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    Samsung Laptops - Roll Back Bios Updates?

    Discussion in 'Samsung' started by isosunrise, Nov 12, 2012.

  1. urkopineda

    urkopineda Newbie

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    More Updates:

    I have tried flashing the original extracted .CAP ROM file and AFUDOS flashes correctly the file but when I touch/modify it (I think) it breaks Samsung's "signature" and throws 0x18 error, as I have mentioned before.

    I have tried patching a .CAP file that I converted from an edited .ROM file with a patching tool named "UEFIPatch" ( Here the source) but AFUDOS keeps giving me 0x18 error.

    I will try downgrading but I don't have any .CAP file for my Ativ Book 4 (NP470R5E). If someone has that .CAP and shares it, I will really apreciate it.

    Regards,

    Urko
     
    Last edited: Dec 19, 2014
  2. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    Thanks (again) for sharing your experience and advice in the unbricking thread!

    Regarding the inability to flash the modified BIOS, I wonder if SecureBoot settings might affect it. You probably already disabled SecureBoot, otherwise I'd suggest you try. What if you temporarily switch to CSM mode, might that make the BIOS more open to flashing?
     
  3. brightidea

    brightidea Newbie

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    If you're still after a solution, I have extracted the old images (02PQ.ROM and 03PQ.ROM) which enabled me to downgrade and re-enable SATA3 (some credit goes to you for simplifying the search process for me by listing the links to these images)

    sata3.png
    http://www.sammours.com/Backups/02PQ.rom.gz
    http://www.sammours.com/Backups/03PQ.rom.gz
     
  4. MartinFL

    MartinFL Newbie

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    Hi,

    I want to share my success with repairing the f2/f4 boot loop.
    My laptop is a NP530u3c and as I changed the bios setting to "no fastboot" und "CMS only" the bios became no longer accessible by pressing F2 . The well known bootloop happened.
    I was with my laptop at the samsung customer center and they told me, that windows damaged the bios (but I can't imagine how) and the hard-disk needs to be formatted and It costs about 100€ to repair it. I went home to save the data from the HD by using an external USB housing before I bring it back to samsung.
    But then I found this thread and started to experiment. I spent now nearly a full day, but I mastered it.

    This are the steps leading me to successfully recover the bios (without the need of the current bios-file)

    1.) Create a bootable usb-stick with rufus (rufus-1.4.12.exe) and gandalfs iso (Gandalf's Win8PE_x64.ISO) with partition type: MBR for BIOS or UEFI computers.
    2.) Boot with it, this should work.
    3.) Copy __SAMSUNG_Update directory, which I created as described in one of the articles above, to a second USB-Stick and stick it into the laptop.
    4.) cd into the directory and execute the following: "SFlash64.exe /cvar /patch", after a while the computer reboots

    That's it. F2 brings you back to the bios,

    hope it helps

    Martin
     
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  5. urkopineda

    urkopineda Newbie

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  6. Kamul

    Kamul Newbie

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    I just wanted to thank author of this thread for giving the way to get back to the older BIOS. Also I wanted to tell everybody interested, that I managed to downgrade BIOS on my Samsung NP350V5C-907PL laptop. Because in this laptop case __Samsung_Update folder in Temp doesn't appear, I did it this way:
    1. I found a file with bios update on Samsung site in way it is written in first post in this thread. Than I executed it.
    2. I went to Temp and I found in one of last modified folders file with bios update (called BIOSEC.ROM).
    3. I copied it to save place and I left the Samsung update application.
    4. I downloaded AfuWin64 program ( https://www.wimsbios.com/amiflasher.jsp), I run it and opened with it previosly extracted BIOSREC.ROM.
    5. Than I went to Setup page and I configured it as on the attached picture.
    6. I clicked Flash and that's it! The rest is exactly the same as for other models.
    It worked for me, but I don't take any responsibility for this method.

    screen.jpg
     
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  7. Hybridelectronics

    Hybridelectronics Newbie

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    Hi guys. Forry for my poor english. I've got a problem flashing bios to bricked np700z5c-s03uk. I'm using willem programmer but cannot flash .CAP file into eprom. Is there any known way to extract .rom or .bin file out of .CAP? Method mentioned on the begening of this thread gives me flash error.
     
