How To Unbrick AT&T Galaxy S5 SM-G900A Soft-Brick Fix & Restore To Stock Firmware Guide - GalaxyS5Update

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How to Unbrick AT&T Galaxy S5 SM-G900A Soft-brick Fix & Restore to Stock Firmware Guide This guide is intended for those who got a bricked AT&T Samsung Galaxy S5 SM-G900A, this might help you to x and unbrick your phone and then restore it back to stock and or of cial  rmware.

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Create A Profile Now To ease your frustration on how to resolve your bricked AT&T Samsung Galaxy S5 SM-G900A that some how you ruined the right functionality OPEN of your device while you are installing a modi ed rmware and rooting. If your Samsung Galaxy S5 SM-G900A got bricked, then your Galaxy S5 SM-G900A device can no longer function like before it was  and this guided solution might help you especially that your AT&T Galaxy S5 SM-G900A  is now out of warranty and then spend a pocket-

incinerating cost to the service center just to x your bricked phone.

To do the unbrick, follow the simple guide. As long as you can access your AT&T Galaxy S5 SM-G900A Download Mode screen, then there’s a chance that this method of unbricking will work on your device, just be patient and give it a try. A ‘bricked’ on a device, like the Galaxy S5 SM-G900A, is caused by a corrupted rmware from your phone’s system. It won’t boot normally as what expecting. What are we going to do now is that we need to re-install the original rmware of your device by means of ashing using Odin Downloader tool, that is why we need to have the phone’s download mode access or if not this unbrick process will not help you x your Samsung Galaxy S5 SM-G900A.

Symptoms of a bricked AT&T Galaxy S5 SM-G900A Here are couples of issue that you might face and speculate how to do it on your own just to unbrick your device.

Soft-bricked 1. The phone boot up and shows the Samsung screen for a split second and then the device automatically turns off and even worst it will just stuck somewhere or hangs then followed by boot screen ‘Samsung’ logo. 2. The phone won’t POWER ON other than it just shows the Odin Download screen with yellow triangle and rmware update warning. 3. The phone keeps on restarting (with vibrations) after the Samsung logo appears. – Your phone’s capacity to function well can be recovered if you can still access your Samsung Galaxy S5 SM-G900A Download Mode screen – (Pressing VOLUME Down + HOME + POWER button, then Volume up).

Try to press that button on the given combination. If you can access the download mode option, then you’re apparently somewhat lucky. If this won’t work as designed then you are in big trouble in dealing with your bricked device. If this will work, there is a big chance that you can recover it by yourself.

Hard-bricked It refers to the phone as totally wedged, unresponsive or no visible signs of turning ON and somewhat not giving you the chance to breath knowing that you may avoided the worst of it, (paying the technician on his remarkable job). It doesn’t show anything like you are in a black hole and you can’t access the download mode screen. The only way out for this is by performing the next step. The sharp technicians called it JTAG ashing. To do this is by forcing to install the rmware back to the phone. The process is not too easy especially at rst hand you don’t have enough know-how on this process. This includes disassembling the phone with some soldering required and ashing by means of using a ashing device tool. Performing this method means that you cannot save your device all by yourself anymore. If you considered necessary to have your Samsung Galaxy S5 back to its performance level, the best way to do now is to bring your device back to your dealer. Give explanation that might encourage them to have your Samsung Galaxy Note 3 x for free or have an exchange for warranty.

