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Old 07-17-2021, 02:58 AM   #1
Francisco.s
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Default Protectli PC/router model FW4B

Hi, need a bios for Protectli PC/router model FW4B-0-8-120.

It uses a 8 Mbytes coreboot bios.

The one attached seems to be corrupted after a bios upgrade.
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File Type: zip FW4B.ZIP (1.38 MB, 2 views)
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Old 07-17-2021, 03:07 AM   #2
peste
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Default Re: Protectli PC/router model FW4B

Quote:
Originally Posted by Francisco.s View Post
Hi, need a bios for Protectli PC/router model FW4B-0-8-120.

It uses a 8 Mbytes coreboot bios.

The one attached seems to be corrupted after a bios upgrade.
try..
Attached Files
File Type: rar 2.0.2.2092_1.375MB_PRD_RGN.rar (1.29 MB, 1 views)
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Old 07-17-2021, 09:16 AM   #3
Francisco.s
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Default Re: Protectli PC/router model FW4B

Thanks peste it doesn't work.

Seems that problem is located in bios section, according to UEFITool:
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File Type: png FW4B.BIN2.PNG (92.3 KB, 5 views)
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Old 07-17-2021, 09:57 AM   #4
stj
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Default Re: Protectli PC/router model FW4B

coreboot is not UEFI, it can run a UEFI payload though.
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Old 07-17-2021, 12:20 PM   #5
Francisco.s
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Default Re: Protectli PC/router model FW4B

Quote:
Originally Posted by stj View Post
coreboot is not UEFI, it can run a UEFI payload though.
Hi stj, do you mean that UEFITool can't manage this bios?

Is There a tool to open this bios and correct the damaged data?

I have downloaded a coreboot binary file from pcengines.github website but is only 2 Mbytes. (it has some code that is the same as original bios but shorter in size)

Thanks
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Old 07-17-2021, 01:02 PM   #6
stj
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Default Re: Protectli PC/router model FW4B

contact the coreboot people about editing tools.
https://www.coreboot.org/

the thing about uefi payloads is they contain a filesystem that can have programs added to it.
so they can change in size.

that's also what makes them a security risk, you can insert malware into a uefi bios very easily compared to a traditional "blob of code" type bios

you should also look here:
https://libreboot.org/

Last edited by stj; 07-17-2021 at 01:04 PM..
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Old 07-18-2021, 09:55 AM   #7
Francisco.s
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Default Re: Protectli PC/router model FW4B

Finally I have found a bios for it.

I have googled for FW4B, and luckily found a zip file with the 8 Mbytes rom. (protectli-firmware-updater-main.zip)

There are a few rom files for other models and the *.exe file for upgrade the bios from an usb drive.

Just for someone who need this bios, I have attached it.
Attached Files
File Type: zip protectli_fw4b_v4.12.0.5.zip (1.49 MB, 0 views)
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