Panasonic Toughbook CF-C2 please remove bios password!

[Jameslongo]

Cool very much thank you

[Beast007]

Hi,

I to have a Panasonic Toughbook CF-C2 with bios password what do i use to upload the new firmware posted on here to remove the password please

[SMDFlea]

read the 6 posts above, you will need an SPI programmer to make a backup of your bios chip.

[shiyab]

Hi,

I to have a Panasonic Toughbook CF-C2 with bios password what do i use to upload the new firmware posted on here to remove the password please

post backup bios

[rfkr]

Thanks to everyone who participated in the topic, thanks to it I was able to revive my laptop.

[Oleg Kulibin]

Hello, I have a laptop CF-C2(AECCHCE) S/N 3CTCA17822, I need to downgrade the BIOS version to the initial one, but the Panasonic program does not allow me to do this, reporting error 301. It's all because of the battery, new BIOSes released after 2018 killed the battery. I have rt809h programmer. Thanks.

[SMDFlea]

post your bios backup

[hammybob132]

Hello, following along with this thread I tried using the bios2 on my Panasonic CF-C2, and initially found that I was able to boot it up and navigate to the bios without issue. I then reassembled the laptop and have found that it will now turn on but not display anything on the monitor or on any external monitor. Is there any way you could help please? I've provided a back-up of the original BIOS from before I overwrote it. Any advice would be greatly appreciated

[SMDFlea]

Hello, following along with this thread I tried using the bios2 on my Panasonic CF-C2, and initially found that I was able to boot it up and navigate to the bios without issue. I then reassembled the laptop and have found that it will now turn on but not display anything on the monitor or on any external monitor. Is there any way you could help please? I've provided a back-up of the original BIOS from before I overwrote it. Any advice would be greatly appreciated

Type the laptop serial number, full name and model, motherboard model, etc.
read the forum rules..https://www.badcaps.net/forum/troubl...before-posting

[hammybob132]

Hi, the details of the laptop are as follows:

Panasonic Toughbook CF-C2
model no. CF-C2AH10HBE
serial no. 3CTCA18577

I'm not sure of the motherboard model at the moment because I've put it all back together, but the bios chip I connected to said 25q128a 13eco 99chn on it

[hammybob132]

Type the laptop serial number, full name and model, motherboard model, etc.
read the forum rules..https://www.badcaps.net/forum/troubl...before-posting

Do you know if the information I've provided is enough to go on, or would you like me to strip the laptop down again and try to get the motherboard model for you?

[rfkr]

hammybob132 Check all your solder joints and measure the resistance between pin 1 and pin 8 it should be 4.7k.

[hammybob132]

hammybob132 Check all your solder joints and measure the resistance between pin 1 and pin 8 it should be 4.7k.

I didn't desolder the bios chip to program it so I think the solder should all be fine 🤔 or is this a known issue even when programming with the clip?