yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S 5] taadow1030:
[MENTION=7597286]AptLogic[/MENTION], great job with X ROM and root method. I was nervous, but your guide in the OP is foolproof. And the ROM is indeed much better than stock. Thanks again!
[AT&T Samsung Galaxy S 5] AptLogic:
Happy to help, and glad for the feedback!
[AT&T Samsung Galaxy S 5] ShaDisNX255:
Wait wait wait... so it is possible to root AT&T's Galaxy S 5 now???!!!

I will try this RIGHT AWAY! I had lost hope and here you go offering a heavenly solution to rooting this device. I really hope this works, will try later on once I see what baseband/kernel/firmware I have the phone on. All I know is that it's on Android 5.0

This should work, right?
[AT&T Samsung Galaxy S 5] xdanilva:
Yeah that's the only version of Android that works with root
[AT&T Samsung Galaxy S 5] ShaDisNX255:
Great! Been meaning to delete all this AT&T and Samsung bloat for a long time!
[AT&T Samsung Galaxy S 5] kuroi_tonbo:
Request for clarification/guidance

Edit 20170401 - Disregard. Opted for a less locked down phone/ROM than ATT's ROM.

[MENTION=7597286]AptLogic[/MENTION] : [background info - I recently purchased SM G900A (one of few models with removable battery). Previously had HTC, where OEM provided bootloader unlock code. Fedora Linux & HEIMDALL rather than Win 7/8/10 box and ODIN. Attempting to install custom ROM(s), leaning more toward cyanogenmod's successor, LineageOS. Haven't yet flashed anything on the G900A]

In looking at http://www.galaxys5update.com/galaxy-s5-stock-firmware/, this G900A appears to be running:

G900AUCS4CPA6	5.1.1 Lollipop	April 2016

update:

COI5 Rollback Zip (G900AUCU4COI5_ATT4COI5_v5.1.1_Repair_Firmware.zip) installed without issue, however Towelroot did NOT work. (Attempted TowelRoot phone isn't supported)

*experimental* firmware (COMBINATION_ATT_FA44_G900AUCU4AOF1_ATT4AOF1.zip) flagged an error, with instructions to visit an ATT store.

plan to attempt OF3 to see if towel root works there.

[for others on Linux w/ Heimdall]

https://github.com/Benjamin-Dobell/Heimdall/issues/209 Heimdall graphic front end doesn't work on Fedora. Follow ericzolf post for DNF install of package requirements. Following moismailzai / dol compile from source:

~ $

sudo dnf remove heimmdall*

mkdir temp

cd temp

git clone https://github.com/Benjamin-Dobell/Heimdall.git

cd Heimdall

mkdir build

cd build

cmake -DCMAKE_BUILD_TYPE=Release ..

make

cd bin/

sudo ./heimdall print-pit --verbose --no-reboot

if heimdall prints the pit, file flashing should work with like (adjust accordingly, I had a ~/temp dir, with heimdall, and ROM files, note the .. for parent dir)

sudo ../Heimdall/build/bin/heimdall flash --BOOT ./boot.img --CACHE ./cache.img.ext4 --MODEM ./modem.bin --APNHLOS ./NON-HLOS.bin --PERSIST ./persist.img.ext4 --RECOVERY ./recovery.img --RPM ./rpm.mbn --SBL1 ./sbl1.mbn --DBI ./sdi.mbn --SYSTEM ./system.img.ext4 --TZ ./tz.mbn --verbose

You should see a green status bar on the phone, and a % transferred in the shell. Try resetting the USB cable if you don't see these)

Once you can access the G900A's pit (partition information table), presumably, flashing should work.

edit: Q2 removed

Question 3: Locked bootloader

(for comparison) Coming from a Linux system, where SecureBoot was introduced in UEFI, SecureBoot (a locked bootloader) targets the kernel as the piece of software requiring a digital signature. In reading more of this posting followup, is this situation the same on the G900A? i.e. - the "lock" that ATT put in place restricts the G900A to *only* kernels signed by ATT's digital signature? and if that's the case, can other custom ROMs be run provided one keeps some version of a signed ATT kernel?

