm it depends what ur after.. root still may be possible in the future... if u want to wait out for that I wouldn't update.
From what I see the update is anti root and fixes keyboard exploit.. that's about it.
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

Apperantly we didn't learn our lesson last time about taking OTA updates....:banghead:

nutt_case said:
Apperantly we didn't learn our lesson last time about taking OTA updates....:banghead:
Click to expand...
Click to collapse
Lol don't feel bad I had upgraded to lollipop with root , had backups and everything but bricked my phone and somehow loaded the non rooted lollipop and it blows I had an anTuTu score of 43 thousand and now I'm lucky to get 33 not to mention upgrading my moto x rite b4 the eploit came out so yeah I saw this and said no way even though I tried to think hopefully the bootloader upgrade would let us downgrade back to 4.4.2 again lol
Sent from my SAMSUNG-SM-G900A using Tapatalk

I just caught my phone trying to install the update but thank you samsung for a removable battery lol . Just a warning don't just keep hitting remind me it will just start updating .

I haven't got anything yet.. I'm hoping my custom apn with fota removed will delay this
I think it should be criminal for samsung or att to be able to "force" updates without user consent.
Even if they are patching security exploits.
I think you can say for certain that they are probably more concerned that you can use this exploit to root your phone or do things with it they don't want you to... more so than they are worried about the keyboard exploit harming you.
It's just not normal for att to act this fast to patch something like this.
Keep holding out, I'm sure we can acomplish something using the exploit
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

The update started downloading. I froze the update service via titanium back up. I am currently on 5.0 stock rooted and busy boxed. Waiting to hear if locks root out...

davidalindsey said:
The update started downloading. I froze the update service via titanium back up. I am currently on 5.0 stock rooted and busy boxed. Waiting to hear if locks root out...
Click to expand...
Click to collapse
Can you grab the ota file from data/fota and upload? I can review aboot and see if the qfuse counter has been increased yet again.

هاي
أرسلت من sm-n9005 بإستخدام تاباتلك

As a non rooted person, is there any other steps I can take to stop it from updating? Is there a way to crash at he att update service? Lol
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

There's another thread going that reports to have the stock recovery image for OC4. I wonder if it's possible to downgrade via odin to roll back this update to include restoring the keyboard vulnerability that's being explored by @TheBadgers as a potential means to achieve root.

Root S5 Active Help

Can anyone help me out with rooting my s5 active? Its the SM-G870A model with android 5.0, baseband G870AUCU2BOF3, and kernel 3.4.0.

No, can't be done. This was the best place to ask so save yourself the time and stop Googleing. It can not be done.

just want to confirm that this cannot be done even if we are not concerned about tripping KNOX sensor? i am so sad, i've been away from rooting devices and i should have known better when i was updating that i should have rooted first.

Still no. If you took OF3 there is no going back or rooting. Sorry, some work is being done but no progress and probably won't happen.

any updates?
Been 2 months any updates? Like a DA i updated to this current version OTA, as a long time rooter I should have known better.

brothersman said:
Been 2 months any updates? Like a DA i updated to this current version OTA, as a long time rooter I should have known better.
Click to expand...
Click to collapse
Negative, OF2 and OF3 still unrootable, and at this point i'd say the chances are pretty slim.

Any news????? To Root G870AUCU2BOF3 or downgrade?

Still no.
Sent from my SAMSUNG-SM-G870A using Tapatalk

Any chance with chainfire's systemless root?

719c6 said:
Any chance with chainfire's systemless root?
Click to expand...
Click to collapse
Nope, i wait for android N.... :/

blackbiking said:
Nope, i wait for android N.... :/
Click to expand...
Click to collapse
Hate to break it to you but it won't get any better with N.
Sent from my SAMSUNG-SM-G900A using Tapatalk

Rakuu said:
Hate to break it to you but it won't get any better with N.
Sent from my SAMSUNG-SM-G900A using Tapatalk
Click to expand...
Click to collapse
Long time lg user here im actually comming from a g4 to a active because one i love the phone im a mechanic i cracked my screen and it works fine just dont wanna dammage it any more. Im so fed up with lgs locked bls. Ive done a lotta test with g4 and the encryptions used are crazy. Ive seen unlocks and roots come year s later. Were dealing with a no rootable situation on marshmallow. Bootloader in mm checks integrity on system partition also no bl unlock no root. And android n will even be worse. I personaly think unless it a completly low end phone development is dead unles u buy a developer or internqtional series phones. The new encryprions use 256 bit keys which are just about uncrackable

