AT&T S5 Brick help (PLEAASEE ASAP) - AT&T Samsung Galaxy S 5

Okay so I first rooted my 4.4.2 at&t g900a s5 with towelroot successfully. I then flashed a lollipop firmware with flashify directly from my phone and that firmware came with root. I didnt like lollipop so I flashed my orginal firmware (4.4.2) through odin and ended up sort of bricking my s5. When I turn it on, it goes in boot and makes the screen black and has a blue LED on top that stays on forever. I fixed the problem with this website:
http://www.galaxys5update.com/fix-black-screen-with-pulsating-blue-led-on-galaxy-s5-g900a/
I followed the steps and flashed the partition one first and got to the boot screen of the s5 and it had the lock symbol and said "custom" and paused there forever. I tried the modem one after it, but then the EXACT same thing happened with the partition one. All I want is to go back to stock or to lollipop or whatever, just a working phone. I tried factory resetting and wiping cache but nothing worked. PLEASE HELP ASAP

Hadi12317 said:
Okay so I first rooted my 4.4.2 at&t g900a s5 with towelroot successfully. I then flashed a lollipop firmware with flashify directly from my phone and that firmware came with root. I didnt like lollipop so I flashed my orginal firmware (4.4.2) through odin and ended up sort of bricking my s5. When I turn it on, it goes in boot and makes the screen black and has a blue LED on top that stays on forever. I fixed the problem with this website:
http://www.galaxys5update.com/fix-black-screen-with-pulsating-blue-led-on-galaxy-s5-g900a/
I followed the steps and flashed the partition one first and got to the boot screen of the s5 and it had the lock symbol and said "custom" and paused there forever. I tried the modem one after it, but then the EXACT same thing happened with the partition one. All I want is to go back to stock or to lollipop or whatever, just a working phone. I tried factory resetting and wiping cache but nothing worked. PLEASE HELP ASAP
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=3076803
Go to the OP and scroll to the notes section on post #1. In step 5 it has the NCE downgrade firmware. As long as you didn't take the OTA, the downgrade firmware will fix you. Flash it with odin 3.09 in the AP slot.

dirtydodge said:
http://forum.xda-developers.com/showthread.php?t=3076803
Go to the OP and scroll to the notes section on post #1. In step 5 it has the NCE downgrade firmware. As long as you didn't take the OTA, the downgrade firmware will fix you. Flash it with odin 3.09 in the AP slot.
Click to expand...
Click to collapse
I was having the same problem that OP had and your solution just saved me! Thank you so much!!! :good:

Related

HELP

Please help I tried to unbrick my phone with odin and everything went right
It says PASS but the phone on bootanimation logo goes black and stays that way
What should I do??????
marius1985 said:
Please help I tried to unbrick my phone with odin and everything went right
It says PASS but the phone on bootanimation logo goes black and stays that way
What should I do??????
Click to expand...
Click to collapse
Did you have anything else, like pulse blue light ? What software you flash on what phone?
Clicking from notecable N910A
marius1985 said:
Please help I tried to unbrick my phone with odin and everything went right
It says PASS but the phone on bootanimation logo goes black and stays that way
What should I do??????
Click to expand...
Click to collapse
If your phone is ATT S5,
Download the G900A_Downgrade_to_NCE.tar from here:
https://www.androidfilehost.com/?fid=23622183712464416
Use Odin 3.09 and flash in AP slot. Once it is done then take the OTA for NG3 then OA1
Thanks to @muniz_ri
Sent from my SAMSUNG-SM-G900A
norbarb said:
Did you have anything else, like pulse blue light ? What software you flash on what phone?
Clicking from notecable N910A
Click to expand...
Click to collapse
Yes the blue light pulse and the screen is off
marius1985 said:
Yes the blue light pulse and the screen is off
Click to expand...
Click to collapse
How long did you wait? If blue light is pulsing means phone is working. Try get to recovery mode and clear cache and davik.
marius1985 said:
Please help I tried to unbrick my phone with odin and everything went right
It says PASS but the phone on bootanimation logo goes black and stays that way
What should I do??????
Click to expand...
Click to collapse
I need more information what did you do that made you have to use Odin? What are you flashing and why? What tar did you use? Which version of Odin?
norbarb said:
How long did you wait? If blue light is pulsing means phone is working. Try get to recovery mode and clear cache and davik.
Click to expand...
Click to collapse
The light stays on, it pulse low to high light. Enter into recovery doesnt do anything. In odin 3.09 it says that PASS when I try to install the stock firmware 4.4.2 SM-G900A G900AUCU1ANCE and the installation was succesfull but when it is on bootanimation of SAMSUNG it freeze the light stays blue, it pulse, the screen goes black and stays that way??
Please let me know
OPOfreak said:
I need more information what did you do that made you have to use Odin? What are you flashing and why? What tar did you use? Which version of Odin?
Click to expand...
Click to collapse
I was trying to install a costum rom and before that I did an advance wipe than the installation fails. than try to go back to stock firmware but this happened.
The light stays on, it pulse low to high light. Enter into recovery doesnt do anything. In odin 3.09 it says that PASS when I try to install the stock firmware 4.4.2 SM-G900A G900AUCU1ANCE and the installation was succesfull but when it is on bootanimation of SAMSUNG it freeze the light stays blue, it pulse, the screen goes black and stays that way??
Please let me know
marius1985 said:
I was trying to install a costum rom and before that I did an advance wipe than the installation fails. than try to go back to stock firmware but this happened.
The light stays on, it pulse low to high light. Enter into recovery doesnt do anything. In odin 3.09 it says that PASS when I try to install the stock firmware 4.4.2 SM-G900A G900AUCU1ANCE and the installation was succesfull but when it is on bootanimation of SAMSUNG it freeze the light stays blue, it pulse, the screen goes black and stays that way??
Please let me know
Click to expand...
Click to collapse
One more question... Were you on 4.4.4 OA1?
OPOfreak said:
One more question... Were you on 4.4.4 OA1?
Click to expand...
Click to collapse
Yes that I installed from the third part of this quote
http://forum.xda-developers.com/att...to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120
marius1985 said:
Yes that I installed from the third part of this quote
http://forum.xda-developers.com/att...to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120
Click to expand...
Click to collapse
That is what I though OK what you need to do is go to the troubleshooting section of that thread and download the G900A downgrade to NCE rar file and extract the G900A downgrade to NCE tar md5 and flash that in the ap slot of Odin 3.09 that will take you back to bone stock NCE then if you want to get back to NG3 rooted follow the steps in this thread exactly the thread is locked but the links are still good.
http://forum.xda-developers.com/showthread.php?p=55133105
OPOfreak said:
That is what I though OK what you need to do is go to the troubleshooting section of that thread and download the G900A downgrade to NCE rar file and extract the G900A downgrade to NCE tar md5 and flash that in the ap slot of Odin 3.09 that will take you back to bone stock NCE then if you want to get back to NG3 rooted follow the steps in this thread exactly the thread is locked but the links are still good.
http://forum.xda-developers.com/showthread.php?p=55133105
Click to expand...
Click to collapse
That is what I said in the 3rd post!lol
Sent from my SAMSUNG-SM-G900A
Waiting4MyAndroid said:
That is what I said in the 3rd post!lol
Sent from my SAMSUNG-SM-G900A
Click to expand...
Click to collapse
I know I knew what you posted but I wanted to make sure he was coming from 4.4.4 I did the exact same thing a couple days ago coming from OA1 it's not a hard fix at all and I wanted to make sure he was clear on what he did.
OPOfreak said:
I know I knew what you posted but I wanted to make sure he was coming from 4.4.4 I did the exact same thing a couple days ago coming from OA1 it's not a hard fix at all and I wanted to make sure he was clear on what he did.
Click to expand...
Click to collapse
The downgrade to NCE (G900A_Downgrade_to_NCE.tar) that @muniz_ri created is a life saver. I have used it many times myself.
Sent from my SAMSUNG-SM-G900A
OPOfreak said:
That is what I though OK what you need to do is go to the troubleshooting section of that thread and download the G900A downgrade to NCE rar file and extract the G900A downgrade to NCE tar md5 and flash that in the ap slot of Odin 3.09 that will take you back to bone stock NCE then if you want to get back to NG3 rooted follow the steps in this thread exactly the thread is locked but the links are still good.
http://forum.xda-developers.com/showthread.php?p=55133105
Click to expand...
Click to collapse
It worked thank you so much my friend
marius1985 said:
It worked thank you so much my friend
Click to expand...
Click to collapse
You're very welcome
solid blue light
will your fix work for that cuz i have a solid blue light and it goes halfway throught the samsung logo then stops and goes black screen
horslvr said:
will your fix work for that cuz i have a solid blue light and it goes halfway throught the samsung logo then stops and goes black screen
Click to expand...
Click to collapse
Can you provide info on what caused the problem? Were you flashing a ROM? What att firmware are you on?
Sent from my SAMSUNG-SM-G900A
ok i was flashing the stock 4.4.2 rom back to the phone using odin 3.09and a firmware fromsamsung that they gave me , but it all started one day when my data signal went hay wire and then somthing glitch and atnt told me to reflash the 4.4.2 firmware
horslvr said:
ok i was flashing the stock 4.4.2 rom back to the phone using odin 3.09and a firmware fromsamsung that they gave me , but it all started one day when my data signal went hay wire and then somthing glitch and atnt told me to reflash the 4.4.2 firmware
Click to expand...
Click to collapse
It should work. Follow the directions mentioned above.
Sent from my SAMSUNG-SM-G900A