  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    See if this thread includes the solution to your problem. The work done there enhanced our knowledge considerably.

    John
     
  9. Hybridelectronics

    Hybridelectronics Newbie

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    At this moment I'm not able to boot from any usb device. Samsung logo appears and then black screen. Tried with batteries connected and disconnected, and on charger. Still no luck. With hdd connected its trying to boot windows but stops on bsod, acpi bios error. I think eprom Programmer is the only way to unbrick it.
     
  10. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    That hurdle, too, is discussed in the thread linked by John.
     
  11. namaiki

    namaiki "basically rocks" Super Moderator

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    So, I have a Samsung NP700Z7c - S01us with Windows 8.1 upgraded from W7 installed and I have been having some issues with getting devices to run at proper USB 3.0 speeds. So I am nearly considering flashing a NP700Z7C - S01ub BIOS which should be the same computer as far as I know, except that it comes stock with Windows 8.1 installed except for one thinG. The S01US BIOS is 3MB, but the S01UB BIOS is 6mb..!

    Any thoughts?
     
  12. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    My first thought is to update the firmware for the USB 3.0. It's probably Renesas (maybe one of these -you will have to do some research) but I recall that I had some USB 3.0 issues on my Series 9 of similar vintage to the Z7C that were fixed by the firmware update.

    Samsung had bundled a firmware update in with one of the earlier USB 3.0 driver updates but then omitted to issue any further updates when they were released.

    John
     
  13. namaiki

    namaiki "basically rocks" Super Moderator

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    It's an Intel USB 3.0 chipset. Their support website doesn't feature any updated firmware for their own USB 3.0 controllers and suggests to update the BIOS - though I can't really see how they are related. I do wonder if the Samsung BIOS flasher has any checks in place to confirm if the BIOS has flashed correctly.

    I don't think I will do it though. I already tried rolling back to the older bios version P02AAE from P06AAE and that didn't work out very well... While I was able to enter the BIOS and confirm that the correct BIOS version was flashed, the computer would freeze on the Windows logo booting up. I put in an older hard drive which luckily resumed successfully from hibernate back into Windows 8.1 where I flashed P05AAE which is the latest linked version listed in the document on the first page of this thread. The Samsung automatic BIOS updater program detected the wrong BIOS when tried to use it to update from P02AAE which is quite worrying (BIOS corruption of some sort?) which is the reason why I had to manually download P05AAE.

    Anyway, as rolling back the BIOS was not successful for me, I suppose that crossflashing from AAE to ABP would be... probably a bad idea.
     
  14. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    The Intel USB controller might be managed via the chipset software. Are you using the latest chipset driver?

    I would be extremely wary of cross-flashing the BIOS. Samsung introduced the AB series with the Windows 8 versions of notebooks because they found that they couldn't update the AA series to give the required UEFI support (one reason running Windows 8 on the Windows 7 Samsung notebooks has more than its fair share of problems as you are discovering).

    John
     
  15. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    If the older BIOS caused that many problems (assuming it flashed successfully) I wonder if there is something else wrong. You already tried a new clean install of Win8.1, right?

    I seem to recall there were some hardware differences between the xxUS and the xxUB models. But mostly I would expect the biggest difference between the AAE and ABP BIOS families to be that the latter has a full-blown UEFI and SecureBoot implementation (with the bricking risks carried by that) while the former has only the simple UEFI Boot toggle.

    As I mentioned elsewhere, I had some intermittent USB3 disconnects on my older Sandy Bridge NP700Z3A, which went away on Win8.1. I later switched back to my Win8 installation for lower latencies, but that's another story :D
     
  16. namaiki

    namaiki "basically rocks" Super Moderator

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    Thanks for your suggestions. I was using the Intel chipset driver that Samsung has supplied via SW Update, but the Intel USB 3.0 driver doesn't install unless I manually select it in Device Manager. Same with the latest Intel chipset drivers.

