Helo, I need help in identifying which chip is related to the bios. I have seen 3 serial flash memo

[Paolo]

Helo,

I need help in identifying which chip is related to the bios.
I have seen 3 serial flash memory chips in my laptop's mother board (hp-dm4 3098ee beats edition).
25Q32bvsig
MX25L121E
MX25L1006E
please i want to make sure which one in order to reflash it.

thanks in advance,

 

[Jetster]

Talk more about what your trying to fix.

 

[Paolo]

Talk more about what your trying to fix.

I made an update of the bios through windows using insydflash.exe after I download the bios driver.

after that the laptop turns on and off repeatedly with blank screen. I search on the web for identical problem and notice that the bios file is not installed correctly. I need to reflash it using a eeprom external programmer

 

[Jetster]

25Q32bvsig good luck. If you can get it to work just buy a generic BIOS.

 

[Paolo]

thank you Jetster..
I also thought this chip would be, I will check to reflash it with minipro tl866 programmer.. I have the tool
But another question for the two other chips are there a cmos memories?
want also to reflash them?

 

[Jetster]

I don't know. There not listed as such.

 

[Paolo]

I flashed the chip named 25q32bvsig with the updated BIN file from hp-support and drivers,
but now the laptop did not respond
previously the cpu fan turns on and off, and now nothing happens.
I am afraid that I flashed the wrong chip!

 

[Jetster]

Check e bay see if you can buy a BIOS chip. Then swap it

 

[Tatty_Two]

I flashed the chip named 25q32bvsig with the updated BIN file from hp-support and drivers,
but now the laptop did not respond
previously the cpu fan turns on and off, and now nothing happens.
I am afraid that I flashed the wrong chip!

You didn't, that is the correct chip. Maybe you just did it wrongly, did you check structures first? I assume you know the Bios Mods forum, if not there is a lot of info there and plenty of experts who hopefully can help, otherwise as jester says, you may need to find yourself a new one.....................

https://www.bios-mods.com/forum/Thr...25Q32BVSIG-25X10BVNIG-on-acer-aspire-5755G-MB

 

[truth teller]

they are all flash memory chips
32mbit = 4mbyte
1mbit = 125kbyte
10mbit = 1.25mbyte
so the first one does seem to be the main bios file (the others probably store control parameters for "other stuff".

what you did wrong was flashing the chip using bare tools when you dont know the format of the bin file, what made you think that it only contains the exact copy of the binary on the chip? it most likely did contain control headers for identification, control and validation to be used by the flashing tool provided by hp.
you should have put all the files on a usb stick and boot the laptop with the stick on, most laptops have a failsafe procedure where if the bios is borked (invalid crc or cant be loaded) it will scan peripherals looking for a new bios file to flash.

find the same laptop with a working bios, dump it using bare tools, flash the dump onto yours again using your external programmer. good luck

 

[Paolo]

Thanks for your reply,

In fact I download the bios file from hp website, the extracted file is attached here, where I found the BIN file that I use it to reflash the bios chip using the external programmer.
Does this come false? any idea for correct repair?

Thank you.

 

[truth teller]

see the file size, its 4.6mb when the flash chip can only hold 4.0mb. the file clearly holds more data then the binary for the bios, now where it is located we cant be sure, nor how it is flashed/patched to the rom (can be sequential, broken by partitions, some are even written end to start, etc.), and there is no way to tell unless you ask hp for a clear binary dump of that bin file, or you can also start reverse engineering the flasher application they provided. if i were in your shoes i would still mail hp and ask for a dump of the bios (they will probably answer with "please bring you laptop for motherboard replacement" given their track record and their labeling of components, but its still worth the shot), or look at ebay like @JESTER mentioned for the same laptop that is broken (for parts), then switch the flash chip with yours (you might as well dump the rom before soldering and save that binary dump on safe place, might come in handy again).
best of luck