HP Omen 15-ax201ns bios dump

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

If there is no voltage at BIOS pin 8 VCC

what are the possibilities

BIOS chip faulty?

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

As @peste has told you in this thread,and me in another,if it doesn`t boot with the virgin bios then the problem is somewhere else,trust us,or do you need a third opinion ?. Check the RAM,clean the gold contacts with an eraser,try some different RAM if you have some, and try with an external monitor/HDMI .If it still doesn`t boot i suggest you make a new thread in the main laptop forum and ask for help - https://www.badcaps.net/forum/forumdisplay.php?f=23
You will need a multimeter as members will ask you to take voltage readings and take the laptop apart.If you don`t have the tools or are not comfortable doing that take it to a repair shop.

.

Thanks for help, I have already mentioned above posts laptop did not boot with both bin files and both files were identical when compared with hex editor so it proves there is no bios chip issue and neither there is issue with memory RAM as already cleaned it with eraser tool , i think there is some issue with motherboard components like capacitors or Mosfets. anyways thanks for your help guys much appreciated.

[SMDFlea]

Re: HP Omen 15-ax201ns bios dump

As @peste has told you in this thread,and me in another,if it doesn`t boot with the virgin bios then the problem is somewhere else,trust us,or do you need a third opinion ?. Check the RAM,clean the gold contacts with an eraser,try some different RAM if you have some, and try with an external monitor/HDMI .If it still doesn`t boot i suggest you make a new thread in the main laptop forum and ask for help - https://www.badcaps.net/forum/forumdisplay.php?f=23
You will need a multimeter as members will ask you to take voltage readings and take the laptop apart.If you don`t have the tools or are not comfortable doing that take it to a repair shop.

.

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Hi

I did as you directed but still no display and caps lock keeps flashing with
5 long and 3 short blinks.

[peste]

Re: HP Omen 15-ax201ns bios dump

Hi

I have a question and it maybe helpfull for someone

Lets just say motherboard gets fixed and boots with virgin bios

will it ask for DMI and Keywin info at display or will not show display(post) without these information.

secondaly for info in bios bin file

DMI region found from offset 00222000-002220F0
and Keywin region at offset 00223000 -002230F0

i have updated both info in virgin file 08217 although these is something wrong with motherboard as no display even with virgin bios

Please correct me and share some thoughts thanks

write the bios chip only with the update sent ... in this case you should have inagine and the laptop to request your DMI information..bios better than the virgin one you will not find..if no image appears you have another problem .

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Hi

I have a question and it maybe helpfull for someone

Lets just say motherboard gets fixed and boots with virgin bios

will it ask for DMI and Keywin info at display or will not show display(post) without these information.

secondaly for info in bios bin file

DMI region found from offset 00222000-002220F0
and Keywin region at offset 00223000 -002230F0

i have updated both info in virgin file 08217 although these is something wrong with motherboard as no display even with virgin bios

Please correct me and share some thoughts thanks

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Hi all

here are the results , something wrong with mobo STILL NO BOOT AND NO DISPLAY. i see backlight when i put torch at LED.

Both files were identical when compared
IC identified and detected correctly

capslock led disappeared for 5 sec then again appeared.

THANK YOU

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Thanks

I will perform above steps and share results here, hoping for the best

[SMDFlea]

Re: HP Omen 15-ax201ns bios dump

Write the 08217 ,read it back,compare what you read back with the 08217. Both should be exactly the same. If they are the same and still no boot then it is no longer a bios issue and the problem is somewhere else

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Hi sorry for being so dumb but compare which file

you mean virgin bios with old corrupted bios or the bios file which i will write using neo and opening same file in hex editor to confirm.

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

before the bios it was working ok and yes first thing i noticed was while i was looking at my desktop for files suddenly my desktop background went black ( only icons were visible with black screen) after that i tried to upgrade bios and recover bios using CMOS reset but my wireless card or device was not showing in Device Manager and i had to restart laptop to make it visible i shut down my laptop and turned it on again but this time bios corrupted , capslock 5.3 error , tried everything like reseat memory and what HP website said but nothing, repair guy told me to flash bios but he had none so he returned my laptop and i joined this forum for help , rest you know

[SMDFlea]

Re: HP Omen 15-ax201ns bios dump

08217 for Kaby Lake H https://support.hp.com/rs-en/document/c05411183 i7-7700HQ = KABYLAKE H

BID08209 SKYLAKE U
BID0820D SKYLAKE H
BID0825F SKYLAKE H
BID08294 SKYLAKE H
BID08213 KABYLAKE U
BID08217 KABYLAKE H

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Hi

Neo programmer has support for GD25B64C chip confirmed

Thanks

Now what to do with files? and which one is valid for flashing.

[SMDFlea]

Re: HP Omen 15-ax201ns bios dump

NeoProgrammer has a search function,just type in GD25B .If the virgin bios is written correctly you should have something on the display.Erase the chip first,then write,then read back again and compare with HxD ,if there are any differences the bios chip is bad. If it has written correctly then i can only assume that the EC may be corrupt, as it was working ok before the bios update ?

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Adding above if i have flashed bios chip with any of the bios file 08217 virgin one for example it should show display at least asking for product ID etc at display , in my case after flashing bios it has no display at power on and still same capslock 5.3 issue.

correct me if i am wrong , are you saying if i use neo programmer with virgin or old bios it will flash it correctly as it accepts gigadevice GD25B64CS1G chip

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

Try NeoProgrammer software,it supports the GD25B64 Post #7 https://www.badcaps.net/forum/showth...=NeoProgrammer

Hi thanks for help

Here is what happend , i flashed bios file which you provided 08217F48 to chip
using Ch341a programmer and it identified chip giga device but showed 2 chips in selection
1- GD25B64
2-GD25B64C

i flashed both one by one with this file , first i read file and it did read it successfully showed me bid number 08217.

One more thing in IC list of the programmer there is no IC list for gigadevice
GD25B64CS1G, list starts with Gd25Q

[SMDFlea]

Re: HP Omen 15-ax201ns bios dump

Try NeoProgrammer software,it supports the GD25B64 Post #7 https://www.badcaps.net/forum/showth...=NeoProgrammer

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

choosen files are identical when hex editor compares both files except below value

[stingerchamp]

Re: HP Omen 15-ax201ns bios dump

enter the original bios of the laptop and update 08217 in the HxD program, tick in both bios the DMI and KEYWIN region and copy-paste, then rewrite the bios chip.

I have opened origional bios file in hex editor but unable to find DMI and keywin regions.

[peste]

Re: HP Omen 15-ax201ns bios dump

Thank you Sir

Finaly someone replied

Please tell me how to put this DMI info in bios file and yes bios has bid 08217
and step by step process thank you.

Furthermore Sir i forgot to mention getting 5.3 capslock error as i power on laptop.

enter the original bios of the laptop and update 08217 in the HxD program, tick in both bios the DMI and KEYWIN region and copy-paste, then rewrite the bios chip.