    If there are hardware differences between the S01US and S01UB, I imagine that the size difference of the BIOS and also the hardware differences would be too large to make the BIOS compatible. I really don't think they would let so much free space in the BIOS stay unused (that 3MB vs 6MB filesize). I think it is highly unlikely that I will try to force flash the ABP BIOS.

    I did notice that if I plug in my Logitech wireless mouse into the USB 2.0 port near the front on the right side of the computer that there is a higher chance of getting USB 3.0 speeds on the USB 3.0 ports.

    Still a bit fiddly for now but it's usable. I have AS SSD benchmark on hand so I can do a quick speed test if I'll be moving any large files.

    Thanks again.
     
  17. pps2003

    pps2003 Newbie

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    hi all a have Samsung 900x4c -a01ru
    I need bios file, but my notebook is down and I cant download bios file
    can you download bios file and share it?

    thank you
     
  18. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    You can download the BIOS on any computer using the links provided by @isosunrise in the opening post of this thread.

    But you need to know which BIOS "family" your laptop uses -- the so-called Platform ID. On most models (though not all) it is the last three letters of the BIOS version. I believe Win7 versions of the NP900X4C (ie models that came with Win7 originally) use the AAC family, while Win8.x versions use the ABK family. But please wait for another owner of these models to confirm.

    Once you have the correct BIOS Platform ID, you insert it in the following link to find out the latest version update available from Samsung and its exact filename.

    Code:
    http://sbuservice.samsungmobile.com/BUWebServiceProc.asmx/GetContents?platformID=AAC&PartNumber=AAAA
    For AAC family (Win7 models) that gives the following link, which shows the latest BIOS update file as ITEM_20131127_21276_WIN_P07AAC.exe:

    http://sbuservice.samsungmobile.com/BUWebServiceProc.asmx/GetContents?platformID=AAC&PartNumber=AAAA

    For ABK family (Win8 models) it gives the following link, which shows the latest BIOS update file as ITEM_20131114_21268_WIN_P10ABK.exe:

    http://sbuservice.samsungmobile.com/BUWebServiceProc.asmx/GetContents?platformID=ABK&PartNumber=AAAA

    Once you have the filename of the BIOS update you want, insert it in the link below to download that file:

    Code:
    http://sbuservice.samsungmobile.com/upload/BIOSUpdateItem/ITEM_20131127_21276_WIN_P07AAC.exe
    In other words, to download the latest AAC BIOS, use the link below:

    http://sbuservice.samsungmobile.com/upload/BIOSUpdateItem/ITEM_20131127_21276_WIN_P07AAC.exe

    And to download the latest ABK BIOS, use the link below:

    http://sbuservice.samsungmobile.com/upload/BIOSUpdateItem/ITEM_20131114_21268_WIN_P10ABK.exe

    All of this is described in @isosunrise's guide in the opening post, but many members keep asking and seem to have trouble doing it. His guide also explains how to extract the contents of the BIOS update file.

    @pps2003: In your case getting the BIOS file and extracting its contents is merely the first step in reviving the dead laptop.

    Un-bricking

    The extracted flash utility (SFlash64/32 or WinFlash or afuwinx64) can be used with the steps in this post to clear NVRAM on units that are not completely dead and which can still be made to boot Windows or WinPE. That post is in our main un-bricking thread, linked below:

    http://forum.notebookreview.com/threads/samsung-series-7-np700z5c-s03ca-my-last-hope.762595/

    The extracted ROM file itself (or CAP file for some BIOS versions) can be used with an (E)EPROM burner to re-flash a BIOS chip in cases of complete bricking. There are a few examples of that described earlier in this thread. There is also one in the main un-bricking thread (starting here).

    Finally, a (very) few members have been able to use the ROM/CAP file for an Emergency Flash, which can be used on units that are not completely dead, but which cannot be made to boot anything. Member @urkopineda describes that here (in the main un-bricking thread) and here (in this thread). It's a great approach if you can get it working, but so far @urkopineda is the only confirmed success I have seen in the Samsung forum.

    Rolling back to earlier BIOS versions

    For those "merely" looking to roll back to an early BIOS on an otherwise working unit, the utility posted by member @osfrolov in this post will let you search for all BIOS versions in a date range with a given Platform ID (BIOS family). Use that with the the steps given by @isosunrise in the opening post of this thread to force flashing of the earlier version.