How to Fix Bricked AT&T Galaxy S5 SM-G900A Flashing with original rmware or stock ROM Grab Odin asher and USB driver Odin asher – Odin3_v3.09 Grab USB Driver – USB Driver or install  Kies 3 Download AT&T’s Galaxy S5 SM-G900A original stock rmware from this page. Elija el stock 4.4.2 G900AUCU2ANCE ya que no hay ningún rmware disponible como la reciente actualización OTA G900AUCU2AND3, etc. Extraiga los archivos descargados y probablemente use winzip, winrar 7zip o cualquier herramienta de extracción para un archivo comprimido. Utilice Windows OS para PC o computadora portátil ya que este método no funcionará en Mac. Recargue la batería con el cargador de batería externo ya que no puede recargarlo dentro del teléfono ya que está bloqueado. Paso 1.  Ejecuta Odin en tu computadora. Paso 2. Reinicia tu Galaxy S5 SM-G900A en la pantalla del modo de descarga. Apáguela, una vez que se apaga por completo, mantenga presionados los botones 'HOME' + 'VOLUME DOWN' y presione el botón 'POWER' durante aproximadamente 2 segundos hasta que aparezca ¡ADVERTENCIA! Aparece la pantalla. Presione el botón 'VOLUMEN ARRIBA' para continuar o ingresar al modo de descarga. Paso 3. Conecte su teléfono Galaxy S5 SM-G900A a la PC utilizando el cable de datos USB suministrado. Luego, asegúrese de poder ver el teléfono "Agregado" en Odin log-cat o COM: La identi cación se convierte en color azulado una vez que se conecta el dispositivo. Paso 4. En las opciones de Odin, NO marque 'RE-Partition' SOLAMENTE Marque 'Auto Reboot' y 'Factory Reset Time' y nada más. Paso 5a. Destelle el archivo AP Solo sin perder datos de usuario

Si tiene algunos datos importantes que todavía están en su memoria Galaxy S5, entonces solo puede usar el archivo binario AP de un solo archivo, luego proceda más abajo y haga la copia de respaldo más tarde una vez que su teléfono haya regresado para iniciarse normalmente. Este proceso degradará su teléfono Galaxy S5 al antiguo rmware 4.4.2 G900AUCU2ANCE, pero al menos puede volver a empezar desde cero. Una desventaja de ashear solo el archivo binario AP_G900AUCU1ANCE es que no puede actualizarse a la actualización o cial de OTA, pero puede simplemente corregirlo mostrando los otros archivos como CSC_G900AUCU1ANCE y  CP_G900AUCU1ANCE. Ahora simplemente haga clic en el botón AP y cargue el archivo binario AP. Simplemente debería verse como esta captura de pantalla. "AP_G900AUCU1ANCE_964333_REV00_user_low_ship_MULTI_CERT.tar.md5"

Paso 5b. Destelle el rmware de stock completo sin la imagen Bootloader. El rmware de stock completo tiene una ventaja, ya que restaurará su teléfono de manera totalmente funcional, ya que puede recibir nuevamente la actualización de OTA. Si necesita volver a enrutar de nuevo más tarde, esto también es muy recomendable. Este proceso eliminará todos los datos almacenados de su teléfono ya que vamos a ashear las imágenes de fábrica completas, como  AP_G900AUCU1ANCE  ,  CSC_G900AUCU1ANCE  y  CP_G900AUCU1ANCE, menos la imagen del cargador que no se puede hacer debido a la restricción de seguridad del teléfono. Paso 6. Haga clic en "Inicio" para actualizar el rmware de stock. Paso 7. Espera hasta que termine de parpadear, es probable que veas un mensaje enorme que diga "¡PASE!".

Si el teléfono se reiniciará a su modo normal, entonces es su día de suerte. Si los síntomas de ladrillo aún persisten, consulte el siguiente método. No pierdas la esperanza de que todavía no hayamos terminado. Si de alguna manera verás un mensaje que dice "FALLÓ", simplemente tómate tu tiempo y repite todo el procedimiento de arriba a abajo. Intente volver a veri car todo, incluido el cable de datos USB, el puerto USB de la computadora y el controlador USB. Solo se produce un problema intermedio que causa la falla del parpadeo.

Si el teléfono se reinicia normalmente, entonces es una historia de éxito. A continuación, puede realizar el restablecimiento de fábrica si es necesario, esto resuelve problemas para el ciclo de inicio no deseado, atascado en el logotipo de la pantalla de bienvenida. He aquí cómo hacerlo. - Apague el teléfono y con gúrelo en modo de recuperación - Presione volumen "subir volumen, botones de inicio y encendido" - Una vez en modo de recuperación, realice una limpieza completa - Seleccione 'borrar datos / restablecer a fábrica'

