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Old 04-16-2023, 01:57 PM   #1441
Vesko356
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Default Re: HP BIOS unlock tool

Quote:
Originally Posted by tmax View Post
hello my name is tom I am new I have a lost hp elitebook pass I read the mix25l3255 chip I did several tests in hex in dump but it does not want to skip the security who could help me please
Welcome to the Badcaps.net Forums.
Add full model name of the device, serial number, and attach the bios dump to your request.
Read forum rules please.
BIOS guides, methods, resources and tools
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*

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Old 04-17-2023, 09:44 AM   #1442
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Default Re: HP BIOS unlock tool

Hello sir, I'm sorry

hp elitbook 645 g9 notebook pc
5cd248fzrh
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Old 04-17-2023, 09:54 AM   #1443
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Default Re: HP BIOS unlock tool

Quote:
Originally Posted by Vesko356 View Post
Welcome to the Badcaps.net Forums.
Add full model name of the device, serial number, and attach the bios dump to your request.
Read forum rules please.
BIOS guides, methods, resources and tools
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*

.
file is here thanks all
Attached Files
File Type: rar mx25L3255.rar (362.0 KB, 11 views)
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Old 04-17-2023, 10:09 AM   #1444
Vesko356
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Default Re: HP BIOS unlock tool

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Originally Posted by tmax View Post
file is here thanks all
No, 362.0 KB is not good enough for a good read. Try again.
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Old 04-17-2023, 01:16 PM   #1445
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Default Re: HP BIOS unlock tool

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Originally Posted by Vesko356 View Post
No, 362.0 KB is not good enough for a good read. Try again.

I think my reading is good so I think I am not on the eeprom any info please
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Old 04-17-2023, 03:46 PM   #1446
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Default Re: HP BIOS unlock tool

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Originally Posted by tmax View Post
I think my reading is good so I think I am not on the eeprom any info please
No, as I said it's not good at all. This model should have 32MB bios.

Last edited by Vesko356; 04-17-2023 at 04:22 PM..
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Old 04-18-2023, 10:00 PM   #1447
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Default Re: HP BIOS unlock tool

Does this unlock look suspicious? This is on an EliteBook 745 G3. I tried booting with the unlocked rom but all I got was black screen with power & caps lock light on.

I also tried the unlock on a rom from a water damaged 755 G5 and the unlock "looks" much more believable. Too bad I can't boot this one up.

comp.png
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Old 04-18-2023, 10:04 PM   #1448
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Default Re: HP BIOS unlock tool

Yes, your first read is bad. Did you verify what you read?

Oh and thatswhy RCUnlocker is the one to use. It will kinda let you know if you have a bad read.
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Old 04-18-2023, 10:12 PM   #1449
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Default Re: HP BIOS unlock tool

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Originally Posted by RethoricalCheese View Post
Yes, your first read is bad. Did you verify what you read?

Oh and thatswhy RCUnlocker is the one to use. It will kinda let you know if you have a bad read.
Ah ok I was only aware of HPUnlocker. I'll re-read & verify the rom and try RCUnlocker tomorrow. Thanks.
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Old 04-19-2023, 01:50 AM   #1450
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Default Re: HP BIOS unlock tool

If you already messed up the first read and then wrote a faulty file then it's no use. Already corrupted.
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Old 04-19-2023, 08:47 AM   #1451
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Default Re: HP BIOS unlock tool

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Originally Posted by RethoricalCheese View Post
If you already messed up the first read and then wrote a faulty file then it's no use. Already corrupted.
I wrote my "read1.bin" back to the rom and it is booting. Is my read actually bad?
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Old 04-19-2023, 12:48 PM   #1452
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Default Re: HP BIOS unlock tool

Probably using Ch341A?

I guess it fails to read/write second half of the file properly so that would explain it.

Try reading and verifying, see if it passes.
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Old 04-19-2023, 05:23 PM   #1453
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Default Re: HP BIOS unlock tool

Yes I am using CH431A

I have a new read which I also verified. Checksum is the same as my 2 original reads.
Attached Files
File Type: zip read3.zip (2.92 MB, 9 views)

Last edited by Vesko356; 04-19-2023 at 07:43 PM.. Reason: Removed external url
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Old 04-19-2023, 07:08 PM   #1454
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Default Re: HP BIOS unlock tool

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Originally Posted by 0x888816 View Post
Yes I am using CH431A

I have a new read which I also verified. Checksum is the same as my 2 original reads.
You just chose the wrong chip - U366, that's your problem. It is near the RTC battery. The password is in the other with board positional name U365, located next to the CPU fan. Upload a dump of it here and I'll remove the password. Read it twice and compare the contents beforehand.

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Old 04-20-2023, 08:46 PM   #1455
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Default Re: HP BIOS unlock tool

Quote:
Originally Posted by Vesko356 View Post
You just chose the wrong chip - U366, that's your problem. It is near the RTC battery. The password is in the other with board positional name U365, located next to the CPU fan. Upload a dump of it here and I'll remove the password. Read it twice and compare the contents beforehand.
Thank you RCUnlocker recognized it and unlocked it BUT I accidentally made a huge mess while soldering and now it wont boot into bios
My immediate repair didn't work so I'll have to get my multimeter out and figure out what's going on
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Old 04-21-2023, 09:27 AM   #1456
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Default Re: HP BIOS unlock tool

Hello Brother, Can you please help i Managed to read the BIOS finally, can you please unlock it
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File Type: rar Save bios.rar (7.90 MB, 3 views)
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Old 04-21-2023, 10:17 AM   #1457
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Default Re: HP BIOS unlock tool

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Originally Posted by animorca11 View Post
Hello Brother, Can you please help i Managed to read the BIOS finally, can you please unlock it
Why don't you use the tool yourself? BIOS guides, methods, resources and tools
Next time don't post your request in two threads at the same time.
Find the topic for the specific laptop model and post a request there.
This thread is for requests in case you didn't succeed on your own or the tool can't unlock the dump.
Read the rules.
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*:
https://www.badcaps.net/forum/showthread.php?t=103570

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Old 05-06-2023, 04:48 AM   #1458
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Default Re: HP BIOS unlock tool

Hello Everybody:

I am try to open the Hp Bios Unlock Tool i have received an error, in Win 10 Pro 64b.

Thankyou very much.
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File Type: png Realtech.png (25.1 KB, 42 views)
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Old 05-06-2023, 05:33 AM   #1459
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Default Re: HP BIOS unlock tool

Quote:
Originally Posted by Mojtabasultani View Post
Hello Everybody:

I am try to open the Hp Bios Unlock Tool i have received an error, in Win 10 Pro 64b.

Thankyou very much.
Read the rules before posting:
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*

Use the search engine and read the thread carefully, especially post #1:
Quote:
Originally Posted by RethoricalCheese View Post

When you have your dump, just drag and drop your file on my HPUnlocker tool and it will create a new file. It will add "_unlocked" to the name of your locked file.
https://www.badcaps.net/forum/showth...55#post1203555

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Old 05-30-2023, 09:18 AM   #1460
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Default Re: HP BIOS unlock tool

Hi. Im new with this. I want to unlock an HP 455 G7 Bios. Can you help. Sorry for my english. Im from Guatemala.
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