@Lost_N_Bios I state that you will think that I am stupid but I wanted to try my luck with this new card to update to the latest version without success on the success and this latest BIOS creates problems in overclocking as the card boots but remains stuck to the tuf image without being able do anything but the PC is not locked ... having said that I wanted to go back to version 1407 but I did not understand how to do with flashrom.
Thanks

If no have a bacup bios previous version can't do a flashback?

extracting the uefi image I was able to do a flashback with flashrom tool and return to the more stable version for overclocking the ram

Fernando, how do I know which is the correct option for my machine/bios? thanks

Im including system information if that helps:

Fernando, I tried doing the "How to dump the BIOS Region and to flash a modded AMI UEFI BIOS by using the Flashrom tool (valid for mainboards from all manufacturers)" and the processed failed, took a pic, it give some info on the chip, which method can i use? thanks for all your help

@mostfun - Do below, tell me what you error you get at #2 - DO NOT FLASH your already modified stock BIOS, this will not be used, you can delete it!
You will do #1 here, send me the file and tell me what error you get. Then I will help you to bypass that error, then you will make a new #1 file once done, then you will test that file with #2 again, and once success with #2, that new #1 file is what you edit/modify, then flash back.

HI, as per your instructions, here is the file and the error I got when i did step 2

Zitat von mostfun im Beitrag #770

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Fernando, how do I know which is the correct option for my machine/bios? thanks
Im including system information if that helps:

System Manufacturer ASUSTeK COMPUTER INC.
System Model G771JW
System Type x64-based PC
System SKU ASUS-NotebookSKU
Processor Intel(R) Core(TM) i7-4720HQ CPU @ 2.60GHz, 2594 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. G771JW.211, 10/30/2015
SMBIOS Version 2.7
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer ASUSTeK COMPUTER INC.
BaseBoard Product G771JW
BaseBoard Version 1.0
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Binding Not Possible

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this board d875pbz has an intel 82802ac firmware, flashroom tool supported this chip https://flashrom.org/Supported_hardware.
but only read mode, i have try to read but cannot read.

@mostfun - Thanks. Now, follow the guide linked below, but you can start at step #6, I've done 1-5 for you and the info is below
[GUIDE] Grub Fix Intel FPT Error 280 or 368 - BIOS Lock Asus/Other Mod BIOS Flash

Rename .efi file to >> Shellx64.efi

SMI Lock Variable to change >> 0xAE
BIOS Lock variable to change >> 0xAF

So, at grub prompt, you will type the following one line at a time, enter between each (case sensitive)
setup_var 0xAE 0x00
setup_var 0xAF 0x00

Then reboot, and do FPT step #1 again with new name (such as BIOSregnew.bin), and then try to write it back via step #2 using the new biosregnew.bin name
If success, then you can now flash in mod BIOS using this method. Edit the new file from this current #1 >> biosregnew.bin, then flash it back.

** If when using grub/setup_var you see error "Can't set variable via EFI" then you will need to use RU method instead >>
Go to section 2.2 and make bootable USB with RU program, then read 2.3-2.5
http://forum.notebookreview.com/threads/...-issues.812372/
You'll make same changes at same hex offsets that I mentioned above, in Setup @ GUID - EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9

@pipes80 - Dump the intel chip with flash programmer, if flashrom + flash programer = read only you may need to use other software with the flash programmer, or pull chip from the board and try that way instead (rarely required)
What you linked and the image are not related, I mean 82802ac is not a BIOS chip I recognize, unless is this maybe the old PLCC32 you mentioned before? If yes, is this chip in a socket or soldered to the board?
If it's in a socket, I can link you to a programmer that I know will work with it, but you will have to wait for shipment from South Korea

Hi, I successfully FPTw see attached image, what is my next step?

In your previous reply, you stated, "If successful, then you can now flash in mod BIOS using this method. Edit the new file from this current #1 >> biosregnew.bin, then flash it back." what method is that? Thanks in advance.

Zitat von Lost_N_BIOS im Beitrag #778

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@pipes80 - Dump the intel chip with flash programmer, if flashrom + flash programer = read only you may need to use other software with the flash programmer, or pull chip from the board and try that way instead (rarely required)
What you linked and the image are not related, I mean 82802ac is not a BIOS chip I recognize, unless is this maybe the old PLCC32 you mentioned before? If yes, is this chip in a socket or soldered to the board?
If it's in a socket, I can link you to a programmer that I know will work with it, but you will have to wait for shipment from South Korea

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