Restaure la con guración APN de AT & T en Galaxy S5 SMG900A También se recomienda encarecidamente que una vez que haya asheado su teléfono con el rmware original, sus APN probablemente se borren y le cause problemas al conectarse a la red de datos, así que simplemente vuelva a ingresarlos manualmente. Para hacerlo, simplemente vaya a con guración, luego a redes inalámbricas y redes, luego a redes móviles, luego acceda a nombres de puntos, y luego presione menú y agregue

nuevas. Esto le dará una lista para ingresar en todas las con guraciones de APN para AT & T. Name: ATT Phone (Some might have PTA in place of Phone) APN: phone Proxy: Not set Port : Not set User name: Not set Password: Not set Server: Not set MMSC: http://mmsc.mobile(dot)att(dot)net MMS proxy: proxy.mobile.att.net MMS port: 80 MCC: 310 MNC: 410 Authentication type: None APN type: default,mms,supl,hipri,fota APN protocol: IPv4 APN roaming protocol: IPv4 Enable/disable APN: APN enabled Bearer: Unspeci ed If the problem of your device still exists, then at this point there is nothing we can do or add more but giving you a recommendation that you have to contact or visit your nearest service center to get it x. By the way, I can guide you about JTAG, but it requires a heck of tearing down the phone completely, a JTAG ashing toolkit and soldering skills. So, I guess it’s not applicable to share to everybody. It’s a technician job already. So, congratulations to those who successfully xed their bricked AT&T Galaxy S5 SMG900A by this method, and to those who did not make their device work at this moment, don’t lose hope. Try your luck again. Next time, be careful while modifying your precious AT&T Galaxy S5 SM-G900A. No one could stop you from unbricking your device, but extra safety measure is much better safe than sorry.

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47 THOUGHTS ON “HOW TO UNBRICK AT&T GALAXY S5 SM-G900A SOFT-BRICK FIX & RESTORE TO STOCK FIRMWARE GUIDE” unrootme OCTOBER 4, 2014 AT 11:28 PM

guys please help! I needed a stock rmware for my galaxy s5 to have it unrooted! i accidentally bought one from ebay without knowing. its an at&t SM G900AUCU2AND3. THANK YOU ALL SO MUCH!!!

Emily J. Fox OCTOBER 16, 2014 AT 2:28 PM

The G900AUCU2AND3 stock is unavailable.

jake JANUARY 4, 2015 AT 8:15 PM

Big thanks to the publisher of this page helped me a lot.

Gabriel JANUARY 18, 2015 AT 8:04 AM

Please make a stock rmware for the ng3

Markson JANUARY 19, 2015 AT 9:10 AM

I agree please do i really need it i bricked my ng3 at&t s5 phone and i cant use the other rmwares please please please make one quick

Emily J. Fox JANUARY 22, 2015 AT 5:42 PM

The G900AUCU2ANG3 stock ROM is to no avail… whilst there is a G900AUCU2ANG3 OTA.zip that can be sideloaded via stock recovery. I will see if I could nd someone that could convert that into an Odin ashable tarball. Try this method: This isn’t the 100% solution but should xed on recent Android 4.4.2, 4.4.4 and Android 5.0 updates – equipped with secured bootloader images that can be easily results into undesirable soft-bricks. 1. Flash the full stock stock NCE in Odin. However, the phone might just still stuck in Samsung logo and/or bootloop at this step (if you have a bricked ND3 and NG3 bootloader image). Just pray, if the phone could at-least can be rebooted into download mode and recovery mode, there is still a sign of hope. 2. Sideload the G900AUCU2ANG3 OTA update zip via recovery. 1) Copy it into your SD card. 2) Reboot the phone to stock recovery, (Volume Up, Home, Power keys) 3) Choose “Apply update from SD card” then locate the le and install”. Once it ashed successfully your phone’s bootloader should be ne. Now try to reboot and see if it could pass the welcome screen logo. Good Luck!

thatguy21lol JANUARY 22, 2015 AT 10:50 AM

PLease get for NG3 i bricked mine

Luiggi MARCH 28, 2015 AT 5:14 AM

Everything Pass but after rebooting, it got stock on a black screen and the LED light is blue, what should i do next?

Emily J. Fox MARCH 29, 2015 AT 6:36 AM

Your on one-step closer, use the single stock tarball in PDA.

Tony JANUARY 23, 2015 AT 5:56 PM

Thank you so much! Being trying to get OTA’s for months!!

sgtreadwell JANUARY 27, 2015 AT 5:12 PM

Where can I get the CP and CSC les?

