RCUnlocker

[shaggysound]

I have 3 Elitedesk 800 G6 SFF PC with password locked BIOS.

Product Number (same for all 3): 8YM57AV
Serial Numbers: CZC1239T57
CZC1239T5L
CZC1239T3X

The boards are all the same revision (Cersei Rev A)

There are two chips near the BIOS markings (Images Attached):

8 pin Giga Device 25B127DSIG
16 pin 25B256DFIG

I have a programmer on order, it only has 8 pin test leads.

Can you confirm the 8 pin 25B127DSIG is the chip of interest to RCUnlocker and that the tool works with this model of computer?

Thank you.

[GeminisK]

I will try tomorrow, thanks!

Dont work… Thanks.

I will make a last try with one from the hp t99 page according to the support, if it doesn't work, I will put the laptop for sale...

[SMDFlea]

Dont work… Thanks.

I will make a last try with one from the hp t99 page according to the support, if it doesn't work, I will put the laptop for sale...

You were asked to post both files https://www.badcaps.net/forum/troubl...31#post3546731

You have only posted the main bios, there is another chip , not sure if thats also 32MB or 16MB, but there is one somewhere on the board, maybe on the other side, when you find it post the backup.

[GeminisK]

You were asked to post both files https://www.badcaps.net/forum/troubl...31#post3546731

You have only posted the main bios, there is another chip , not sure if thats also 32MB or 16MB, but there is one somewhere on the board, maybe on the other side, when you find it post the backup.

Hello, I only have one bios on the board, it is 32mb, this is the original one.
hp probook 450 g8
Buildid:20wwr3BT601#SABE#DABE
27J69EA#ABE
BIOS: 25Q256JVEQ 3.3v
SN: 5CD0518SR5
I would like to have a clean bios or remove the password.
Thank you!!!

[SMDFlea]

Hello, I only have one bios on the board, it is 32mb, this is the original one.
hp probook 450 g8
Buildid:20wwr3BT601#SABE#DABE
27J69EA#ABE
BIOS: 25Q256JVEQ 3.3v
SN: 5CD0518SR5
I would like to have a clean bios or remove the password.
Thank you!!!

I have removed the bios attachment, you have already posted it twice in this thread, there is no need to post it again. There IS another chip on the board, and its 32MB, find it,look under the plastic ,look everywhere.look for SOP8 or WSON8 chips .

[GeminisK]

I have removed the bios attachment, you have already posted it twice in this thread, there is no need to post it again. There IS another chip on the board, and its 32MB, find it,look under the plastic ,look everywhere.look for SOP8 or WSON8 chips .

Sorry for the misunderstanding, is:
gigadevice 25b256dyig u9f154 aj2016
I will get this bios out and upload it as soon as possible!!! thanks!!


do you know with which program I can read it? asprogrammer 2.0, CH341A and NeoProgrammer not.... is impossible :/ how can I read it?

[shaggysound]

I have 3 Elitedesk 800 G6 SFF PC with password locked BIOS.


8 pin Giga Device 25B127DSIG
16 pin 25B256DFIG

Can you confirm the 8 pin 25B127DSIG is the chip of interest to RCUnlocker and that the tool works with this model of computer?
.

My CH341A arrived. After modding it to 3.3v I have successfully removed the bios password for my first system with RCUnlocker and NEO Programmer. I can confirm the 8 Pin 25B127DSIG is the correct chip to flash.

Here are some notes if anyone else is a novice like me:

1: For this model RCUnlocker just displayed "Unlock Success"
2: I used the GD25Q127C profile in NEO Programmer as there isn't one for the chip.
3: In NEO-Programmer I had to select all 5 options for write IC - Off-protect, Erase, Blank Check, Write, Verify. Without this selected it would not write.

[SMDFlea]

Sorry for the misunderstanding, is:
gigadevice 25b256dyig u9f154 aj2016
I will get this bios out and upload it as soon as possible!!! thanks!!


do you know with which program I can read it? asprogrammer 2.0, CH341A and NeoProgrammer not.... is impossible :/ how can I read it?