    Since BIOS rollback (rather than un-bricking) is the actual topic of this thread, there is much more discussion about it in other posts here.
     
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  19. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    As an X4C owner I can confirm the AAC BIOS for the X4C notebooks shipped prior to the release of Windows 8 and ABK for the notebooks shipped with Windows 8. [Note that the same BIOSes apply to the X4D and I believe, the X3C / X3D.]

    John
     
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  20. pps2003

    pps2003 Newbie

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    on sams 900x4c

    WinFlash.exe P06AAC.rom /v /cs /sd /sv /svs
    onboard bios not award bios
    afuwinx64 P06AAC.rom /p /b /n /e /r /x
    its not working, 46 error
    haw downgrade bios from P07AAC to P06AAC?
     
  21. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Did you closely follow the guidance in the first post in this thread? I would expect the procedure for the X4C to be very similar to those for the X3B.

    John
     
  22. pps2003

    pps2003 Newbie

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    yes i do

    c:\>cd c:/1
    c:\1>afuwinx64 P05AAC.rom /p /b /n /e /r /x
    +---------------------------------------------------------------------------+
    | AMI Firmware Update Utility v5.05.04 |
    | Copyright (C)2013 American Megatrends Inc. All Rights Reserved. |
    +---------------------------------------------------------------------------+
    46 - Error: Problem getting flash information.
    c:\1>
     
  23. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    What does the "dir" command list when you are in c:\1> ?

    Does it include afuwinx64.exe?

    It it is there (and also P05AAC.rom) then make sure that you are running cmd As Administrator.

    John
     
  24. pps2003

    pps2003 Newbie

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    Microsoft Windows [Version 6.3.9600]
    (c) Корпорация Майкрософт (Microsoft Corporation), 2013. Все права защищены.

    C:\Windows\system32>cd c:/

    c:\>cd c:/1

    c:\1>afuwinx64 P05AAC.rom /p /b /n /e /r /x
    +---------------------------------------------------------------------------+
    | AMI Firmware Update Utility v5.05.04 |
    | Copyright (C)2013 American Megatrends Inc. All Rights Reserved. |
    +---------------------------------------------------------------------------+
    46 - Error: Problem getting flash information.

    c:\1>dir
    Том в устройстве C не имеет метки.
    Серийный номер тома: B623-6DCB

    Содержимое папки c:\1

    12.05.2015 11:57 <DIR> .
    12.05.2015 11:57 <DIR> ..
    12.05.2015 11:51 729 200 AFUWINGUI.EXE
    12.05.2015 11:51 1 099 AFUWINGUI.txt
    12.05.2015 11:51 370 800 AFUWINx64.EXE
    12.05.2015 11:51 1 104 AFUWINx64.txt
    12.05.2015 11:51 15 640 amifldrv64.sys
    12.05.2015 11:56 2 688 DebugAppLog.txt
    12.05.2015 11:56 3 145 728 P05AAC.rom
    12.05.2015 11:56 1 544 363 P05AAC.rom.gz
    12.05.2015 11:51 4 370 readme.txt
    12.05.2015 11:51 900 readme_afuwin.txt
    12.05.2015 11:56 15 920 SBIOSIO32.sys
    12.05.2015 11:56 8 157 SBIOSIO32.sys.gz
    12.05.2015 11:56 18 000 SBIOSIO64.sys
    12.05.2015 11:56 8 744 SBIOSIO64.sys.gz
    12.05.2015 11:56 295 424 SFlash32.exe
    12.05.2015 11:56 146 243 SFlash32.exe.gz
    12.05.2015 11:56 278 528 SFlash64.exe
    12.05.2015 11:56 142 512 SFlash64.exe.gz
    12.05.2015 11:56 130 128 WinUpV01_10.exe
    12.05.2015 11:56 51 997 WinUpV01_10.exe.gz
    12.05.2015 11:56 112 544 WinUpV10_ENE.exe
    12.05.2015 11:56 49 593 WinUpV10_ENE.exe.gz
    12.05.2015 11:56 180 224 xmllite.dll
    12.05.2015 11:56 88 684 xmllite.dll.gz
    24 файлов 7 342 590 байт
    2 папок 199 368 167 424 байт свободно

    c:\1>
     
  25. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Thanks. The directory listing confirms that the files are where they are expected to be.

