reporting a message

[Sandro C]

Hello, I would like to put a message I keep on getting.
The bios nowadays is not working fine any longer, and the laptop doesn't
boot, clearly.

#=#=#=#=#=#=#=#=
Erase/write done.
Verifying flash... FAILED at 0x00000000! Expected=0x5a, Found=0x00, failed
byte count from 0x00000000-0x007fffff: 0x10c3
Your flash chip is in an unknown state.
#=#=#=#=#=#=#=#=

I would be very happy to get some kind of help, and since I am a newbie, it
would be great if you feel ready even just to address me to the most
relevant web pages.
The job is focused on flashing a 16 pin mx bios chip on a lenovo laptop
model x200, for the use of a specific firmware called LibreBoot.

Many thanks again,

Sandro

[Buhrow, Simon]

Hi,

here just some general information/advice:

Use the latest flashrom version (current version 1.2: https://www.flashrom.org/Flashrom/1.2 )

For chip handling issues:
https://www.flashrom.org/Board_Testing_HOWTO

For electrical issues:
Do read operation several times and check for equality.
                Touch the cable/wires before starting a new read operation in order to find out if the contacts are good.
If all reads give you the same file there shouldn´t be any problem at electrical level.
If you get diffs between the files you have an electrical problem -> check contacts, use as short cables/wires as possible and try a lower frequency (if programmer supports this; do not overvalue the impact of frequency on total programming time, for some programmers most of the time is lost on other stages like usb communication etc. ). Check again with several read runs.

Regards,

Simon

Von: Sandro C 
Gesendet: Dienstag, 19. Mai 2020 12:48
An: [e-mail]
Betreff: [flashrom] reporting a message

Hello, I would like to put a message I keep on getting.
The bios nowadays is not working fine any longer, and the laptop doesn't boot, clearly.

#=#=#=#=#=#=#=#=
Erase/write done.
Verifying flash... FAILED at 0x00000000! Expected=0x5a, Found=0x00, failed byte count from 0x00000000-0x007fffff: 0x10c3
Your flash chip is in an unknown state.
#=#=#=#=#=#=#=#=

I would be very happy to get some kind of help, and since I am a newbie, it would be great if you feel ready even just to address me to the most relevant web pages.
The job is focused on flashing a 16 pin mx bios chip on a lenovo laptop model x200, for the use of a specific firmware called LibreBoot.

Many thanks again,

Sandro