Chente FEBRUARY 1, 2015 AT 8:30 AM

This will work…..I am using my galaxy s5 (g900a) right now. *Use winrar to extract all the les. (BL [I didn’t need the BL le.] AP, CP, CSC les.) *Make sure to charge the battery, your bricked phone may not charge your battery. *Reboot into stock recovery and factory wipe and partition cache. Good Luck

francisco FEBRUARY 25, 2015 AT 2:34 AM

I need my s5 g900a desbrick on ND3. But I try to G900AUCU1ANCE given version and I always fail. Help please.

Robert MARCH 13, 2015 AT 5:33 PM

Please i want to know if one is performing this task of bricking Samsung s5 must one be connected to internet before it works or it works without internet connection too?

Nethus

MARCH 19, 2015 AT 3:20 PM

Mine is now alright! …Thank you very much!!!

Vegas APRIL 11, 2015 AT 11:54 AM

Hi ALL! I did full restore to stock, all works and all greats except OTA =( It’s shows message “software update interrupted check back after 24 hours” Any solution for this?

Kevin APRIL 19, 2015 AT 8:00 PM

Vegas, The way I did a work around on that is to do a System Wipe/ Cache Wipe after ever update. It is a pain because you have to keep doing a basic setup but it will reset the counter.

Javier APRIL 24, 2015 AT 6:33 PM

Hi, my s5g900a got a softbrick so i ash following step 5a or 5b of but with both everything pass and after rebooting, it got stock on a black screen and the LED light is blue, and i can´t use my pone and i don´t know how to do

Emily J. Fox APRIL 24, 2015 AT 7:38 PM

What was the ROM/OS version/Build number your G900A have had before the brick occurred? Try to perform full wipe the data cache in recovery, then re- ash again..

Elisha Trice APRIL 25, 2015 AT 12:46 PM

I get a black screen with blue led?

Denis MAY 13, 2015 AT 6:50 AM

DID ANYONE FIX THE BLACK SCREEN WITH BLUE LED?

Jake MAY 30, 2015 AT 6:18 PM

Flash the kernel again. Fixed it or me! Took me hours to think of it. Kernel goes in the PA slot. http://forum.xda-developers.com/att-galaxy-s5/general/how-to-rootg900aucu2aoa1-4-4-4-2-3-2015-t3021120

joelstitch MAY 29, 2015 AT 6:06 PM

I also have the black screen with blue light. I need to x it asap and cannot gure out a solution.

Emily J. Fox JUNE 1, 2015 AT 7:57 PM

Head over here Joe: http://www.galaxys5update.com/ x-black-screen-withpulsating-blue-led-on-galaxy-s5-g900a/

Frank Castle AUGUST 11, 2015 AT 3:51 PM

Hi, I bought a Galaxy S5 Active of eBay and rooted it with TowerRoot. Everything went ne. I then decided to use this guide here to upgrade to Lollipop and keep the Root. http://forum.xda-developers.com/att-galaxy-s5/general/how-to-update-tog900aof2-5-0-keeproot-t3149146 Everything worked out until step 7. I am now stuck in download mode. Question is: Can I use the above mentioned method on the Active as well???

Thanks a lot!!!

Emily J. Fox AUGUST 11, 2015 AT 9:37 PM

No, it is for Galaxy S5 (SM-N900A) not for the S5 Active (SM-G870A). Try this one here. http://forum.xda-developers.com/att-galaxy-s5/general/how-to-update-tog870aof2-5-0-keeproot-t3161733.

kiro AUGUST 24, 2015 AT 11:18 PM

I do all steps with ashing md5 le but it fails always… 4.4.2 … My galaxy doesn’t go in recover mode… But it does let me go into download mode… Help I miss my baby galaxy s5 from atnt… What can I do to x it guys???

Gus SEPTEMBER 30, 2015 AT 3:24 AM

Exist a clean or original Samsung rmware for SM-G900A ???? Without AT&T. Heeeeellllppppp. Thanks

khalid OCTOBER 3, 2015 AT 6:25 AM

hi my device is Galaxy S5 G900A AT&T , rst i tried to root my device and after many times it failed but i got problem that it is now stuck on recovery mode (and USB Debugging seems deactivated ) and i tried to recover the lollipop for my devise using ODIN not succed , also KIES not recognizing my device so i couldn’t preform emergency rmware recovery , please advise me if somebody faced the same problem ! I tried to recover using the tool (software update and initialization ) in kies3 and after entering sn and model number (G900A) and upgrade was in progress but it also failed another question when the original stock lollipop rmware will be available ?