    Perhaps something is blocking afuwinx64 from either reading the BIOS or loading the ROM file. Make sure you are running cmd As Administrator and also disable your anti-virus.

    I can't find any help for afuwinx64 that explains the switches. You can try running afuwinx64 /h to see if that gives some simple help. You can also try running just afuwinx64 without any switches and see if it works as shown here.

    John
     
  26. spike888ph

    spike888ph Newbie

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    i need help i need the bios dump for the samsung NP270e4e-k09ph

    Any leads?

    thanks in advance
     
  27. Zyklon

    Zyklon Notebook Enthusiast

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    I believe one other people has encountered this error "Error: Driver fail while locating SMM service" in this thread but I'm not sure if he/she resolved it.

    I have a NP300E5E trying to reboot/reload my BIOS using the latest "ITEM_20140926_21430_WIN_P08RBD.exe" and an older "ITEM_20130102_927_WIN_P02RBD.exe". P02RBD.cap is the file present in that bios update, along with winflash. I also tried the earlier P01RBD file. I'm using cmd in administrative mode and I still get the error.

    Has anyone else fixed this error or bypassed it?
     
  28. spike888ph

    spike888ph Newbie

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    Looking for the bios file for this model (bios dump)

    Samsung 905s NP905S3G-K02ph

    Any help would be appreciated so much.
     
  29. Wizardkoer

    Wizardkoer Newbie

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    I have no idea how to find my laptop's BIOS file so someone please help me?
    My one is Samsng Series 5 NP540U4E-K01AU
    I need the BIOS update file.
     
  30. Wizardkoer

    Wizardkoer Newbie

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    I found my BIOS files but I get 'Error Unable to Start Secure flash Session'
     
  31. Wizardkoer

    Wizardkoer Newbie

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    I get this on my NP540U4E-K01AU in cmd:

    Reading flash ............ done
    Secure Flash enabled, recalculate ROM size with signature...
    - FPS checksums ......... ok
    Loading capsule to secure memory buffer ... done
    18 - Error: Unable to start a Secure Flash session.

    WTF? I tried some of the previous posts on how to fix this but didn't work.
     
  32. diablillomex

    diablillomex Newbie

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    I have the same issues, but I can't acces windows, I tried gandalf's win7Pe and Hiren's BootCD Mini XP to run the commands but during the booting my laptop shutdown. But if I boot the laptop with a freedos OEM CD, the pc can be working for hours.
    I want to try the commands

    sflash64 /n /s /sa /ips /file 15FD.rom ===> my .rom file
    or
    sflash64 /cvar /patch

    but i need to flash the bios with freedos.

    I trust in your wisdom ..... I've tried with Flashit (which is the tool for InsideH2O bios according internet) with negative results and FPT tool (according bios-mods.com) but still remain same issue.

    SAMSUNG SERIES 7 NP7005B-S01UB
    BIOS VERSION 15FD
    MICOM VERSION 15FD

    I'm stuck with serveral messy ideas.

    UPDATE:

    AFTER SEVERAL REBOOTS, MY LAPTOP BOOT INTO MINI WINDOWS XP (Hiren's BootCd)
    BIOS VERSION 14FD
    MICOM VERSION 15FD

    HELP ME WITH MICOM DOWNGRADE !!!

    Have a nice day !!
    Sergio E.
     
    Last edited: Aug 14, 2015
  33. Wizardkoer

    Wizardkoer Newbie

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    UGGHH SERIOUSLY I NEEEED HELLLP DOWNGRADING MY BIOSSSSS. HELP MEEE!!!

    Reading flash ............ done
    Secure Flash enabled, recalculate ROM size with signature...
    - FPS checksums ......... ok
    Loading capsule to secure memory buffer ... done
    18 - Error: Unable to start a Secure Flash session.

