And ... all is well now. Password is gone, everything works. Only took over 2 months from start to finish. And all that for a fourth generation cpu.. ah well. It's the journey I guess
Thanks all !...
idog
I fumble
Last Activity: 04-28-2024, 03:33 AM
Joined: 08-29-2022
Location: Terneuzen, Zeeland
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Re: HP ZBook 17 G2 Locked BIOS Dump
And ... all is well now. Password is gone, everything works. Only took over 2 months from start to finish. And all that for a fourth generation cpu.. ah well. It's the journey I guess
Thanks all !... -
Re: HP ZBook 17 G2 Locked BIOS Dump
Ok, so.. I managed to get it to life again. The pad which I tore was not only connected to the via, but also to the capacitor nearby. Made a full jumper and it's back to life. Now for the actual password stuff...
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Re: HP ZBook 17 G2 Locked BIOS Dump
So, trying to make headway here, but unfortunately the laptop was giving me the silent treatment. All it does now when I turn it on (or when I connect the powercord without a battery in the laptop) is turn on for a second, all the leds (keyboard leds + power + wifi + volume) will light up for a second and it will turn off again. This keeps happening until I unplug it.
Thinking something might have been wrong with the firmware I wrote, I wrote back the original firmware (read back and verified). So the locked one....Leave a comment:
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Re: HP ZBook 17 G2 Locked BIOS Dump
Thanks ! I saw this post already requesting it ([url]https://www.badcaps.net/forum/showthread.php?t=111617&highlight=LA-B391P[/url]). I admit, he could be more polite about it, but I don't think there's added value in me creating a new post for the exact same schematics, so I'll just keep on eye on that post.Re: HP ZBook 17 G2 Locked BIOS Dump<...dmit, he could...Leave a comment:
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Re: HP ZBook 17 G2 Locked BIOS Dump
So, turned out the charger was not the correct one. I now have the correct charger AND the correct battery (was also not supplied the first time around).
It is now unfortunately not working. I see the charging led, but when I turn on the laptop it immediately turns off again. Anyone recognizes this behaviour ?
Since the writing of the bios went okay (I guess, will verify later) I am focusing on something I may have botched.
Remember I mentioned I was taking off the other bios chip first (the wrong...Leave a comment:
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Re: HP ZBook 17 G2 Locked BIOS Dump
Tomorrow was almost 2 months later. Apparently they weren't in a rush..Anyway, now they finally bring me the charger, but it's not the correct charger so it seems. It requires a 19.5v/10.3a charger. They bring me a 19.5v/4.62a one. Now I know a little bit less amps doesn't hurt it, but with this difference I guess the behaviour of the laptop is to be explained (fast blinking powerbutton and capslock when the charger is plugged in). To be continued...
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Re: HP ZBook 17 G2 Locked BIOS Dump
Thanks for the tips ! I took it off btw, I don't use clips. All 4 dumps (overcautious, I know) were identical. Also writing, verifying, dump again and compare. All checks out. Testing it tomorrow when the owner brings their powercord
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Re: HP ZBook 17 G2 Locked BIOS Dump
fyi. Found the correct ic next to the cpu. Didn't need to take out the motherboard, I could reach it after removing the keyboard.Leave a comment:
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Re: HP ZBook 17 G2 Locked BIOS Dump
Nevermind, I am stupid. Just read this post :
25Q16QVSIQ is not the right chip > Search the motherboard for the location of the correct (128 Mb) bios chip > dump (and verify) the content of the chip and upload the resulting file here > someone will edit the file to remove the password for you > you'll write back the edited file to the chip> password removed > happy end (of story).
So.. I will be taking out this motherboard...
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Re: HP ZBook 17 G2 Locked BIOS Dump
A bit of a necropost maybe, but I hope it's related. I have the same thing here, a Zbook 17 G2 with a locked bios dump. Chip Winbond 25Q16DVSIQ.
I have dumped it a couple of times with my RT809H and they all match, and they are 2MB in size. Which makes sense because said chip is a 16MBit one
However, looking for the BiosUser00 string yields no results, which confuses the hell out of me. Do I need to extract/decompress it ?
The attachments in this thread are all 16MB (instead of 2MB) which is why...Leave a comment:
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