Coe JULY 2, 2016 AT 4:25 PM

http://forum.xda-developers.com/showthread.php?t=2785185

Aj NOVEMBER 15, 2015 AT 1:10 AM

Guys I need some serious help I have the g900a and every time we try to start the ash in Odin its saying failed we have done everything that we can. I am running lolipop 5.1.1 it updated somehow PLEASE HELP!!!!!

AJ NOVEMBER 15, 2015 AT 1:39 AM

GUYS PLEASE HELP ME!!!!!!! My dam SM-G900A did a software update to 5.1.1 softbricking it everytime i try to ash something from odin it keeps on failing i need it to try to get to 4.4.2 or if not just a working phone. PLEASE HELPPP !!!!!!!!!

Emily J. Fox NOVEMBER 17, 2015 AT 7:58 PM

It won’t work because of the bootloader locking policy. What exactly does it says? Try to reboot into recovery mode and then ash the stock OTA zip le. Try to locate these les here > https://www.android lehost.com/?w=search&s=G900A

avram MARCH 5, 2016 AT 1:29 AM

Hi all. Bought a used AT&T Galaxy S5 I found out the phone was rooted after the the AT&T over-the-air updates kept failing. I decided to try unroot. The Android version was 4.4.2, but i neglected to check if it was the original G900AUCU1ANCE as opposed to the newer G900AUCU2AND3 I tried the common Odin method with just the AP le from sammobile.com (which is the older G900AUCU1ANCE) – Odin failed Then I tried Odin with AP+CP+CSC from les, after googling this thread http://forum.xda-developers.com/show….php?t=2785363 – Odin passed but the

phone is SOFT-BRICKED S5 freezes while booting at the colorful Samsung logo, then goes dark except for a blue LED. However, I can still Download-boot and Recovery-boot. I then googled up that there are different versions of 4.4.2 http://www.galaxys5update.com/galaxy-s5-stock- rmware/ and that they don’t play well together. I also tried to side-load the AT&T over the air update mentioned by Emily J Fox in the comments of this vert page by loading the ZIP le on an SD card, but that route causes errors and quits. below is a dump of the download-boot screen: ODIN MODE PRODUCT NAME: SM-G900A SYSTEM STATUS: Of cial REACTIVATION LOCK(KK): OFF KNOX WARRANTY VOID: 0x0 QUALCOMM SECUREBOOT: ENABLE (CSB) RP SWREV: S1, T1, R1, A2, P1 SECURE DOWNLOAD: ENABLE UDC START Any ideas? Thanks Thanks

mbender SEPTEMBER 20, 2016 AT 9:45 PM

I have the exact same problem as avram…any suggestions? Tried unrooting a phone and didn’t notice the build number beforehand.

Maxwell MAY 25, 2016 AT 8:47 AM

Hello guys, So my phone s5, works great on lolipop 5.0,, which i bought on ebay, in about my model said SM-G900H, so i downloaded the matching 6.0.1 rmware and tried using odin to upgrade but it kept failing no matter what i tried, then i noticed something whilst in download mode, the phones model in download mode say smG900a but in the phones settings and about it says SM-G900H.. HOW IS THAT POSSIBLE? IS THE PHONE FAKE? WHEN I TRY TO CHECK FOR UPDATE, IT DOES SO THROUGH AN AT&T SERVER, THEN IT SAYS UPDATE INTERUPTED . PLS ADVICE. PHONE WORKS FINE THOUGH, THANKS

Zackaria Ouh MARCH 24, 2017 AT 10:06 AM

Hey buds. i’m Zackaria from morocco. i have the same problem with my samsung S5 that i bought used from a retailer. my samsung S5 says in phone info , it’s a G900f. When i enter download or recovery mode, it says it’s a G900A. it even has the AT&T Software update option. I used an app called phone info it says this: phone model : G900f PAD version : G900FZHU1AND1 Baseband version : G900AUCU2AND3 bootloader version : G900AUCU2AND3 Original CSC code : ATT CSC country : Usa / Us Device type : Klteatt So , i took the IMEI i get by dialing *#06# which is th same on the sticker under the battery and put it in IMEI checker it says my phone is a G900f that has in internal memory of 32 Gb. well , my phone has only a 16 Gb internal memory. now, i want to update my phone to marshmallow. does anyone here know what phone model do i have? what could be the problem with my phone’s info? and how can i x all this ?

