08-30-2017 12:09 PM
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  1. mikaela73's Avatar
    I've tried three times to downgrade my wife's AT&T S5. It keeps failing in Odin. Here is the log:

    <OSM> Enter CS for MD5..
    <OSM> Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> G900AUCU1ANCE_G900AATT1ANCE_G900AUCU1ANCE_HOME.tar.md5 is valid.
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..
    <ID:0/004> Added!!
    <ID:0/004> Odin engine v(ID:3.1005)..
    <ID:0/004> File analysis..
    <ID:0/004> SetupConnection..
    <ID:0/004> Initialzation..
    <ID:0/004> Get PIT for mapping..
    <ID:0/004> Firmware update start..
    <ID:0/004> SingleDownload.
    <ID:0/004> aboot.mbn
    <ID:0/004> NAND Write Start!!
    <ID:0/004> FAIL! (Auth)
    <ID:0/004>
    <ID:0/004> Complete(Write) operation failed.
    <OSM> All threads completed. (succeed 0 / failed 1)

    Hopefully someone can tell me what I'm doing wrong here.
    04-12-2015 11:04 PM
  2. spottedbat's Avatar
    Thank you! I didn't realize Lollipop would make my life such a disaster! I use Llama app so that my phone does everything i need it to do without me having to turn things on and off and it helps me run my business and generally function in my day to day activities. Lollipop ruined it all! It wouldnt work. My gear 2 smart watch wasnt working properly either. I did the steps and although it got hung up on the start screen in a boot loop i was able to go to the carrier and they got it out of that and KitKat was back! Even though hours were wasting dealing with this and i had to customize a lot of my phone settings again, it was worth having the downgrade to KitKat. Now if i can remember not to "Update System" ever again...
    04-13-2015 06:20 AM
  3. gug317's Avatar
    So it's been 30 days since I downgraded and now the lollipop update notification is back with persistence. Anyone know a good way of getting rid of it?
    04-14-2015 08:42 AM
  4. android1991's Avatar
    TUTORIAL: Downgrade Samsung Galaxy S5 from 5.0 to 4.4 KitKat-untitled.png

    I can only find android 5.0 for that version....i need 4.4.2. Any help?
    04-15-2015 01:06 AM
  5. Abdul Samad11's Avatar
    Hi,
    I've had the Samsung s4 for a few days receiving and making call on the handset is hit and miss as to whether I can hear the call on speakerphone and normal, please help out
    04-16-2015 12:11 PM
  6. Abdul Samad11's Avatar
    some one please help me, how to solve my problem.....
    04-16-2015 12:16 PM
  7. Mom2Ninjas's Avatar
    Where is the file for the sprint variant? I do not see it when I follow the link above.
    04-16-2015 06:12 PM
  8. mavdoss's Avatar
    I've tried three times to downgrade my wife's AT&T S5. It keeps failing in Odin. Here is the log:

    <OSM> Enter CS for MD5..
    <OSM> Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> G900AUCU1ANCE_G900AATT1ANCE_G900AUCU1ANCE_HOME.tar.md5 is valid.
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..
    <ID:0/004> Added!!
    <ID:0/004> Odin engine v(ID:3.1005)..
    <ID:0/004> File analysis..
    <ID:0/004> SetupConnection..
    <ID:0/004> Initialzation..
    <ID:0/004> Get PIT for mapping..
    <ID:0/004> Firmware update start..
    <ID:0/004> SingleDownload.
    <ID:0/004> aboot.mbn
    <ID:0/004> NAND Write Start!!
    <ID:0/004> FAIL! (Auth)
    <ID:0/004>
    <ID:0/004> Complete(Write) operation failed.
    <OSM> All threads completed. (succeed 0 / failed 1)

    Hopefully someone can tell me what I'm doing wrong here.
    I have this exact same problem trying to downgrade from 5.0 to 4.4.2 firmware off of the official site. I have used multiple Odin versions, as well as two AT&T 4.4.2 md5 files. My phone is not rooted, I am trying to downgrade to 4.4.2 so I can root it.

    Phone says:
    ODIN MODE
    Product Name: SM-G900A
    CURRENT BINARY: Samsung Official
    SYSTEM STATUS: Official
    REACTIVATION LOCK(KK): OFF
    KNOX WARRANTY VOID: 0x0
    QUALCOMM SECUREBOOT: ENABLE(CSB)
    RP SWREV: S1, T2, R1, A3, P1
    SECURE DOWNLOAD : ENABLE
    UDC START
    SW REV CHECK FAIL : [aboot]Fused 3 > Binary 1

    Odin says the exact same thing as yours.
    04-17-2015 01:35 PM
  9. accountx23's Avatar
    I have this exact same problem trying to downgrade from 5.0 to 4.4.2 firmware off of the official site. I have used multiple Odin versions, as well as two AT&T 4.4.2 md5 files. My phone is not rooted, I am trying to downgrade to 4.4.2 so I can root it.

