Can't read 25Q128A SPI chip from a HP 840 G1

[GulagMaster]

I'm trying to read a 25Q128A SPI chip from a HP 840 G1 and the software wont even detect it. I'm wondering if I need an adapter of some kind to make it work.

I tried with windows using the Ch341a included software, wont detect and wont read
I also tried with flashrom on linux, flashrom and I get this :

sudo flashrom --programmer ch341a_spi -r hp840.bin
flashrom v0.9.9-rc1-r1942 on Linux 4.15.0-88-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.

I found the data sheet for the chip : https://www.google.com/url?sa=t&rct=...VxtJhOxoNvJL5q

Please help, I need to remove the bios admin password.

[Stevedb]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

Hi

Which version do you use of software ch341 A programmer i got the 1.38 which support all. But it is on windows.

Regards Steve

[GulagMaster]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

I use 1.31 on windows... I guess I will have to dig up that 1.38 version

[Stevedb]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

https://www.mdclab.it/lab-usb-programmer-ch341a.html

[Stevedb]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

You can also try this says Vesko356

[Stevedb]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

Does it work for reading bios chip

[R_J]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

Is the chip you are trying to read still mounted on the board, if it is, when you connect to it you are also trying to power anything else connected to the 3.3/5v line. IE: microprocessor, memory ic's etc.

[brew99]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

that's a 1.8V chip, so are you using a 1.8V adapter with the 341A?

[GulagMaster]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

Does it work for reading bios chip

With the new software (asprogrammer) it does, but I can't write it. it hang a few second clicking the write button

Is the chip you are trying to read still mounted on the board, if it is, when you connect to it you are also trying to power anything else connected to the 3.3/5v line. IE: microprocessor, memory ic's etc.

yes it is still soldered to the board. I am simply using a test clip. using a multimetre the chip gets 3.3v on pin 8.

that's a 1.8V chip, so are you using a 1.8V adapter with the 341A?

no I dont. but i did order one a few week ago... still waiting on it, hoping it wont come with a free corona virus sample.

[Vesko356]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

There is a new version of AsProgrammer and it's working more stable with ch341a.

[doa379]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

Please provide an update, could you read the chip?

[pcnetwork]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

There is a new version of AsProgrammer and it's working more stable with ch341a.

Thank you, it helped me a lot

[twonk9098]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

I have found NeoProgrammer to be the best software to use with the CH431A as yet.
This can be found here and seems to support alot of chips.
https://khandishnetwork.com/dl/neopr...-8-22-06-2021/

[Vesko356]

Re: Can't read 25Q128A SPI chip from a HP 840 G1

Thank you, it helped me a lot

You're welcome.

I have found NeoProgrammer to be the best software to use with the CH431A as yet.
This can be found here and seems to support alot of chips.
https://khandishnetwork.com/dl/neopr...-8-22-06-2021/

There's newer version (V2.2.0.10) than the one at your link:
https://www.badcaps.net/forum/showth...11#post1215111

.