SKILZWELL AUGUST 14, 2016 AT 10:29 PM

Hey, I bought s5active online unlocked att logo @ startup. It had kitkat4.4.4 installed. I set it up using the Sim card I was already using w/att gophone. I received all OTA

updates including lollipop 5.1.1. Then just the other day I started 2 get an update, I was SUPER HYPE bcuz I’ve been checking in & manually checking 4 months! Anyway it showed att symbol against black screen load up 2 100%. THEN “KERNEL” appeared in the top right corner of my screen! It then said “software not recognized by AT&T detected. Plz turn off & bring 2 nearest att store with this in the center of the message. I brought it, they said it was bricked.I explained I was broke, they got it working again & told me if it happens again to hold power/home/volume up. after this happened “custom” appeared on my startup screen w/ unlock symbol. AND THEY TOLD ME DO NOT TRY 2 GET MARSHMALLOW UPDATE OTA!!!! MY point is I want 2 know how 2 get my phone back 2 where I get all OTA updates AND ESPECIALLY WANT MARSHMALLOW! ! CAN ANY1 HELP? AND OR EXPLAIN WHY THIS SUDDENLY HAPPENED? I’M FREAKED OUT! I saved 4 a year 2 get this phone! I’m BROKE & just want my phone 2 work normally again. PLEASE HELP!! THANKS -JOE

Brando Franada SEPTEMBER 10, 2016 AT 7:37 PM

SMG900A i have x mine now im on marsmallow

Daniya Naqvi FEBRUARY 26, 2017 AT 9:14 AM

guys please help! I needed a stock rmware for my galaxy s5 to have it unrooted! i accidentally bought one from ebay without knowing. its an at&t SM G900AUCU4BOF3 but i want update of Marshmallow now

So an hamiche APRIL 9, 2017 AT 1:45 PM

I have a problem on my Galaxy G900a is that when I lower the brightness level the screen shakes and the image turns green if it pleases tell me how I can solve problem? Thank you in advance I appreciate your service.

Emily J. Fox APRIL 18, 2017 AT 5:28 PM

That S5 green icker at low brightness level issue have been resolved by an update. In your case it seems that you haven’t received any update yet and you are stuck in

Android 5.1.1, just may just manually update to the latest OS version. To manually update your phone just use the guide above but use the latest stock rmware.

Hugo AUGUST 2, 2017 AT 8:41 PM

Guys, my S5 got soft bricked out of nowhere, it kept rebooting when it wasn’t plugged in. It had the ANG3 rmware but I tried to use the ANCe rmware to x it via ODIN since it’s the only rmware they have here, but now it doesn’t even reboot. What can I do? I’m about to try what Emily said about upgrading via sd card but I don’t know if it will work

Emily J. Fox SEPTEMBER 5, 2017 AT 3:03 PM

Use 4.4.2 AND3, its available and it has the same bootloader with ANG3.

Miguel Lampiris AUGUST 20, 2017 AT 12:45 AM

I want to hopefully get straight in my head a couple of things. I have a Galaxy S% G900A. It was stuck in a reboot loop that nothing would x, up to doing a factory reset. So now I’m going to ash it. But in reading your directions, the only thing I don’t quite understand is am I supposed to use the original 2014 rmware, or the latest 2017 rmware, which the phone had been updated to during the last ATT update. I see you offer both in links here. Do I use the latest? Or do I use the original and then update the phone via ATT? Or do I use the original and update via more ashing? That seems to be my only question right now. Thanks in advance. A great site here.

Emily J. Fox SEPTEMBER 5, 2017 AT 3:14 PM

It’s been hard to determine which build version the phone runs before the softbrick occurred. So the best option is to use the latest release build as it is much safer to upgrade than to downgrade.

SB FEBRUARY 25, 2018 AT 5:26 PM

I had to use the BL le along with the other three and I used the latest Marshmellow Update in the link. Worked Awesome