How I downgraded my baseband/fixed 4.4.2 lag

Background: I had updated to OA1 4.4.4 on s5 900A. I had some issues, so I decided to downgrade as described in the upgrade thread here: http://forum.xda-developers.com/att...to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120.
I would downgrade by flashing in odin the G900A_Downgrade_to_NCE.tar, as well as the G900A_ND3_Stock_Kernel, rerooting with towelroot, installing safestrap, and flashing one of the many 4.4.2 roms.
However, upon boot all of the 4.4.2 roms would be laggy, I would sometimes get a green/pixilated effect on the lockscreen when unlocking, and battery life would be sub par. I came across this app on play store:https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en , and even though I had downgraded the kernel, the bootloader read as OA1, even after flashing in Odin the ND3 stock kernel.
I believed that was causing the issues I was having, and was under the impression that the bootloader could not be downgraded. In a fit of frustration I did the following, and fixed the problem!
Solution:
This is not a step by step, but a rough approximation of what I did, if you need more detail, just ask.
1. I downloaded and put on my SD card G900A_NCE_to_NG3_OTA.zip https://www.androidfilehost.com/?fid=95916177934525665
2. In odin 3.09 I flashed G900A_Downgrade_to_NCE.tar https://www.androidfilehost.com/?fid=23622183712464416,
3. Also in the AP slot I flashed G900A_ND3_Stock_Kernel https://www.androidfilehost.com/?fid=23622183712464356
3. My phone was unrooted at this time. I let it boot up, downloaded the Phone INFO ★Samsung★ to the phone from the playstore, opened and my bootloader remained OA1. The camera was normal, and the boot was slow, so I was where I was many times before.
4. I shut down the phone, I rebooted holding volume up, power and start until I got to the standard, built in samsung recovery.
5. I located my download of G900A_NCE_to_NG3_OTA.zip, and flashed it via the samsung recovery. It took about 5 minutes.
6. The phone rebooted, and the phone info app said I had and NG3 baseband! It had downgraded! However, towel root was not compatible.
7. I flashed in odin G900A_ND3_Stock_Kernel again. Now towelroot rooted the phone. I installed busybox and superuser from the playstore, then safestrap again.
Now I can flash any of the 4.4.2 roms, none of the slowbooting, stuttering lockscreen or battery issues seem to be present, and Phone INFO ★Samsung★ has my baseband and bootloader as NG3.
All credit goes to muniz_ri, these are all his tools! I just stumbled across this method and thought others might benefit.
I can confirm this.
I was on OA1 after flashing OA1 OTA zip from recovery.
Later, I downgraded by flashing G900A_Downgrade_to_NCE.tar. Bootloader after this was OA1.
Flashed G900A_NCE_to_NG3_OTA.zip from recovery. Bootloader and baseband changed to NG3.
Bootloader and Baseband version was verified using 'phone info' app from play store.
yoonus said:
I can confirm this.
I was on OA1 after flashing OA1 OTA zip from recovery.
Later, I downgraded by flashing G900A_Downgrade_to_NCE.tar. Bootloader after this was OA1.
Flashed G900A_NCE_to_NG3_OTA.zip from recovery. Bootloader and baseband changed to NG3.
Bootloader and Baseband version was verified using 'phone info' app from play store.
Click to expand...
Click to collapse
does that ota have to be used if your on stock nce? im running alliance rom right now... also can it be flashed in SS?
iamthedj said:
does that ota have to be used if your on stock nce? im running alliance rom right now... also can it be flashed in SS?
Click to expand...
Click to collapse
I think it can be flashed only from stock ROM. This is stock OTA.
yoonus said:
I think it can be flashed only from stock ROM. This is stock OTA.
Click to expand...
Click to collapse
forgot i had a stock nce rooted backup so just started from there flashed the ota in sammy recovery and bam back to the old bootloader thanks a bunch man much appreciated
I think I will give this a try in the next few days. I'm on the rooted 5.0 by muniz_ri and I love Lollipop but I miss being able to flash custom roms.
MetalHead66 said:
I think I will give this a try in the next few days. I'm on the rooted 5.0 by muniz_ri and I love Lollipop but I miss being able to flash custom roms.
Click to expand...
Click to collapse
Likewise, just did it, I found with me, the OTA zip file would not install with the ND3 kernel installed. So I did the original odin downgrade to NCE, booted, then the OTA zip file, booted, Then the ND3 kernel Tar file in odin. Worked .Good luck:good:
so the nce to ng3 downgrade goes in the ap or BL?
Vortex_User said:
so the nce to ng3 downgrade goes in the ap or BL?
Click to expand...
Click to collapse
NCE. to NG3. OTA zip is done in original recovery by pressing power + volume up + home key. Then install update from Sd external.
i fixed my phone with this!
thanks!!!!!!!
maxirn05 said:
i fixed my phone with this!
thanks!!!!!!!
Click to expand...
Click to collapse
+1
was on Muniz 5.0, downgraded to xtreme dynamic kitkat. Still had oa1 bootloader, and was laggin really bad on boot.
Flashed this in stock recovery (wipes data part ) and reloaded my apps.
All seems to be well, without the need to go back to stock in between.
Thank you - this totally worked for me and got rid of the lag in my 4.4.2 ROM (XDK) as I had taken the upgrade to 4.4.4 way back when!
Hi,
do you do step 2 & 3 at the same time?
which field in Odin do you put the .tar file?
Thanks,
h
dave812 said:
Background: I had updated to OA1 4.4.4 on s5 900A. I had some issues, so I decided to downgrade as described in the upgrade thread here: http://forum.xda-developers.com/att...to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120.
I would downgrade by flashing in odin the G900A_Downgrade_to_NCE.tar, as well as the G900A_ND3_Stock_Kernel, rerooting with towelroot, installing safestrap, and flashing one of the many 4.4.2 roms.
However, upon boot all of the 4.4.2 roms would be laggy, I would sometimes get a green/pixilated effect on the lockscreen when unlocking, and battery life would be sub par. I came across this app on play store:https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en , and even though I had downgraded the kernel, the bootloader read as OA1, even after flashing in Odin the ND3 stock kernel.
I believed that was causing the issues I was having, and was under the impression that the bootloader could not be downgraded. In a fit of frustration I did the following, and fixed the problem!
Solution:
This is not a step by step, but a rough approximation of what I did, if you need more detail, just ask.
1. I downloaded and put on my SD card G900A_NCE_to_NG3_OTA.zip https://www.androidfilehost.com/?fid=95916177934525665
2. In odin 3.09 I flashed G900A_Downgrade_to_NCE.tar https://www.androidfilehost.com/?fid=23622183712464416,
3. Also in the AP slot I flashed G900A_ND3_Stock_Kernel https://www.androidfilehost.com/?fid=23622183712464356
3. My phone was unrooted at this time. I let it boot up, downloaded the Phone INFO ★Samsung★ to the phone from the playstore, opened and my bootloader remained OA1. The camera was normal, and the boot was slow, so I was where I was many times before.
4. I shut down the phone, I rebooted holding volume up, power and start until I got to the standard, built in samsung recovery.
5. I located my download of G900A_NCE_to_NG3_OTA.zip, and flashed it via the samsung recovery. It took about 5 minutes.
6. The phone rebooted, and the phone info app said I had and NG3 baseband! It had downgraded! However, towel root was not compatible.
7. I flashed in odin G900A_ND3_Stock_Kernel again. Now towelroot rooted the phone. I installed busybox and superuser from the playstore, then safestrap again.
Now I can flash any of the 4.4.2 roms, none of the slowbooting, stuttering lockscreen or battery issues seem to be present, and Phone INFO ★Samsung★ has my baseband and bootloader as NG3.
All credit goes to muniz_ri, these are all his tools! I just stumbled across this method and thought others might benefit.
Click to expand...
Click to collapse
hegel22 said:
Hi,
do you do step 2 & 3 at the same time?
which field in Odin do you put the .tar file?
Thanks,
h
Click to expand...
Click to collapse
Do step 2 and 3 separate. Use the ap slot for both
dirtydodge said:
Do step 2 and 3 separate. Use the ap slot for both
Click to expand...
Click to collapse
After i update G900A_NCE_to_NG3_OTA from sd card while rebooting i get samsung account locked. Each time i enter the correct samsung account and password it displays processing failed. What should i do??? please help
Praveenshrestha1991 said:
After i update G900A_NCE_to_NG3_OTA from sd card while rebooting i get samsung account locked. Each time i enter the correct samsung account and password it displays processing failed. What should i do??? please help
Click to expand...
Click to collapse
I'm not sure. Sounds like the reactivation was locked before you downgraded. I'm not sure how to fix that.

