Replace bios chip on HP CQ71 Mobo

[passete]

I have here a CQ71 mobo with no power, I read some threads about this problem, most of the time is bios related.
Now, the mobo bios chip is a cFeon F80-75HCP, but my bios programmer (CH341A) doesn't work with this chip.
Can I replace this chip with a winbond SPI 25 ?

Thanks

[Life Goes On]

Re: Replace bios chip on HP CQ71 Mobo

You can replace the bios chip with other chip with the same size and it will work, and for your programmer you have to buy adapter that fit your chip and you good to go.

[passete]

Re: Replace bios chip on HP CQ71 Mobo

You can replace the bios chip with other chip with the same size and it will work, and for your programmer you have to buy adapter that fit your chip and you good to go.

Size is the same as the winbond, it's with the programmer that I have the problem.
The CH341A software only accepts 25XX and 24XX chips, I don't see any cFeon F80-75HCP on the list.

[PlusCom]

Re: Replace bios chip on HP CQ71 Mobo

You will not find it with that name your chip is EN25F80 try with this one.

[atsio]

Re: Replace bios chip on HP CQ71 Mobo

Size is the same as the winbond, it's with the programmer that I have the problem.
The CH341A software only accepts 25XX and 24XX chips, I don't see any cFeon F80-75HCP on the list.

You have to search for 25 spi flash - eon - en25f80

[passete]

Re: Replace bios chip on HP CQ71 Mobo

Thank you guys, now I just need to find the bios file and flash it ?
or I'm stuck with the tattoo thing ?

[passete]

Re: Replace bios chip on HP CQ71 Mobo

wow, it worked with this file : https://www.badcaps.net/forum/showth...139#post575139

YEAH, mobo now is giving lights, I guess that now I need to enter the SN !
is there a little guide or tutorial for this ?

[atsio]

Re: Replace bios chip on HP CQ71 Mobo

Tattoo has nothing to do with laptop not starting

[passete]

Re: Replace bios chip on HP CQ71 Mobo

Tattoo has nothing to do with laptop not starting

I know, thanks !
Box is now starting (after flashing bios chip), fan is running and leds are ON, before there was NOTHING.
But I think that I'm stuck now, cause I don't have the keyboard neither the internal screen.
I know that is mobo don't give bios access to external display.
I see the Cap's Lock led blinking (led is on mobo, not on kb) plus 2 others leds flashing at same time.

[fddizon]

Re: Replace bios chip on HP CQ71 Mobo

count the blinks before the pause search in hp website blink error codes

[passete]

Re: Replace bios chip on HP CQ71 Mobo

count the blinks before the pause search in hp website blink error codes

The caps lock motherboard led blinks 3 times.
Ok, swapped memory now I need to tatoo

[ala_borbe]

Re: Replace bios chip on HP CQ71 Mobo

post exact model of laptop (cq71-xxxx) and exact model of motherboard 6050XXXXXX...
and then post nonworking bios here

[passete]

Re: Replace bios chip on HP CQ71 Mobo

OK, I have succeed to tattoo the cq71 mobo (I think), but now either LAN or WLAN can't connect, even with a fresh install !
Is this related with a bad tattoo ?
Thank you

[ala_borbe]

Re: Replace bios chip on HP CQ71 Mobo

dono what tattoo is...

anyways it can be bios, it can be cold joint on chipset (reflow or reball to be sure), and also you need HP Launch Button app to turn wifi on or off... also, there is button near power button for that if i recall correctly

[passete]

Re: Replace bios chip on HP CQ71 Mobo

dono what tattoo is...

anyways it can be bios, it can be cold joint on chipset (reflow or reball to be sure), and also you need HP Launch Button app to turn wifi on or off... also, there is button near power button for that if i recall correctly

By tattoo I mean enter the values like SN, PCID, etc that get erased once you flash the bios.
I notice that the LAN as not a Mac address, only 00:00 zeros ...

EDIT: SOLVED, wrote to eeprom a mac address from a old pci card

[ala_borbe]

Re: Replace bios chip on HP CQ71 Mobo

well i can take that data from dump and paste it to new bios and then you flash it and we will see

[passete]

Re: Replace bios chip on HP CQ71 Mobo

well i can take that data from dump and paste it to new bios and then you flash it and we will see

Thank you buddy, I just entered a old mac address on the bios and now Lan is working.
Thanks for your time.