    I even tried the official BIOS file but nothing comes up in the temp folder to copy over. OMG I NEED HELP!! I REALLY NEED TO DOWNGRADE MY BIOS TO MAKE MY LAPTOP FAN WORK AGAIN!!!
     
  34. useless guru

    useless guru Notebook Enthusiast

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    The setup file temporarily unpacks all BIOS files to
    C:\Users\<myuser>\AppData\Local\Temp\__Samsung_Update
    Unfortunately the files get removed immediately. So you need to temporarily remove all 'Delete' permissions on this folder (you may have to take ownership first).
     
  35. Wizardkoer

    Wizardkoer Newbie

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    I know that. It's just that nothing comes up in the temp folder. I know I have to leave it open then copy over the temp files, otherwise it gets deleted BUT there is NOTHING there EVEN WHEN I START THE PROGRAM! So only the official BIOS don't work (there's nothing in the temp folder whatsoever)
     
  36. useless guru

    useless guru Notebook Enthusiast

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    Do you see the empty __Samsung_Update folder?
    This means that the files have been there quickly.
    On that folder right-click -> properties -> security tab -> advanced-> disable inheritance -> convert inherited permissions -> select your user -> edit -> show advanced permissions -> untick 'delete' & 'delete subfolders and files' -> OK -> OK -> OK.
    Now run the BIOS update again (as Admin!). You should now find the files you want.
     
  37. Wizardkoer

    Wizardkoer Newbie

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    Dude do you think I haven't tried that?!! THE PROBLEM IS NOTHING IS EXTRACTED IN THE FOLDER IN THE FIRST PLACE LOL!!! Sorry for the Caps.
     
  38. luis901

    luis901 Newbie

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    Please, anybody have the bios file for samsung np900x3b? Not the executable. I need this for new reflashing bios (sorry for my english).
     
  39. Wizardkoer

    Wizardkoer Newbie

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    If I do that another file apart from the debugapplog.txt comes up named SBIOSIO64.sys but no .cap or .rom file. UGHH **** SAMSUNG!

    My BIOS code is ACM
     
  40. Bielinek

    Bielinek Newbie

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  41. fhazardv

    fhazardv Newbie

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    Hi All

    I have the Samsung NP450R4E with bios model P08RBG and i need rollback to the previous version installed.

    I found the the version P06RBG and not can extract the .rom and .cap file of the executable. The find_gz program have error, when i executed say "Error! Unable write to file ...... "

    I got other notebook with same model with bios original (P05RBG), is possible extract the bios and use in my notebook for rollback the version of the bios?

    I am noob in this materia, please your help

    Regards

    PD: Sorry for my english
     
  42. mrtnspaul

    mrtnspaul Newbie

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    Hi, guys

    I have a Samsung laptop model: RF511-SD3BR (made in Brazil)

    I need to update BIOS to version 15HX or 16HX, because 17HX has a bug.
    But the Samsung website there is only 17HX version, which is the latest.

    My current version is 14HX - never updated. (date 10-20-2011)

    The manufacturer is AMI and the model I think it aptio 4.

    Where to download those versions?

    Thanks a lot.
     
  43. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Somewhere in this thread (maybe 2 - 3 years ago) is a simple program that someone wrote to iteratively search the BIOS database for a previous BIOS. You have to indicate a date range and an item number range, then leave it running and hope for the best.

    John
     
  44. mrtnspaul

    mrtnspaul Newbie

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    OK, I'll search, thanks.

    But how to update BIOS by .exe?

    and where is the change log?

    Thanks a lot.
     
  45. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Samsung never publish BIOS change logs, even internally.

    The BIOS update files are released as executables. The update procedure is described in the first post of this thread.

    John
     
  46. mrtnspaul

    mrtnspaul Newbie

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    OK, thanks a lot
     
  47. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    @mrtnspaul,

    @isosunrise summarized it all in the opening post of this thread (post #1).

    Using the cached BIOSItemList which he posted there, I was able to locate ITEM_20120313_426_WIN_15HX.exe and ITEM_20121112_755_20121024_755_WIN_16HX.exe. You then insert one of these into the download URL given by isusunrise.