    Phone says:
    ODIN MODE
    Product Name: SM-G900A
    CURRENT BINARY: Samsung Official
    SYSTEM STATUS: Official
    REACTIVATION LOCK(KK): OFF
    KNOX WARRANTY VOID: 0x0
    QUALCOMM SECUREBOOT: ENABLE(CSB)
    RP SWREV: S1, T2, R1, A3, P1
    SECURE DOWNLOAD : ENABLE
    UDC START
    SW REV CHECK FAIL : [aboot]Fused 3 > Binary 1

    Odin says the exact same thing as yours.
    EXACT SAME PROBLEM as mikaela and mavdoss. And yes Odin is being ran as Admin, on Win8.1 x64. Registered to post this as I hope someone has a solution soon. In the meantime, 5.0 it is...
    04-22-2015 03:08 AM
  10. DavidTechGuy's Avatar
    EXACT SAME PROBLEM as mikaela and mavdoss. And yes Odin is being ran as Admin, on Win8.1 x64. Registered to post this as I hope someone has a solution soon. In the meantime, 5.0 it is...
    Same thing happening here... Wish I could downgrade.
    04-22-2015 06:45 PM
  11. Cramer4918's Avatar
    Thanks for making this Thread. I am having an issue with mine. I have the firmware loaded into Odin and my phone in Odin mode. The issue arrives when I plug my phone in. The computer tries to install a driver. It fails to install and nothing happens. Odin does not recognize my phone is plugged in. Anyone know what I've done wrong or what I need to do? Please let me know. Thank you in advance.
    04-24-2015 06:26 PM
  12. J Curtis Clark's Avatar
    It's strange, it's almost like Android Lollipop wasn't fully installed UNTIL I cleared the partition and factory reset; because now a lot of things are different, not just the colors. Like the way messages work and how things move and transitions and stuff. I'm so glad I tried this before going back to 4.4.4.
    I came here originally to learn how to roll back to 4.4.4, but I decided to try your approach first--what could it hurt? It worked exactly the way you described. Battery life is back, no more running hot, Endomondo no longer gets confused, and there are all these Lollipop features that I didn't see before (not that they're worth the headache, mind you). And the best part is that it won't keep bugging me to upgrade. Thanks!
    04-24-2015 07:19 PM
  13. DavidTechGuy's Avatar
    Thanks for making this Thread. I am having an issue with mine. I have the firmware loaded into Odin and my phone in Odin mode. The issue arrives when I plug my phone in. The computer tries to install a driver. It fails to install and nothing happens. Odin does not recognize my phone is plugged in. Anyone know what I've done wrong or what I need to do? Please let me know. Thank you in advance.
    Did you install the Samsung USB driver for mobile phones from the Samsung website? If not here's a link to it:

    Technical Documentation | SAMSUNG Developers

    Install that and all should be well.

    Hope this helps.
    Cramer4918 likes this.
    04-24-2015 09:15 PM
  14. Cramer4918's Avatar
    That was it! Thank you! Enjoying Kit Kat once again!
    04-25-2015 03:11 PM
  15. dewaani's Avatar
    So if anyone has a response to Mikaela73 and Mavdoss and Accountx23, that would help me tremendously. I followed the instructions exactly as written and I got the same exact message as these people got. I even thought maybe the cable was preventing it and tried regular USB cable, but same thing happened. I have Blue Samsung SM-G900A with AT&T.

    I'm very frustrated with Lollipop. Besides the ugliness and awful color schemes of the appearance, even my text messages aren't working well in Lollipop...it's looks on the phone like the next person is having a conversation with themselves because my texts can't be seen.

    Help us to succeed in getting Kitkat like the rest of you. You have no idea how desperate I am...I am ready to find someone locally to figure this out ASAP so if you're in South Florida and can fix my poor phone to a happy Kitkat, let me know!!!!!
    04-25-2015 08:34 PM
  16. Brianthelion26's Avatar
    I ran into the same issue on an AT&T Galaxy S5, trying to downgrade from 5.0 to 4.4.2. ODIN would fail on me too. From what I have gathered, it is not possible to downgrade, period, at this time. The bootloader is locked I believe and you cannot downgrade or even root if you are on a OTA 5.0 version. I semi-bricked my phone trying to downgrade and ended up having to download the 5.0 kernel and flash using ODIN to get my phone working again.
    04-26-2015 07:46 AM
  17. etemp1's Avatar
    Thanks Consv93, It works !!! However I would like to add the following steps in case someone loses his IMEI during downgrade :