Question 4: As a follow up to Q3, which ROMs conform to having an ATT signed kernal, or, how does one put an ATT signed kernel into a different ROM?
[AT&T Samsung Galaxy S 5] ShaDisNX255:
Hey [MENTION=7820902]xdanilva[/MENTION] and [MENTION=7597286]AptLogic[/MENTION], so by what I've read is, I need to update from BOF2 (that is my baseband) to G900AUCU4COI5 and THEN follow the instructions listed in the OP, correct? Why do I have a feeling it's not as easy as I am making it sound? :confused:
[AT&T Samsung Galaxy S 5] xdanilva:
Use the newer method and not the old method
[AT&T Samsung Galaxy S 5] ShaDisNX255:
Newer method but it still update to COI5, right?

Sorry if it feels my questions are redundant, but I'm trying to be as careful as possible.
[AT&T Samsung Galaxy S 5] xdanilva:
Follow steps 1, 2 and 3 of the newer method then flash a custom ROM for this phone on Android development.
[AT&T Samsung Galaxy S 5] taadow1030:
How are you all using Flashfire for ROM backups? I tried and it said that I didn't have enough storage, even though all I had was the ROM.
[AT&T Samsung Galaxy S 5] AptLogic:
Works fine for me.... check if you're trying to back up to an external SD card, because that may be the issue.
[AT&T Samsung Galaxy S 5] samccfl99:
Wow, they want $850 (that's alot, might come down in a few months) for a new G950-F , which is a S8 with 5.8" screen and 64gb internal and sdcard. The battery is only 3000, thats not big. Comes with N. I wonder what development will be? Really, that's too much. A new 935-F will be $500. 5.5" screen.

Actually I checked out the Honor 6X [MENTION=7597286]AptLogic[/MENTION] was talking about. Sounds great for $250, but the forums for it are confusing...to me. Got anything to share about that phone [MENTION=7597286]AptLogic[/MENTION]?
[AT&T Samsung Galaxy S 5] AptLogic:
Well I haven't settled on which phone I'll be purchasing in the coming months, but it has good specs, 4GB RAM, the screen is about the size of the S8, and the battery is around 3400... but the battery is nonremovable and the phone doesn't come with NFC, which at this point is the main reason I'm trying to decide between that or a OnePlus.

Feature-wise if you're looking for a great phone with an active development community I'd definitely go for OnePlus, costs about half of what Sammy is asking for the S8, and you can pull around 7 hours screen on time with it..

Again, the battery isn't removable in this device either. In fact, I'm pretty sure the only mainstream company that sells flagships with removable batteries is LG, and I think they discontinued or are discontinuing those devices anyway.
[AT&T Samsung Galaxy S 5] samccfl99:
No sdcard on the OnePlus3T. gotta have a slot for that. I probably will reluctantly get a 935-F when they get under $500 in May or June and run Superman Rom with the Darkside theme (I hate was stupid Googley done with the WHITE in LP!). I have been running out of internal storage on my G900A. TMS5 3.0 takes a lot of room and I got the phone the way i want for over 2 years now. Mostly the freaking Cached Data takes almost 7GB . I do not know anything really about that. I cleared Delvick and Cache with FF and when it came back up, some apps were missing, no big deal. Still no room now again.
[AT&T Samsung Galaxy S 5] Jimmy4485:
AptLogic on #2 you instruct us to go to file manager... I am drawing blank, how do you find the "file manager"? Thank you for all you do!
[AT&T Samsung Galaxy S 5] xdanilva:
Go to the app manager and find file manager
[AT&T Samsung Galaxy S 5] AptLogic:
In the engineering firmware its called "My Files" and you can find it in the app drawer.
[AT&T Samsung Galaxy S 5] Geeunit:
Hello, my sm-g900a (5.1) began updating on its own so i ripped the battery. Is there any way to halt this? Will i be okay to root & flash Ressurection remixROM once it finishes that update? Also can someone please define OI5 for me? Thanks

EDIT: After updating, it still is on 5.1.1.
[AT&T Samsung Galaxy S 5] arrmo:
Hmmm ... tried the steps here, and all was fine until Step 3 (Back to the Future) => now I can't even boot to recovery, I get a message about "System software not authorized ...". Is there a fix for this?