You can choose a different 256 chip from the list or add the chip to the NeoProgrammer support list

How to add chip support to NeoProgrammer software for the CH341A Programmer https://www.badcaps.net/forum/troubl...41a-programmer



id="C84019"
page="256"
size="33554432"

[GeminisK]

You can choose a different 256 chip from the list or add the chip to the NeoProgrammer support list

How to add chip support to NeoProgrammer software for the CH341A Programmer https://www.badcaps.net/forum/troubl...41a-programmer



id="C84019"
page="256"
size="33554432"

I have broken the pins of the chip.... now I have to buy another one, I have not been able to get your information.... is there a possibility to have clean bios for both chips? or the pc is useless?

[SMDFlea]

I have broken the pins of the chip.... now I have to buy another one, I have not been able to get your information.... is there a possibility to have clean bios for both chips? or the pc is useless?

There is a possibility to recover from this latest disaster yes, but it will involve more work as you`ll have to fill new DMI info, thats another challenge. When you get the new chip let us know.

[judynar]

This is a multitool and unlocker for several series of laptops. Works on Windows. No python etc installing needed, all included in package. Everything is tested by myself but since every laptop is not made equally, there might be edge cases. Always VERIFY your file after reading!!!

Unlocking
HP - ProBook, EliteBook, ZBook (including 32MB models)
Chromebooks from all various manufacturers
Apple - everything older than T2
More to come...

Information display (helps to verify file integrity)
HP - ProBook, EliteBook, ZBook (up to 16MB models for now)

Custom logo removal
HP - ProBook, EliteBook, ZBook (up to 16MB models for now)

Usage: Drag and drop .bin file to .exe file.

In case there are problems with unlocking your laptop, write a short description of the issue, upload original file and if possible, _unlocked.bin file aswell. Just crying for help is useless. Keep the topic as clean as possible.

You may ask for feature requests, I'll see what I can do.

i got this problem sir hello im from PH

[FaissalDZ]

I tried to unlock my HP ProBook 5330m with this tool and I got this error (in the image below)!

HP ProBook 5330m
Serial: CNF1400VLB
Product: LG723EA#ABF

What is the problem please?

[peste]

I tried to unlock my HP ProBook 5330m with this tool and I got this error (in the image below)!

HP ProBook 5330m
Serial: CNF1400VLB
Product: LG723EA#ABF

What is the problem please?

write it like this on the chip with error, it's ok..try..

[FaissalDZ]

write it like this on the chip with error, it's ok..try..

Thanks,
I compared the 2 files by HXD editor and I found them the same file.

[Stanciu Mihai]

Hello,
I tryed to unlock my HP Zbook 15 G3 and i received this error. I Download the vcruntime140 dll and put on the app folder, but wan't want to start. could you please help me what I need tot do to can start the app?

[azanwaqas771]

Hello,
I tryed to unlock my HP Zbook 15 G3 and i received this error. I Download the vcruntime140 dll and put on the app folder, but wan't want to start. could you please help me what I need tot do to can start the app?

first extract this and after copy this file paste in C:\Windows\SysWOW64 and C:\Windows\System32

[SMDFlea]

Hello,
I tryed to unlock my HP Zbook 15 G3 and i received this error. I Download the vcruntime140 dll and put on the app folder, but wan't want to start. could you please help me what I need tot do to can start the app?

Get dll files from the official microsoft installers. https://www.badcaps.net/forum/troubl...88#post1655388 ,install the 32 and 64 bit versions

Latest Microsoft Visual C++ Redistributable Version https://learn.microsoft.com/en-us/cp...?view=msvc-170

[Stanciu Mihai]

It worked after I installed both versions.
Thanks!

[GeminisK]

There is a possibility to recover from this latest disaster yes, but it will involve more work as you`ll have to fill new DMI info, thats another challenge. When you get the new chip let us know.

this one fits me? even if this one: u9f154 aj2016 is different? the only important thing is that the model is 25b256dyig? please confirm to buy it as soon as possible.

https://es.aliexpress.com/item/10050...Cquery_from%3A

[SMDFlea]

it is ok.if it says 25b256dyig.

[adamgouadma]

Thank you RethoricalCheese