    I found that the download path for 16HX caused a 404 error (in Korean) but the 15HX path works fine. So here is a download link for 15HX:

    http://sbuservice.samsungmobile.com/upload/BIOSUpdateItem/ITEM_20120313_426_WIN_15HX.exe

    After downloading this EXE file, you then need to extract its contents (using the trick described by isosunrise) and run the updater with the correct parameters to force flashing an older BIOS over your current 17HX (again, using the parameters given by isosunrise).

    Yours being an AMD model, I don't know which BIOS update utility it uses. Hopefully it's one of the two described by isosunrise. Otherwise keep reading in this thread as there are discussions of alternatives.
     
  48. carlosaguirre

    carlosaguirre Newbie

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    I guys
    I have the Samsung NP530U4E-S02CL (adquired in 2013) with bios model P08ACM. I need rollback to one previous version, because after update no longer hibernate, suspend or reiniciate properly (technical service not helped).
    The link http://sbuservice.samsungmobile.com/BUWebServiceProc.asmx/BIOSItemList does not work and in the file posted in the forum ( Google Cache Jan 31 2013) there are only P01ACM and P02ACM versions. I think one more recent version could work fine, but i couldn't find it. Help me please!
     
  49. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    Hi Carlos, welcome to NBR.

    I see what you are saying, that the latest ACM update in the cached list is ITEM_20130118_949_WIN_P02ACM.exe.

    You can try using the utility shared by member @osfrolov in this post. You enter a range of dates, range of update ID numbers (949 in the case of ITEM_20130118_949_WIN_P02ACM) and the BIOS version you are looking for (P02ACM if you were looking for that). It then scans Samsung's database for BIOS updates within that date range and ID range, looking for that specific BIOS update version.

    Problem is it takes a long time to scan if you use very broad ranges of ID number and dates, so you want to guess at a more narrow range.

    Using the link below to locate the latest BIOS update for the ACM platform ID (as posted by @isosunrise in the OP) I see that your current P08ACM update is ID 21341 dated 2014-03-25 (ITEM_20140325_21341_WIN_P08ACM.exe).

    http://sbuservice.samsungmobile.com/BUWebServiceProc.asmx/GetContents?platformID=ACM&PartNumber=AAAA

    So using the search utility, you can go backwards from that ID number and that date when searching for version P07ACM.

    According to member @codebeard's post here ID numbers jumped 10000 between 2013-07-26 and 2013-08-01, and another 10000 between 2013-09-26 and 2013-10-01. So if your searches span those dates, you would have to use an unrealistically large ID range.

    With all that in mind, I began the search you can see below: From 2013-10-02 (when ID numbers jumped to 20000+) to 2014-03-01 (a few weeks before your current P08ACM) searching ID numbers 20949 (949=the latest previous known P02ACM +20000) to 21340 (just before your current P08ACM) and searching for BIOS version P07ACM.

    BIOS finder P07ACM.png

    That search is still running and will take many hours. In fact, I cannot even promise that I'll keep running it till completion. You can try yourself for other ranges, using the methodology described above.

    If we find P07ACM, the utility will give you the full URL to download the BIOS update. It will be like the link given by isosunrise in the OP with the ITEM_ filename inserted, such as the link below for P08ACM:

    http://sbuservice.samsungmobile.com/upload/BIOSUpdateItem/ITEM_20140325_21341_WIN_P08ACM.exe

    I'll update this post if I my search is successful. Please post anything you find as well.

    Update:

    Unfortunately the BIOS Finder completed (after some 8 hours) without finding P07ACM. I let it run through 2014-3-25 (the date P08ACM was posted) and still nothing. Either that means it was posted before 2013-10-2 (the start date of my search) or its ID number is outside the range I was searching (20949-21340). I suggest you search earlier dates, keeping in mind the jumps in ID numbers I described above.

    I may give this another shot later, but I don't have any time on weekdays, so no promises.
     
    Last edited: Feb 29, 2016
    ALLurGroceries and carlosaguirre like this.
  50. carlosaguirre

    carlosaguirre Newbie

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    Hi Bro,

    Great job! Tanks a lot. I will try with P06ACM and a more restricted date interval. This is most I expected :)
     
    Dannemand likes this.
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