Thanks!
[AT&T Samsung Galaxy S 5] Chuckles5150:
I usually setup a device without a sim card in it. I have been fortunate so far not to have one initiate an update on me.
[AT&T Samsung Galaxy S 5] Geeunit:
Thank you for the tip, do you think there will be an issue rooting & flashing with the 5.1.1 firmware?
[AT&T Samsung Galaxy S 5] Jimmy4485:
file manager

Thanks I'll try it.
[AT&T Samsung Galaxy S 5] inspired55:
Sam go into settings app manager open every app and clear the cashe only not data and you will free up a lot of space I do this every week or so and clear up over a gig of space. Peace my brother

SM-G900T Powered by Phoenix
[AT&T Samsung Galaxy S 5] Ra3zor0:
I'm guessing this doesn't work if you're running 6.0.1 on PH4 baseband, right?
[AT&T Samsung Galaxy S 5] AptLogic:
It does because you'll be flashing other firmwares as part of the root process, and you'll end up on OF3 prerooted
[AT&T Samsung Galaxy S 5] Ra3zor0:
Nice! I can finally do something with my old devices lol. I've got an at&t s4 but I can't do anything with that either cause updates. Ended up getting a 3t just so I could do cool stuff easily
[AT&T Samsung Galaxy S 5] AptLogic:
I might have an idea for the S4 but I don't know yet ;)
[AT&T Samsung Galaxy S 5] Jimmy4485:
failed

I was on the last step of3 rom and I got this message: "system software not authorized by AT&T has been found on your phone. Please turnoff your phone and go to the nearest AT&T store for help. The phone is bricked. What went wrong? Please help!
[AT&T Samsung Galaxy S 5] arrmo:
Hi,

I had a similar issue (S5) - you can recover by going to Download Mode, start carefully from Step 1. It does work!
[AT&T Samsung Galaxy S 5] Jimmy4485:
Thank you I just started doing that. The only explanation I have for this is the fact that when I was starting Flash Fire I could not find the settings to set

"Mount /system read/write". If you have any directions pleases provide them.
[AT&T Samsung Galaxy S 5] arrmo:
Yep, be very careful in FlashFire - it's a ZIP file ... so for Step 3, be sure you select "Flash ZIP or OTA", not "Flash firmware package". This is key, and you'll also get the setting for read/write!
[AT&T Samsung Galaxy S 5] Jimmy4485:
Thank you again. I Know what I did wrong now.

---------- Post added at 02:39 PM ---------- Previous post was at 02:11 PM ----------

Success! It worked fine. Thank you for all the help, especially for remind me about the Zip file on Flash Fire.
[AT&T Samsung Galaxy S 5] arrmo:
NP, glad it worked - enjoy!
[AT&T Samsung Galaxy S 5] JHARELIFY:
I can root with of3? Android lollipop 5.0? With this step ?

I can root with of3? Android lollipop 5.0? With this step ?

---------- Post added at 03:00 PM ---------- Previous post was at 02:46 PM ----------

I can root with lollipop 5.0 and OF3, following this step? Sorry for my bad english.
[AT&T Samsung Galaxy S 5] Jimmy4485:
It seems that you must downgrade to 015. Please read further down on the post where the link for 015 is located.
[AT&T Samsung Galaxy S 5] JHARELIFY:
015 whot? baseband?
[AT&T Samsung Galaxy S 5] sandreas:
Will flashing to OI5 or X-Rom or Apt-OS remove the ability to set the preferred RF Band with *#2263# ?

Do you know where in the system or modem partition or other firmware that service menu is at?

Thanks
[AT&T Samsung Galaxy S 5] JHARELIFY:
Where is the download link for OI5? Please help me, my english is very bad

Flash through odin ?.

What are the steps that I must follow

---------- Post added at 06:01 PM ---------- Previous post was at 05:59 PM ----------

Where is the download link for OI5? Please help me, my english is very bad

Flash through odin ?.