Samsung AT&T SM G900A stuck on samsung logo

PLease help,
i tried to do an update to AT&T sm g900a . my fw was 4.4.2 ng3. and i tired to flash nd3 and tried to flash oc1. but my phone stuck wit open padlock. then i flash stock partitions on oc4. then it could not on the phone.(i belive it automaticaly select re-partitions). then it only turn on upto samsumng log and stuck there. after 5 sec it reboot again.
i tried a stock rom flash with odin 3files Ap, cp & CSC. but it is not recovering. then i think i do erase the nand erase all.
i have also .pit file for SM g900A 16gb, and also tried to flash the pit file by checking re-partitions in odin3.
nothing work out. then i tried to flash single ap file but it is failed.
kindly give some advise,
Jstn Antony said:
PLease help,
i tried to do an update to AT&T sm g900a . my fw was 4.4.2 ng3. and i tired to flash nd3 and tried to flash oc1. but my phone stuck wit open padlock. then i flash stock partitions on oc4. then it could not on the phone.(i belive it automaticaly select re-partitions). then it only turn on upto samsumng log and stuck there. after 5 sec it reboot again.
i tried a stock rom flash with odin 3files Ap, cp & CSC. but it is not recovering. then i think i do erase the nand erase all.
i have also .pit file for SM g900A 16gb, and also tried to flash the pit file by checking re-partitions in odin3.
nothing work out. then i tried to flash single ap file but it is failed.
kindly give some advise,
Click to expand...
Click to collapse
Try this,
http://forum.xda-developers.com/showthread.php?p=60012961
Waiting4MyAndroid said:
Try this,
http://forum.xda-developers.com/showthread.php?p=60012961
Click to expand...
Click to collapse
hi thank you, i tried this but now it is stuck on galaxy s5 logo with unlocked padlock. and there no reboot , just stay the phone on. no way to switch off except take out the battery.
please advise
Mine was like this and I also tried the above to no avail....the only way I found around it was to take it in to ATT store and have them "re-flash the Lolipop update" Wiped my phone but it works, now I just have to wait (patiently) for root exploit for the OTA 5.0.
twocrows said:
Mine was like this and I also tried the above to no avail....the only way I found around it was to take it in to ATT store and have them "re-flash the Lolipop update" Wiped my phone but it works, now I just have to wait (patiently) for root exploit for the OTA 5.0.
Click to expand...
Click to collapse
thank you, any one have better idea other than this. can we do complete reflash the os on samsung sm g900a At&t?
please help
Jstn Antony said:
thank you, any one have better idea other than this. can we do complete reflash the os on samsung sm g900a At&t?
please help
Click to expand...
Click to collapse
i flashed full stock 4.4.2 nce but still it is stuck in the sammsung boot logo...
Jstn Antony said:
i flashed full stock 4.4.2 nce but still it is stuck in the sammsung boot logo...
Click to expand...
Click to collapse
Try factory reset from recovery.
Jstn Antony said:
i flashed full stock 4.4.2 nce but still it is stuck in the sammsung boot logo...
Click to expand...
Click to collapse
Which file did you flash
archie87 said:
Which file did you flash
Click to expand...
Click to collapse
i flashed 4.4.2 nce stock rom, by odin containing 4 files BL,AP, CP, CSC (BL didn't used)
i believed that it happened to me like stuck on Samsung logo at first time, when i flashed oc4 stock partitions to my 4.4.2 ng3 .
after that it never rebooted.
when i try to from sdcard it will say e/footer is wrong, something like that.
but somebody told me that i can adb and what is that ? it will help me or not?
kindly advise....
Jstn Antony said:
i flashed 4.4.2 nce stock rom, by odin containing 4 files BL,AP, CP, CSC (BL didn't used)
i believed that it happened to me like stuck on Samsung logo at first time, when i flashed oc4 stock partitions to my 4.4.2 ng3 .
after that it never rebooted.
when i try to from sdcard it will say e/footer is wrong, something like that.
but somebody told me that i can adb and what is that ? it will help me or not?
kindly advise....
Click to expand...
Click to collapse
Flash this file instead and you should be back to normal.
http://forum.xda-developers.com/att...w-to-unbrick-flash-to-stocknce-g900a-t3077652
archie87 said:
Flash this file instead and you should be back to normal.
http://forum.xda-developers.com/att...w-to-unbrick-flash-to-stocknce-g900a-t3077652
Click to expand...
Click to collapse
thank you i am trying to download this file. but i could not success due to bad internet. before i tried almost same single fie in the ap folder of odin. but it was not success.
but iwil try this and give you the updates...
Hi Archie
Big thank you, its great working Back to normal...
archie87 said:
Flash this file instead and you should be back to normal.
http://forum.xda-developers.com/att...w-to-unbrick-flash-to-stocknce-g900a-t3077652
Click to expand...
Click to collapse
Sweet! I was in the same boat and saw the post about getting stuck on the Samsung screen. This solution worked perfectly!
Thanks!