    If the phone boots properly but the IMEI becomes NULL (Dial check: *#06#) and Baseband version (Dial check: *#1234#) becomes UNKNOWN and you lost your carrier signal. Do the following steps:
    1. Download the firmware of Lollipop (version 5) and extract it. Then extract the resulting .tar.md5 file again using WinRar to get new .bin and .img files.
    2. Open ODIN again and add modem.bin file as CP file in order to flash it to phone ROM
    3. Boot your phone in the download mode by holding Volume down+Home+Power buttons together
    4. Connect your phone to the PC. Then push Start in ODIN
    5. After it finishes flashing modem.bin, it will reboot and you will get your IMEI number and carrier signal again. However the Baseband version will be that of Lollipop not Kitkat.
    By the way, the downgrading methods here will not void your warranty. The boot loader flag will keep 0X0 after downgrading.
    04-30-2015 08:56 PM
  18. gdmercad's Avatar
    Downgraded my Samsung Galaxy S5 from 5.0 to 4.4 KitKat following the tutorial. Kept getting upgrade notifications, so I decided to wipe partition, wipe data/factory reset and try the Verizon 5.0 update. My apps and setting were uploaded to the cloud prior to the initial download procedure. After the 5.0 upgrade, the phone downloaded all the saved contacts, updated apps and settings from the cloud. No overheating, no battery issue, no lagging. Its been three days and all is still well. My feeling is that 5.0 Lollypop is best installed clean, based on my recent experience. Battery life averaging 22 hours with light to moderate usage.
    05-01-2015 04:39 PM
  19. lmiller001's Avatar
    Ok, I'm desperate, I've followed your instructions exactly, accept Odin will not download the firmware. Here's what it says exactly:

    <ID:0/004> Odin v.3 engine (ID:4)..
    <ID:0/004> File analysis..
    <ID:0/004> SetupConnection..
    <ID:0/004> Initialzation..
    <ID:0/004> Get PIT for mapping..
    <ID:0/004> Firmware update start..
    <ID:0/004> SingleDownload.
    <ID:0/004> aboot.mbn
    <ID:0/004> NAND Write Start!!
    <ID:0/004> FAIL! (Auth)
    <ID:0/004>
    <ID:0/004> Complete(Write) operation failed.
    <OSM> All threads completed. (succeed 0 / failed 1)

    Also, my Galaxy displays this in red:

    START [224,1440]
    SW REV. CHECK FAIL : fused : 7 . Binary : 6

    What am I doing wrong?
    05-07-2015 04:00 PM
  20. tvman802's Avatar
    Has anybody been able to succesfully block the lolipop download notice from verizon after restoring kitkat on their S5? I mean lose the nag notice completely.
    05-08-2015 12:04 PM
  21. Holley2583's Avatar
    I can't get the .rar file to download from any of the links here. It just says 10-11 HOURS to DL, but isnt actually doing anything. Ive picked the correct file for Verizon 4.4.4, kitkat. Anybody got a link for me please. Also, after DL'ING Kies and Odin my PC is not happy with all the extras...it would be worth it if I could get 4.4.4!
    05-12-2015 08:10 AM
  22. bshoop13's Avatar
    hello all I am new here and I have a sm-g900a. I found this very interesting because I was forced to upgrade lollipop and I hate it. I have tried all kinds of different cords and versions of odin and it immediately fails everytime. It's very frustrating.
    05-12-2015 09:13 PM
  23. DavidTechGuy's Avatar
    For everybody who is having problems downgrading on the G900A (AT&T S5), AT&T locked the S5's bootloader along with the Lollipop update, preventing us from downgrading.

    We just have to sit tight until somebody finds a way to downgrade on our model.
    05-15-2015 07:25 PM
  24. alex autry's Avatar
    what version were you on the first version of Lollipop (OA8) or the latest Version which is OC4? i'm reading posts of people being able to get their "Lollipop" back to KK but wish they'd include which version they were on. Thank you
    05-17-2015 02:25 AM
  25. to4raiden's Avatar
    Pretty lost right now.

    I have a s5 sm-g900v

    TRYING TO GO FROM LOLLIPOP TO KITKAT

    Can't find the firmware. The only one I know of is from Sammobile which there servers blow so it would take 8hrs.

    I downloaded another one but don't know if its the right one. its labeled as "G900VVRU1ANE9_G900VVZW1ANE9_VZW"

    Can someone please help.

    running lollipop 5.0

    BASEBAND VERSION
    G900VVRU1B0C4

    BUILD NUMBER
    LRX21T.G900VVRUIB0C4

    CONFIGURATION VERSION
    J13.SAM.SMG900V.1
    05-20-2015 09:46 PM
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