What are the steps that I must follow
[AT&T Samsung Galaxy S 5] sandreas:
All the newest instructions are on the First page of this thread.

In post#2 are the links to the files you asked about:

https://xdaforums.com/showpost.php?p=70011917&postcount=2

Please read the instructions in posts #1 and 2 before doing anything, you will need to understand the steps first.

Your english is fine. Learning this stuff before gaining the experience, is a challenge for any of us.
[AT&T Samsung Galaxy S 5] JHARELIFY:
No brick? X.X

Other question..

That brick my device? :(

you see People following this step and no brick?
[AT&T Samsung Galaxy S 5] AptLogic:
The worst thing that will happen is you will do it wrong somehow and have to start over. Just make sure to back everything up before you start and you'll be fine :). The instructions are pretty foolproof.
[AT&T Samsung Galaxy S 5] xltsp8:
qa1

If I'm stock non rooted on a s5 att with qa1 build will this work to get my phone rooted?
[AT&T Samsung Galaxy S 5] AptLogic:
Yes. Just follow the instructions from the beginning. Remember to back up your data!
[AT&T Samsung Galaxy S 5] tygirwulf:
So, I'm still on NG3 (KitKat 4.4.2) and rooted. Is there anything I need to watch out for, or can I just follow the procedure as stated in the first posts?
[AT&T Samsung Galaxy S 5] quazumox:
Link to OC4 Kernel?
[AT&T Samsung Galaxy S 5] artsa21:
If I have a stock non rooted samsung s5 G900A with the build OF3 do I have to downgrade to OI5 or just follow the instructions in the first page? I only want to root my device nothing else but im getting confused over the instructions because of the replies i am reading.
[AT&T Samsung Galaxy S 5] pinheaD420:
I am so completely confused at how people can't understand these simple instructions .... If u can't read and understand what you are reading you shouldn't be doing any of this ... The directions are very clear I thought.
[AT&T Samsung Galaxy S 5] AptLogic:
Major Advisory

No, this doesn't exactly relate to this thread, but I needed somewhere central to post this.

I will not be active on the XDA forums

at all

from Friday, April 7th 2017 to Saturday, April 15th 2017.

I will still be working on development for things like AptOS, but due to some prior plans that I have, I will not be able to check the XDA forums at all.

Thanks for understanding, and sorry for the inconvenience! :)
[AT&T Samsung Galaxy S 5] .nate:
Hi All, I followed the instructions, used Odin 3.11 to flash the "experimental firmware" in the first post. The I installed flashfire, supersu and towelroot. Ran towelroot and gained root. Ran supersu and updated bins. Used flashfire to install the G900A_OF3_Stock_rooted_ROM.zip, upon rebooting I get the "System software not authorized by AT&T bas been found..." error.

I figured out how to use odin to reflash back to the experimental firmware and retried all steps a second time with the same result. Any ideas what I am missing?
[AT&T Samsung Galaxy S 5] arrmo:
Posted this one above ... :). Make sure you flash as a ZIP file, not a firmware package.
[AT&T Samsung Galaxy S 5] electric101:
this work with the G870A?
[AT&T Samsung Galaxy S 5] PopTartKing:
Does anybody know if DejaVuAgain is still developing the offline root for this phone?
[AT&T Samsung Galaxy S 5] pinheaD420:
Electric101 questions been asked many many times already go read before posting ....
[AT&T Samsung Galaxy S 5] rragnell:
I used Odin 3.1.1 to flash the experimental firmware, rebooted but cannot find file manager to install the utilities in step 2. What am I doing wrong?
[AT&T Samsung Galaxy S 5] electric101:
i've dedicated more than 8 hours so far to reading threads.... and anytime i've seen anyone ask this basic question someone answers in a similar way.... which is no help. i did get one person to reply one time to the question about if these steps designed for the G900A non active will work with the active.... that answer was "i think so"

---------- Post added at 09:46 PM ---------- Previous post was at 09:43 PM ----------

I've attempted to install the "experimental firmware" *Combination_ATT_FA44_G900A* in the first step on my G870A Active but gives a "FAIL!" write operation failed using Odin 3.11. am i finally getting an answer to my question of "will this work with a G870A?" or am i missing some detail?
[AT&T Samsung Galaxy S 5] AptLogic:
Post #1000 :D

I am pretty sure I have outlined the fact that, due to the nature of the method being used, this DOES NOT work on the G870A.

