Could someone help me remove the password? Can't remove it with the post files.
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
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HY I HAVE IDEAPAD LAPTOP NOT GIVING DISPLAY I ATTACHED THE OLD BOIS. BUT I DONT HAVE ANY ELSE BECAUSE LAPTOP DONT HAVE ANY STICKER ETC ON IT FROM WHERE I CAN SHARE THE SERIAL NUMBER AND TYPE ETC
KINDLY HELP ME TO FIX THE BIOS OR LET ME KNOW THE SOLUTION
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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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Hello,
I have same laptop 330-15IKB (Type 81DC) Laptop (ideapad) - Type 81DC
serial PF1HCRN1
MB DG421 DG521 DG721 NM-B6241
Bios Chip 25B64SSIG
I extracted from official Lenovo bios the bios.fd but it it too long when I try to use it with a CH341A programmer.
Could one of you please help me to remove any unnecessary information from it?
please find it attached.
Thanks.
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Thanks for your reply.
For the moment I can't read it. Tried with different programmer versions but always blank. I don't know if that's because the Bios is damaged or I don't connect correctly to the chip (tried with the 1.8V adapter but till now I couldn't find if I should keep it or remove it. I don't want to try without to avoid any physical damage to the chip).Comment
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Many thanks. Still struggling to find a CH341A soft to successfully read/write on the chip. I will keep trying with all versions I could collect till now. If no success, I will try without the 1.8V adapter. I will give feedback...Comment
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The troublemaker was the 1.8V adapter, I could read/erase/write the new bios without it. Unfortunately this doesn't solve my problem. Power LED still blinking three times, laptop not booting and switching off after 10 seconds.
I will continue troubleshooting.
Attached is backup I dumped, in case it helps one of you to build the "right" Bios.
Many thanksComment
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Dear all,
I have recently fixed a Lenovo IdeaPad 3 15 ALC6 that was not booting due to a BIOS issue. After flashing the BIOS, the laptop boots up, but hard disk is not recognized in BIOS. Is says "Hard Disk : Not Installed". I have tried with 2 different drives (one that I know is working on another laptop) but I get the same result. I do not know if disks were recognized before I got the laptop and fix it, but I don't see any reason why not. I can boot on USB though.
Here the steps I have taken to fix the laptop:
- downloaded latest BIOS from Lenovo Website... -
So a couple of years ago i got a bios update through Lenovo Vantage, so i installed it and bricked my whole BIOS, so i couldn't fix it so i put that ideapad in a box, 3 years later i found that one PC and want to recover it to switch from a 2014 hp laptop to this one.
I found a method to recover the BIOS of many lenovo laptops tha consists in pluging in a USB Flash with the BIOS files and power on the laptop with Fn + R keys pressed until fans go loud and start beeping loud, but nothing worked, so i think filename is wrong, i tried naming the bios file as 07WW.BIN, BIOS.BIN, BIOS.fd,...10-11-2024, 03:12 PM -
Problem is blinking power led only
i don't know exactly if it's s145-15igm or s145-14igm
have a backup bios file but i dont know the serial.. coz text already erased at the back of the cover
Mother board : fs440fs541 nm-c111 rev 1.0 2019-01-08
Already tested some of posted bios here
S145-14igm - success but invalid serial and not booting on OS
S145-15igm - success with serial and some other info in bios but still not booting on OS
already tried installing new windows but always booting on bios setup
windows installer flash drive detected on... -
Summary of BIOS Whitelist Removal Problem
Problem:
I am attempting to remove the WWAN card whitelist from my Lenovo ThinkPad T560.
Initial Findings:- My current BIOS version is N1KET58W (1.45).
- I have a CH341A programmer and have successfully created two full backups of my BIOS.
- I have the ability to use command-line tools on a Linux machine.
- I attempted to use several automated and manual patching methods on my N1KET58W (1.45) BIOS, including using hex strings. These attempts all failed.
- I concluded that the
08-12-2025, 03:01 PM -
Good morning, gentlemen, I hope you can help me with my laptop, I told you that I saved it about 2 years ago because it wouldn't turn on, now I have a ch341a programmer, I made a backup of the bios, I flashed an original downloaded from lenovo and it started, but it turned off after a few minutes, I entered the bios configuration and the brand, model, serial number, windows serial number, etc. did not appear, I request your help, I did everything I found in the forum but I could not solve it, also now it won't start again, it turns on but the fan does not turn, I will share all the information...
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