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Last edited by Vesko356; 09-14-2021, 03:15 AM.----------------------------------------------------------------------------------------------------------------------------------------------------------
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Re: hp 450 g7
Both two files 450-G7-Locked-2021-09-11-01 NEW, and 450-G7-BackupBiosLocked-2021-09-12-03 NEW must be written to the corresponding chips simultaneously and then unlocking procedure will be OK. You're trying to flash only one chip at a time and then to test, but it won't work that way.Last edited by Vesko356; 09-14-2021, 03:46 AM.----------------------------------------------------------------------------------------------------------------------------------------------------------
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Re: hp 450 g7
Hello!
You can give DMMP BIOS (HP ProBook 450 G7 BIOS S71 dump).
On the first and on the second BIOS.
Thanks!Comment
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Re: hp 450 g7
You have done excellent job. Again many many thanks for your effort. Now there is no more "Power-On Authentication". Every function running perfectly.
Both Main and Backup BIOS had been re-written as your instruction. I did one more thing, made a BIOS backup on pen-drive from HP's site. Also plug-in at the same time for extra caution.
So HP Probook 450 G7 need to rewrite both BIOS to remove "Power-On Authentication".
Appreciating your effort.
Thank you Brother.
Kind Regards
AsifAttached FilesLast edited by mdasifbd; 09-14-2021, 11:30 PM.Comment
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Become a Badcaps supporter
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Thanks to all supporters.
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Re: hp 450 g7
Hi,
Can you help unlock the Absolute Persistence of hp 450 g7?Comment
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Re: hp 450 g7
without successComment
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Re: hp 450 g7
Can you help unlock the bios password of hp 450 g7?
Thank youLast edited by AmirJane; 07-23-2022, 04:30 PM.Comment
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Re: hp 450 g7 password
Hello, can you pls help me with password? Don't know why but RCUnlocker doesn't work..Comment
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Re: hp 450 g7 password
Hello guys!
I was not succeed with RC unlocker. No video, spinning fan
May I also ask for pass removal or both chips unpassed dump?
Attached dumps of both chips GD and Winbond.
Thanks in advance!Comment
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Re: hp 450 g7 password
remove the bios chip from the motherboard before reading or writing it, don't use the clip because it gives errors..
try..Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
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Re: hp 450 g7 password
Many thanks for your great work and info. Yes I have readed and also programmed both chips in place.
May I ask a question?
I have T56 and I lowered the clk speed to 5 MHz. The chip (both) powering resistance is bigger than 15 kOhms.
I readed both chips TWICE and checked for differences (HEX, CRC). Both saved dumps for both chips were OK. No differences. Is it possible to read twice in place with IDENTICAL errors?
If is this possible, it menas, that also the second chip Winbond W25Q128JV was readed improperly and need fix.
May I ask also for fixing the second one - Winbond, in this case?
Many thanks!Last edited by Fireballcz; 08-22-2022, 03:05 PM.Comment
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Re: hp 450 g7 password
Hi Peste,
Thanks, but no success. The prompt for pass remains the same. So clearing the part of starting with "NvramActiveRegn." (GD125B127D) was not helpful.
So I flashed back original (locked) dumps. Laptop works untouched, as arrived - asking for password. This means, that reading/flashing (with reduced clk) IN PLACE must be 100% OK.
Maybe Im missing something.
Please see attached image and explain, if possible.
There are two chips, both 128Mb (16MB)
- GigaDevice GD25B127D (dump starts with a block of FF values)
- Winbond W25Q128JV (dump starts with various values)
Please:
1) Which of them is the main one?
2) Which of them should be altered by RCUnlocker?
Many thanks for your time.Attached FilesComment
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Last edited by hoaca388; 08-23-2022, 03:01 AM.
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, log into bios, and reset security settings to default.
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Hey guys,
have a laptop here that has a supervisor Password (dump in Attachements).
Before i write the Serial NR.etc i wanted to say that strangely after flashing with 3 different Bios dumps and one from lenovos site
the laptop works but everytime it wants me to type a supervisor password i never set.
I thought the supervisor password is stuck in the ec bios but no it isn't either because after replacing the ec chip from one of another board it still has the supervisor password.
Anyway i wanted to ask what of the two chips is the ec bios because on the left... -
Hi friends., I am working on MacBook Pro A2159 touchbar 2019. The old logic board was liquid spilled so I ordered another logic board from AE. Received it & all worked fine till I got to the Chinese login screen where the login screen password tobe entered. I tried to reset the password but it again gave me options which I do not know about the Apple ID. I formatted the onboard SSD. & wanted to change the startup boot sequence but in order to change it, again the password is needed for that too. Is there a way to get rid of this password?? The seller has not replied back past 2 days, how...05-13-2025, 04:16 PM -
Hi all, I'm new here, a few words about myself: CS student, interested in hardware stuff too - tinkering my whole life but with practically no experience when it comes to firmware "hacking".
So I have this X380 Yoga with a supervisor password in place and before doing anything stupid I figured I'd rather ask.
I plan on using the tool from this thread: https://www.badcaps.net/forum/troubl...password-remov... -
Hello,
I'm hoping someone can assist me.
I have an Asus Vivobook 16x Pro OLED laptop which has a BIOS password, and I can't seem to find it.
It still boots into Windows (boots from whatever SSD is installed but not from USB).
The model number is M7600R and serial number is N8N0CX03H71131C.
I tried AMITSESetup Decryptor but the password I got doesn't make sense (it's got a line break and special characters).
I also tried to use *************** MOD EDIT ,redacted************** and it also gave me the funny password of
...Code:tmNx\'=QJQ
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Here is all the info you should need to remove bios password from your same model or one with an MEC-Chip and also write back the config data
T14s - MEC-1663 - Jtag - Pinout - Bios Password Removal
See Diagram for Wiring.
Use MEC-1633#ISP on your RT809h
This is same Jtag pinout and method for T490S/X390
(But your R/W 10K Resistor Location May In a Different Location)
MEC-Chips Store Bios Password In a Secure Un-Editable Area
Following steps clear that secure area to re-initialize itself to default (Blank)
...
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