OP has been updated to highlight this, I thought only putting "Rooting the G900A" in the thread title would explain that this doesn't work on the Active, guess not.
[AT&T Samsung Galaxy S 5] AptLogic:
As long as you've got a way to restore I guess you could try the 900 files
[AT&T Samsung Galaxy S 5] PopTartKing:
I'm sorry to intrude, but can you guys help us over here on the AT&T Galaxy Alpha forum? We just got root like you guys, but need some roms. I was hoping that maybe you can port some to our device?
[AT&T Samsung Galaxy S 5] pinheaD420:
The suspense is to much ....

Just finally got root and aliance rom 8.0 installed. I came from mm 6.0.1. Not missing it at all.... few force closes over last 6 hrs but aside from that running nice ! Thanks fella !

I will pay 100 usd to person who unlocks this damn bootloader I'm sure there's many more that would throw down ....could be a very lucrative project ...I mean at this point I'm not opposed to the idea of storming Samsung Corp offices ..
[AT&T Samsung Galaxy S 5] duscdragon:
I made a YouTube video tutorial based on this guide if anyone wants a visual aid to go along with this.
[AT&T Samsung Galaxy S 5] AptLogic:
Our devices use Toshiba eMMC chips. Unless we can find a way to change the CID and dump the entire controller firmware/ram for the chip, we can't do anything. Our hands are tied.

Even if we were to change the CID to a compliant code, we'd have to find an aboot image for a AT&T Developer Edition S5

and those don't exist so we're out of luck :/

Sorry.

Also the update is still coming... just waiting for a response from a device tester.
[AT&T Samsung Galaxy S 5] pinheaD420:
Apt your a dream crusher my friend ! Lol

Thank you the for the root ...I have missed adaway the last 3 years so much lol

---------- Post added at 05:02 PM ---------- Previous post was at 04:55 PM ----------

Was my next question ... about this "update" that's "much much better" then rooted mm ? I'm dieing over here !
[AT&T Samsung Galaxy S 5] AptLogic:
The update is currently in testing and my tester hasn't gotten back to me yet. Sorry to keep you guys waiting, working as quickly as I can.. believe me I'm dying to know if it works too.
[AT&T Samsung Galaxy S 5] 123omari123:
i downgraded 5.1.1 , everything is fine, but I think there is "power button bug", when i press power button long time it does not show me power off restart and etc. , it turns on and off screen several time , can it be repaired?
[AT&T Samsung Galaxy S 5] lingo2012:
Pm sent
[AT&T Samsung Galaxy S 5] 719c6:
I also have a G870A I would like to downgrade. Any idea on what the equivalent Active firmware would be and where to locate it? The G870a is soon to be a spare and would could make it a test phone if needed.

Thanks for all the help!
[AT&T Samsung Galaxy S 5] AptLogic:
All I can find are update packages. I'll take a closer look when I get home and if I find any ill tell you guys
[AT&T Samsung Galaxy S 5] IJoxer:
I'm not certain, but I believe the OJ3 5.1.1 update would be our equivalent for the OI5 firmware they use to downgrade, but they have the firmware in tarball format using the AP, BL, CP, and CSC files in Odin. Muniz_ris OJ3 stock rom doesn't seem to have the files need to create the AP, BL, CP, and CSC files for me to test, and I'm not sure where to find them, if they even exist. I was almost tempted to just try the 900 OI5, but I wouldn't have a clue how to recover being on MM. Odin may just fail and it'd be fine, but it's a risk.

