Panasonic CF-20 no screen

[evgenymgv]

Hello, dear forum users! I have a Panasonic CF-20A0198VM. After the update, the laptop rebooted, the screen was black with no image. Disabling the BIOS battery did not help. I am attaching a BIOS backup. Thank you in advance for your help!

[SMDFlea]

Re: Panasonic CF-20 no screen

Hello, dear forum users! I have a Panasonic CF-20A0198VM. After the update, the laptop rebooted, the screen was black with no image. Disabling the BIOS battery did not help. I am attaching a BIOS backup. Thank you in advance for your help!

Post the serial number,it should be on a sticker on the bottom cover.

.

[evgenymgv]

Re: Panasonic CF-20 no screen

Serial number: 6HKSA12465

[evgenymgv]

Re: Panasonic CF-20 no screen

Please share the working dump for this laptop.

[evgenymgv]

Re: Panasonic CF-20 no screen

Still relevant. I really need a working dump! Or information on how to collect a dump for flashing the programmer from the update from the support site. Also, it might be possible to check my dump and fix it...

[SMDFlea]

Re: Panasonic CF-20 no screen

Still relevant. I really need a working dump! Or information on how to collect a dump for flashing the programmer from the update from the support site. Also, it might be possible to check my dump and fix it...

Try this one.

CF-20A/B/C/D (mk1)

Bios updated to V1.00L27 ,ME firmware to 11.8.93.4323

If its working you might have to install the latest ME driver and EC firmware

ME Driver: https://pc-dl.panasonic.co.jp/dl/dow...4323_inf_2.exe
EC: https://pc-dl.panasonic.co.jp/dl/dow..._1_m195071.exe

.

[evgenymgv]

Re: Panasonic CF-20 no screen

Try this one.

CF-20A/B/C/D (mk1)

Bios updated to V1.00L27 ,ME firmware to 11.8.93.4323

If its working you might have to install the latest ME driver and EC firmware

ME Driver: https://pc-dl.panasonic.co.jp/dl/dow...4323_inf_2.exe
EC: https://pc-dl.panasonic.co.jp/dl/dow..._1_m195071.exe

.

Thank you very much, the laptop came to life! Could you tell me what the problem was? And how did you manage to fix it? If you want, please send me a private message. Once again thank you very much!

[SMDFlea]

Re: Panasonic CF-20 no screen

Thank you very much, the laptop came to life! Could you tell me what the problem was? And how did you manage to fix it? If you want, please send me a private message. Once again thank you very much!

The problem was in the ME firmware or bios region,don`t know which one.

[plnewton]

Re: Panasonic CF-20 no screen

Thank you very much, the laptop came to life! Could you tell me what the problem was? And how did you manage to fix it? If you want, please send me a private message. Once again thank you very much!

Can I ask what you used to load the BIOS onto the chip?
I usually pull the chip and write to it in a programmer but the BIOS file atatched above is only 8MB so it must be a dump from AFUWIN or something similar

[evgenymgv]

Can I ask what you used to load the BIOS onto the chip?
I usually pull the chip and write to it in a programmer but the BIOS file atatched above is only 8MB so it must be a dump from AFUWIN or something similar

Hello. The dump is 16MB in size, but in the archive it is 8MB. This dump is intended for writing to SPI flash using a programmer. I used RT809H, for example.
That is, just extract the dump from the archive and simply write it with the programmer.

[plnewton]

Hello. The dump is 16MB in size, but in the archive it is 8MB. This dump is intended for writing to SPI flash using a programmer. I used RT809H, for example.
That is, just extract the dump from the archive and simply write it with the programmer.

thanks for confirming