TheMadScientist420 said:
The new encryprions use 256 bit keys which are just about uncrackable
Click to expand...
Click to collapse
Tends to be the plan when they lock it.
Sent from my Galaxy S5 using XDA Labs

I came from an iphone and jailbreaking was rather simple. I am trying to root by s5 active to get all that crap off of it that it came with. I am finding models that are similar to mine but none that are exact (the same as the OP). There is still no way to do it on my phone?

Rooting G920A running Basband Version G920AUCU3CPD6 (Marshmallow 6.0.1)

Hey All,
I've spent days now scouring the web looking for anyone and anything to root my G920A running G920AUCU3CPD6 (Marshmallow 6.0.1). There is absolutely nothing I could find. I have queried just about every method, and I have several emails out to various developers, sw companies, etc., but nothing yet. Is there anyone out there who can help?

Is there anyone out there who can help?
Click to expand...
Click to collapse
No.

Jeez
Wow what a blunt reply. Anyway I have also been probing the far corners of the clearweb for a root on this device. No luck. PingPong root doesn't support it, SRSRoot says that it rooted the phone, but it doesn't actually work. I'm not going to try to flash a rom with odin cause i need to keep the data on it. Lmk if you find anything out. Peace.

I believe the next logical step would be to try reverse-engineering parts of the new kernel and look for exploitable bugs, rather than looking for work done on the subject by other individuals and attempting to classify them as the same thing.

jordaneagle220 said:
Wow what a blunt reply. Anyway I have also been probing the far corners of the clearweb for a root on this device. No luck. PingPong root doesn't support it, SRSRoot says that it rooted the phone, but it doesn't actually work. I'm not going to try to flash a rom with odin cause i need to keep the data on it. Lmk if you find anything out. Peace.
Click to expand...
Click to collapse
I don't care about the data, since I lost it already anyways. I would be willing to flash via odin, but didn't find anything useful. Sounds like you may have?

The Lich said:
I believe the next logical step would be to try reverse-engineering parts of the new kernel and look for exploitable bugs, rather than looking for work done on the subject by other individuals and attempting to classify them as the same thing.
Click to expand...
Click to collapse
I wouldn't even know where to begin with that, bit outside my technical expertise. Is it something you are familiar with? Or can you point me in the right direction?

Can I downgrade from the PD6 OTA? I am running 100% official. I see there are no tools for rooting 6.0.1, but can I odin down to a version of 5.1.1 that I can root? It's been a while since I have done that, and IIRC sometimes it's impossible to downgrade once you have upgraded. I don't care about Knox or Samsung Pay, losing those is fine.

Thread jacked! Haha
I heard you can, man. Check that 'Root 5.1.1 with a snag' thread that Metalcated started.
I think somebody mentioned you can. Usually you can't - you're right - but I don't think this bootloader was enforcing it. Worse comes to worst it'll just fail to ODIN it and you're stuck. No real risk of bricking. :good:
---------- Post added at 10:11 PM ---------- Previous post was at 10:08 PM ----------
Buko74 said:
I wouldn't even know where to begin with that, bit outside my technical expertise. Is it something you are familiar with? Or can you point me in the right direction?
Click to expand...
Click to collapse
I mean, a good hex editor would be a start.
Maybe like IDA Pro? I love IDA :3
You could probably scope out some good Android disassembly tools if you look.
Maybe checking the AOSP code itself?
Maybe look into the Android system images that you can download with the SDK?
Not sure. A bit out of mine too, but definitely an area of interest.

quarlow said:
Can I downgrade from the PD6 OTA? I am running 100% official. I see there are no tools for rooting 6.0.1, but can I odin down to a version of 5.1.1 that I can root? It's been a while since I have done that, and IIRC sometimes it's impossible to downgrade once you have upgraded. I don't care about Knox or Samsung Pay, losing those is fine.
Click to expand...
Click to collapse
Link: http://forum.xda-developers.com/showpost.php?p=67248899&postcount=420
Will be trying this on my G920A soon. (PD6)