Hopefully, somebody will come along that can point us in the right direction! :highfive:

Thanks a lot bud, I'm just itching to start tinkering with this phone again. I think after I eat, I'm going to do some more searching around the net as well.
[AT&T Samsung Galaxy S 5] renatortb:
I just want to thank you for all the effort and i'm hoping for the success of that mission.

So far i understand that maybe we have root for 6.0, that's right?
[AT&T Samsung Galaxy S 5] zappa41:
I can't wait to try this!!!! Thanks so much for getting this phone rooted!! But,I can't try to root and flash a new ROM until Christmas when I give my fiance her new phone. Just wanted to say, THANK YOU!!
[AT&T Samsung Galaxy S 5] AptLogic:
Okay guys just wanted to give you an update on the update I've been a bit hush-hush about.

My main tester shattered his phone screen (gg) and is out of action for a little bit while he waits for a new screen. I've taken it upon myself to begin testing a little thing I've been working on.

That little thing is a rooted, debloated, marshmallow ROM. I'm currently doing testing on it (working out a major bug where FlashFire reboots without flashing), and it WILL be out in time for Christmas :3

I'll probably start rolling out pre-beta to a couple people sometime in the next 5-7 days, and I'll be gradually adding features as I figure out what works and what doesn't.

Pretty pumped for this as it'll mark the end of 5.0-only ROMs, and hopefully pave the path for many many more MM and (maybe) N-based ROMs for the G900A in the future!

To everyone that's been saying thanks for the root and ROM guides, I'm happy to have helped. I love being able to delve into the unknown and finally see what this phone can do!

One last note.. to be able to get the most up to date info and developments, please make sure to hit the "Subscribe" button on the bottom of the thread. If you don't know what this does, it basically sends you email notifications when there are replies or posts in this thread, and I find it super duper useful during the day when the XDA labs app delays a little bit in notifying me.
[AT&T Samsung Galaxy S 5] Rllns05:
So I was kinda worried about doing this last night and decided to sleep on it, but did the downgrade, and installed kingroot 4.8.1 and it rooted no problem on the first try. rebooted about 14% and finished the rest after. I've done this twice with both times being successful first try.
[AT&T Samsung Galaxy S 5] AptLogic:
Nice. Always good to hear someone else has gotten root!
[AT&T Samsung Galaxy S 5] pinheaD420:
So just installed aliance 8.0 on buddy's g900a will not let me add Gmail account . Keep getting "Google play services has stoped" fc and then starts back at beginning ....any assistance would be greaaaaaat......
[AT&T Samsung Galaxy S 5] AptLogic:
Oh that doesn't sound too nice.. Try a factory reset and clear the cache, sometimes things can linger and they like to cause issues.
[AT&T Samsung Galaxy S 5] phillytemptation:
Seems like no one has tried this for the g870a yet?

Also, I'm sure some of you have saw this http://xdaforums.com/att-galaxy-s5/general/unofficial-list-roms-t3440214 Seems like there are a few more roms to try, including a MM rooted rom.
[AT&T Samsung Galaxy S 5] taadow1030:
Is there a way to extract the marshmallow kernel so that we can flash to a marshmallow ROM via Odin? There are some Note 7 ports that includes support for the 900f in the aroma installer. I'm willing to give up root in order to flash one of these.

Edit: please disregard, as I keep forgetting that you can't use Flash fire without root.
[AT&T Samsung Galaxy S 5] Rp2pilot:
Just switched to Oneplus3T a few months ago. It's a phenomenal phone for the price. They (One Plus), make it easy (even give you detailed instructions) on unlocking the Bootloader and flashing alternate recoveries. Stable release is currently Nougat 7.1, and they release Open Betas about once a month. No regrets here!
[AT&T Samsung Galaxy S 5] Lucairian:
I guess I'm dumb as bricks today. Which Rom do I have to be on to initiate this? Im currently on 0F3, luckily my mom didn't update her phone like usual.
[AT&T Samsung Galaxy S 5] a-key:
Hello everybody. Tell the beginner - there is a phone with this version of the firmware ( Samsung SM G900A Android 5.1.1 Build number LMY47X.G900AUCU4COI5 ). Can I use this method from the header to get it root? Thank you.