Bios hp 15-bs289wm

[m4a2t0t]

HP 15-bs289wm
LA-G121P
CND8280PNG
5 long 3 short on caps lock

I found and extracted the BIOS from HP but its not the same as the one I got out of the programmer. Large portions at the start and end are just FF or 00. I am certain i was using the proper version out of the 4 in the decompressed files. I went to like 42 49 44 to find which version it is. I dunno maybe the old BIOS was corrupt? Im probably just doing it wrong.

Can someone build me a working BIOS and I can check it against what I did?

The Original BIOS and the extracted BIOS from HP are in the zip file. The OG BIOS is named XM25Q64@SOIC8.BIN. It should use 084D4.bin if I remember correctly.

Anyone happen to know a decent video or detailed post on doing this? I have been trying to follow a video of some guy from India speaking their native language.

Thanks

[peste]

Re: Bios hp 15-bs289wm

HP 15-bs289wm
LA-G121P
CND8280PNG
5 long 3 short on caps lock

I found and extracted the BIOS from HP but its not the same as the one I got out of the programmer. Large portions at the start and end are just FF or 00. I am certain i was using the proper version out of the 4 in the decompressed files. I went to like 42 49 44 to find which version it is. I dunno maybe the old BIOS was corrupt? Im probably just doing it wrong.

Can someone build me a working BIOS and I can check it against what I did?

The Original BIOS and the extracted BIOS from HP are in the zip file. The OG BIOS is named XM25Q64@SOIC8.BIN. It should use 084D4.bin if I remember correctly.

Anyone happen to know a decent video or detailed post on doing this? I have been trying to follow a video of some guy from India speaking their native language.

Thanks

remove the bios chip from the motherboard before writing or reading, do not use the clip as you may get errors, if you do not have a bios chip adapter, solder the bios chip to the programmer, if you have CH341A, or solder wires between the programmer and bios chip ... if you didn't write anything on the bios chip, try reading and posting again ... look for more videos on the net in this regard ..
bios and EC bios extracted from the HP site update, the laptop has five bios variants ....

https://www.youtube.com/watch?v=DWWigscuQDY

[m4a2t0t]

Re: Bios hp 15-bs289wm

What does it mean when I read the EC and its all 00?

Im using pins 119 MISO, 120 MOSI, 126 CLK, 128 CS, 125 VSS, GND

ENE 9022Q

EDIT: I had MISO/MOSI backwards but im still getting all 00

I've tried ICSP and ZIF for programming and they all return 00

[m4a2t0t]

Re: Bios hp 15-bs289wm

Ok, I got the the EC read and backed up (apparently you have to wire it correctly ), I flashed it and im still 5+3 flashing on caps lock

Can someone check my BIOS and see if I screwed it up?

Or is there something else I need to do?

[peste]

Re: Bios hp 15-bs289wm

Ok, I got the the EC read and backed up (apparently you have to wire it correctly ), I flashed it and im still 5+3 flashing on caps lock

Can someone check my BIOS and see if I screwed it up?

Or is there something else I need to do?

Also write the 8MB bios with BID 084D4
DMI 3C7000 - 3C7FFF

[m4a2t0t]

Re: Bios hp 15-bs289wm

Ya, I did all of that. I created a new BIOS again with the DMI and still at 5+3

[peste]

Re: Bios hp 15-bs289wm

Ya, I did all of that. I created a new BIOS again with the DMI and still at 5+3

if you typed the bios on the chip without errors it should work, or the laptop could have other problems ....