TWRP Recovery Issue N910T Lolipop

So I restored my phone back to stock lolipop via odin, flashed CF auto root and TWRP.
The issue that I am experiencing is whenever I try to flash any lolipop rom via TWRP it says it was successful .
When i try to reboot it shows samsung logo and then goes back. This happens every time since i flashed the stock rom.
I odin LP before for stock and did the correct steps and it worked before. Now i am not sure. Yea i flashed a kernal too and nothing.
any suggestion
Resolved my issue, i was being a total N00b, i was flashing a stock 4.4.4 odin lol, i guess i never flashed odin 5.0.1 before my bad. Disregard this, thanks
nofroyo said:
Resolved my issue, i was being a total N00b, i was flashing a stock 4.4.4 odin lol, i guess i never flashed odin 5.0.1 before my bad. Disregard this, thanks
Click to expand...
Click to collapse
Lol. It happens. I did that the other night. Was wayyyy too tired to be flashing anything in the first place!!! Glad you got it sorted.

Help with S5 Active SM-G870

I have a S5 Active that was rooted on 5.0 and I tried to unroot through SU and factory restore. Now im stuck at the at&t logo. I've downloaded just about every file and tried upgrading to 5.1.1 downgrading and nothing works. I know this is a long shot but is there anything i can do?
edit- tried flashing bootloader MD5 but odin keeps failing. Recovery says LRX21T.G870AUCU1BOC5
objection23 said:
I have a S5 Active that was rooted on 5.0 and I tried to unroot through SU and factory restore. Now im stuck at the at&t logo. I've downloaded just about every file and tried upgrading to 5.1.1 downgrading and nothing works. I know this is a long shot but is there anything i can do?
Click to expand...
Click to collapse
When that happened to me, I used muniz's methods to fix my G870A. Here's the link:
http://www.droidviews.com/update-att-galaxy-s5-active-to-lollipop-root-it-and-enable-wifi-tethering/
Before doing anything, try flashing the bootloader MD5 file using Odin, that could be the problem. If that doesn't work,go ahead and download the STOCK firmware for the G870A and flash it. This will take you back to 4.4.2 KK, but you can easily use muniz's method after that to get either rooted or unrooted Lollipop. Good luck!

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