Short answer: No.
Long answer: it's not public yet. I saw many people in other forums talking about a private method that allows them to root G920A 6.0.1 and untethered (unlike the one we have right now for 5.1.1). I do not have the files and I don't know if it's going to be released to the public. I hope one of the insiders leaks it soon because I don't wanna upgrade to 6.0.1 without root.

shichemt said:
Short answer: No.
Long answer: it's not public yet. I saw many people in other forums talking about a private method that allows them to root G920A 6.0.1 and untethered (unlike the one we have right now for 5.1.1). I do not have the files and I don't know if it's going to be released to the public. I hope one of the insiders leaks it soon because I don't wanna upgrade to 6.0.1 without root.
Click to expand...
Click to collapse
On XDA or some other site? And I wonder if the update I got last night (CPF1) would break that..

Any more news on this?? I know some people who really want to root their AT&T S6's

J38U5 said:
Any more news on this?? I know some people who really want to root their AT&T S6's
Click to expand...
Click to collapse
Not happening unless we get a leaked engineering bootloader from someone with connections to AT&T.
Sent from my SAMSUNG-SM-G920A using XDA-Developers mobile app

shichemt said:
Short answer: No.
Long answer: it's not public....
Click to expand...
Click to collapse
And how might one go about acquiring such private info? DM me please if you're in the know. Much appreciated.
Stay safe my friends. Stay •free•!

Not to jump on the "me too" train, but I'd like to know as well.
Sent from my SAMSUNG-SM-G920A using XDA-Developers mobile app

Bumppp. Any update plox would be appreciated. Just got an s6 hand-me-down WEE!

YOimCHRIS said:
Bumppp. Any update plox would be appreciated. Just got an s6 hand-me-down WEE!
Click to expand...
Click to collapse
Half a year has passed and still there ain't shiet. Abandon hope sir

Thanks man
jordaneagle220 said:
Wow what a blunt reply. Anyway I have also been probing the far corners of the clearweb for a root on this device. No luck. PingPong root doesn't support it, SRSRoot says that it rooted the phone, but it doesn't actually work. I'm not going to try to flash a rom with odin cause i need to keep the data on it. Lmk if you find anything out. Peace.
Click to expand...
Click to collapse
Thanks for the info, I might try SRSroot for the fun of it, but lmk if you find anything else, peace out

I will paypal anyone $100 to walk me through flashing a rooted firmware for aucu4bof3

I will fork it out, wish I did some research before buying an Att phone, even when it was listed unlocked. I have rooted every galaxy s 1,2,3,4 before this one, but this one Is a muther. I don't have time to painfully go through the research of bypassing this new baderass knox.

nihilist9 said:
I will fork it out, wish I did some research before buying an Att phone, even when it was listed unlocked. I have rooted every galaxy s 1,2,3,4 before this one, but this one Is a muther. I don't have time to painfully go through the research of bypassing this new baderass knox.
Click to expand...
Click to collapse
Try downgrading to Android 4.4.4 KitKat and then towelrooting it (towelroot .com/tr.apk)
Feel free to donate via Bitcoin! (Address: 1M8Mw8EUr8FSGVcMjpujoDmUvNFfURhVAB)

AptLogic said:
Try downgrading to Android 4.4.4 KitKat and then towelrooting it (towelroot .com/tr.apk)
Feel free to donate via Bitcoin! (Address: 1M8Mw8EUr8FSGVcMjpujoDmUvNFfURhVAB)
Click to expand...
Click to collapse
Do not do this it will brick your device!

NavSad said:
Do not do this it will brick your device!
Click to expand...
Click to collapse
How will it brick the device? I mean unless they're running Android 5 or 6 it should work fine, shouldn't it?

AptLogic said:
How will it brick the device? I mean unless they're running Android 5 or 6 it should work fine, shouldn't it?
Click to expand...
Click to collapse
OF3 is a lollipop firmware.

NavSad said:
OF3 is a lollipop firmware.
Click to expand...
Click to collapse
Ohhhh I didn't look at the baseband version.. Yeah it will brick your device. At this point you should take what I say with a grain of salt when I say you can't root lollipop and you should have better luck sticking to lollipop and waiting for someone to find a vulnerability in marshmallow.
Looks like that rooting is gonna have to wait a bit longer
Speaking of... Long shot here, but has anyone started looking for a vulnerability to exploit?

