Hp zbook 15 bios password reset

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Hi, I am new here and I need some help. Be patience

If it's not too much trouble I need a step by step guide that explain how to do the "bios backup" that I will upload here

Sorry for the inconvenience

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You need an SPI programmer like Ch341A or minipro. Then physically remove bios chip, attach to programmer and make a bios dump. If you don't feel like you are able to do that, try to find somebody who can.

No use in trying any key combinations.

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Oh! I understand. Thank you for the reply, I'll try to find this Ch341A or minipro or someone that know how to use it. May I update this post later for the news or I need to do a new one?

Really, thank you for your patience

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Just checked that model. You need a soic 8 clip aswell. Then maybe you don't even need to desolder the chip. Bios chip is right under bottom cover.

Just reply in this topic if you have any more questions about the process.

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Quote:

Originally Posted by RethoricalCheese Just checked that model. You need a soic 8 clip aswell. Then maybe you don't even need to desolder the chip. Bios chip is right under bottom cover. Just reply in this topic if you have any more questions about the process.

Thank's for the moment

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I finally did it. Here the .bin file and a .txt with infos (if necessary)

Really, thank's a lot for the patience and the help

zBookG2_BIOS_locked.zip (11.06 MB, 163 views)

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Now follow this first post: https://www.badcaps.net/forum/showthread.php?t=79956

Ignore the mazzif part, this wont work on your model.

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sorry for the long wait. but for work reasons I had to pause the unlocking of the famous 5 zbooks that I own. Today I tried to save the bios, I used the tool to create the _unlocked file, but it gives me an error just before the writing phase. (I will attach photos to make my situation clearer) These are the steps I do, then tell me if I do everything correctly. 1. I assembled the ch341a and connected the clamp on the bios chip. (1-2-3-4) 2. I used ubuntu to recognize the programmer and chip model. (5) 3. I used windows to read the bios and save it. (6) 4. Then I should have used HPunlocker to generate the bios_unlocked file, but for commitments I had to leave the operation on hold. 5. when I went home, I placed the clamp on the chip again, reread the chip with this result (7)

I tried again and again to reposition the caliper but the chip was no longer read in any way, neither in ubuntu. what will i have done wrong?

	1.jpg (137.1 KB, 87 views)
	2.jpg (137.9 KB, 87 views)
	3.jpg (98.2 KB, 68 views)
	4.jpg (190.1 KB, 70 views)
	5.jpg (127.0 KB, 80 views)
	6.jpg (212.1 KB, 81 views)
	7.jpg (228.4 KB, 74 views)

Last edited by bugmenot90; 01-26-2020 at 04:44 PM..

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Check the connection between the wires and the soic clip with the multimeter, the wires are very thin and it's possible some of the wires to be unsoldered from the clip end. I found two in mine clip unsoldered after a not so much use - it's just a cheap crappy clip.

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Did you remove battery and connect charger to laptop while programming?

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Quote:

Originally Posted by Vesko356 Check the connection between the wires and the soic clip with the multimeter, the wires are very thin and it's possible some of the wires to be unsoldered from the clip end. I found two in mine clip unsoldered after a not so much use - it's just a cheap crappy clip.

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Quote:

Originally Posted by RethoricalCheese Did you remove battery and connect charger to laptop while programming?

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yes, HP needs charger connected. And I usually disconnect battery. Either just connect charger and then clip or.. connect charger, turn on laptop, turn off laptop and then connect clip.

It depends on your programmer which one works.

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Quote:

Originally Posted by RethoricalCheese yes, HP needs charger connected. And I usually disconnect battery. Either just connect charger and then clip or.. connect charger, turn on laptop, turn off laptop and then connect clip. It depends on your programmer which one works.

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Hello together, I followed the post for reading out the bios (bought the same programmer with clip). I tried it by reading out using flashrom on linux. I also used the method with disconnected battery and plugging in power before reading (that was the only chance to read something at all). The problem is, that I was not able to read the same binary twice. So I'm not convinced to have the correct data. Could there be something I missed? Thanks for your answers!

Matthias

Last edited by hopey; 04-21-2020 at 05:02 AM..

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Quote:

Originally Posted by hopey Hello together, I followed the post for reading out the bios (bought the same programmer with clip). I tried it by reading out using flashrom on linux. I also used the method with disconnected battery and plugging in power before reading (that was the only chance to read something at all). The problem is, that I was not able to read the same binary twice. So I'm not convinced to have the correct data. Could there be something I missed? Thanks for your answers! Matthias

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Quote:

Originally Posted by bugmenot90 I finally did it. Here the .bin file and a .txt with infos (if necessary) Really, thank's a lot for the patience and the help Soon I'll upload the others locked bios by the other 4 zbook with the lock

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Quote:

Originally Posted by karthikdme88 How i can open .bin file ???

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Quote:

Originally Posted by hopey Hello together, I followed the post for reading out the bios (bought the same programmer with clip). I tried it by reading out using flashrom on linux. I also used the method with disconnected battery and plugging in power before reading (that was the only chance to read something at all). The problem is, that I was not able to read the same binary twice. So I'm not convinced to have the correct data. Could there be something I missed? Thanks for your answers! Matthias

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Hello! pleace help to unlock bios password
HP zbook 15 g2 password

zbook 15g2 locked.zip (10.08 MB, 25 views)

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DA0V07MBAD1 REV D

I want to share this with the team thank you

DA0V07MBAD1 REV D.rar (6.43 MB, 826 views)

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thanks for this sir

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Quote:

Originally Posted by Pascal Komlassan DA0V07MBAD1 REV D I want to share this with the team thank you

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thx bro it work fine

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Thanks. Good file

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Hello help me Dell Vostro 3591 FDI55 LA-J081P Rev 1.0 Bios Bin

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Quote:

Originally Posted by gesure Hello help me Dell Vostro 3591 FDI55 LA-J081P Rev 1.0 Bios Bin

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Thank You Boss!!!!