I have Samsung Ativ 4. I updated my bios from P01RBG to P08RBG. Unfortunately after update my SSD can't reach SATA3 speeds. It is limited to SATA2, regardless of BIOS settings. I want to downgrade my bios. I found version P06RBG, but I can't unpack it. Could you help me? ht tp://sbuservice.samsungmobile.com/upload/BIOSUpdateItem/ITEM_20131213_21284_WIN_P06RBG.exe
Thank you. I opened cmd as admin and tried to update bios. Unfortunately i got an error. I looked for it in google, but i am still unsure how to make it working. I think this error is because there is not proper capsule in the rom. Should i unpack bios without removing capsule or just use different method of updating? Code: C:\P06RBGbios>afuwinx64 bios.rom /p /b /n /e /r /x +---------------------------------------------------------------------------+ | AMI Firmware Update Utility v3.04.01 | | Copyright (C)2012 American Megatrends Inc. All Rights Reserved. | +---------------------------------------------------------------------------+ Reading flash ............... done - FFS checksums ......... ok Loading capsule to secure memory buffer ... done 18 - Error: Unable to start a Secure Flash session. C:\P06RBGbios>
for the downgrade process you mentioned above just use the unmodified capsule (.cap) rom to start a secure flash session. but do yourself a favor and use afuwinx64 P06RBG.CAP /p « programm flag only so you won't loose your smbios data!!
The previous command was from ht tp://forum.notebookreview.com/samsung/696197-samsung-laptops-roll-back-bios-updates.html --- Still no success. The same error: Code: C:\P06RBGbios>afuwinx64 P06RBG.CAP /p +---------------------------------------------------------------------------+ | AMI Firmware Update Utility v3.04.01 | | Copyright (C)2012 American Megatrends Inc. All Rights Reserved. | +---------------------------------------------------------------------------+ Reading flash ............... done Secure Flash enabled, recalculate ROM size with signature... - FFS checksums ......... ok Loading capsule to secure memory buffer ... done 18 - Error: Unable to start a Secure Flash session. C:\P06RBGbios>