AptLogic said:
Ohhhh I didn't look at the baseband version.. Yeah it will brick your device. At this point you should take what I say with a grain of salt when I say you can't root lollipop and you should have better luck sticking to lollipop and waiting for someone to find a vulnerability in marshmallow.
Looks like that rooting is gonna have to wait a bit longer
Speaking of... Long shot here, but has anyone started looking for a vulnerability to exploit?
Click to expand...
Click to collapse
Just took a look online... It seems possible to downgrade to KK, what's the issue then?

AptLogic said:
Just took a look online... It seems possible to downgrade to KK, what's the issue then?
Click to expand...
Click to collapse
Where did you find this?

NavSad said:
Where did you find this?
Click to expand...
Click to collapse
https ://www.androidpit.com/how-to-downgrade-galaxy-s5-from-lollipop-to-kitkat

y'all not even capable of doing a little bit of searching?
http://forum.xda-developers.com/att...w-to-update-to-g900aof2-5-0-keeproot-t3149146
---------- Post added at 11:09 PM ---------- Previous post was at 11:08 PM ----------
I'm on OF3 lollipop 5.0 with root.

skyrocketeer said:
y'all not even capable of doing a little bit of searching?
http://forum.xda-developers.com/att...w-to-update-to-g900aof2-5-0-keeproot-t3149146
---------- Post added at 11:09 PM ---------- Previous post was at 11:08 PM ----------
I'm on OF3 lollipop 5.0 with root.
Click to expand...
Click to collapse
The OP requested instructions without preexisting root access. He has to downgrade to KitKat before rooting, and then he can do whatever.

AptLogic said:
The OP requested instructions without preexisting root access. He has to downgrade to KitKat before rooting, and then he can do whatever.
Click to expand...
Click to collapse
You cannot do that on our model.
Sent from my Galaxy S5 using XDA Labs

Rakuu said:
You cannot do that on our model.
Sent from my Galaxy S5 using XDA Labs
Click to expand...
Click to collapse
yup this is correct if you took the 5.0 OTA from Att, you cannot downgrade at all.

skyrocketeer said:
yup this is correct if you took the 5.0 OTA from Att, you cannot downgrade at all.
Click to expand...
Click to collapse
Why are people still talking about this? This info has been out for more than a year.

NavSad said:
Why are people still talking about this? This info has been out for more than a year.
Click to expand...
Click to collapse
lol because the OP Doesn't know this info

paypal me now.....i will tell you...i am the man who invented galaxy s5

nihilist9 said:
I will fork it out, wish I did some research before buying an Att phone, even when it was listed unlocked. I have rooted every galaxy s 1,2,3,4 before this one, but this one Is a muther. I don't have time to painfully go through the research of bypassing this new baderass knox.
Click to expand...
Click to collapse
I'll help ya buddy. I was new once too. Respond to this with an email address or Facebook I'd.

Solutions should be posted here. OP, if you ever discover the solution, you get 20€ from me.
http://forum.xda-developers.com/att...ing-progress-root-t3415142/page2#post67883520

Here's a detailed version of Munuz_ri's keep root tutorial.
http://forum.xda-developers.com/att...w-to-update-to-g900aof2-5-0-keeproot-t3149146
http://www.droidviews.com/install-rooted-lollipop-on-att-galaxy-s5-sm-g900a

raakaysh said:
Here's a detailed version of Munuz_ri's keep root tutorial.
http://forum.xda-developers.com/att...w-to-update-to-g900aof2-5-0-keeproot-t3149146
http://www.droidviews.com/install-rooted-lollipop-on-att-galaxy-s5-sm-g900a
Click to expand...
Click to collapse
Doesn't apply to this situation.
From first link:
"(Caution! Do not flash if you have taken the OC4, OF2, or OF3 ota updates) and root with TowelRoot, before continuing with the above process."
TowelRoot doesn't work here.
Second link:
"Make sure your AT&T Galaxy S5 is 100% stock Android 4.4.4 KitKat firmware."
So no.