you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow
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I see , thank you, I was think to do it via reboot FN+R or FN+B. in this case i need to go to specialist ..Comment
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Yes, is doing the same , black screen , keyboard lighted , then only caps and esc on (with light ) and it seems is repeating this, keyboard light then only Caps and Esc , so onComment
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Hello ,can someone help with this amd bios, it didn't turn on anymore after a flash from windows ESC blinking
Ideapad flex5 14ARE05 SN R911YHMD - MTM 81X200E1CF - MO R9N0B131200QComment
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help me to unlock the amd psp from MFG mode, and serial number is not detected on my bios
Lenovo Flex 5-14ARE05 Laptop (ideapad) - Type 81X2
currently bios version EECN44WW
serial number R90Y2HQG
mtm 81X2000WUS
mo R9N0B0429007
factory id KS
processor Ryzen 5 4500U
ram 8gb
vga amd radeon tm graphics
Thanks!Last edited by soulandkey; 01-05-2026, 12:06 PM.Comment
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If you have a BIOS backup before you flashed new BIOS, the DMI can be copied from original (corrupt) BIOS to a new BIOS, here are the offsets, use hex editor
Lenovo Flex 5-14ARE05 Laptop (ideapad) - Type 81X2
DMI B21000-B213FF
Win key B10000-B100BF
Otherwise if you don't have a backup of the corrupt BIOS try Golden Key USB to fill S/N, MTM, etc.
https://www.badcaps.net/forum/troubl...e4#post3748093Comment
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how to run golden key usb? which one i download?
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It says in the post I linked...
Win32diskimager: https://sourceforge.net/projects/win32diskimager/
You need a blank/empty USB drive, otherwise it will delete all data on it
The file by AHSAN TARIQ is meant to be flashed with a programmer directly to the BIOS chip
If you want the update.exe from Lenovo, earliest version available is EECN42WW https://download.lenovo.com/consumer...s/eecn42ww.exeComment
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Hello,
I recently tried updating the BIOS on my Lenovo IdeaPad Flex 5 and after about 15 - 20 minutes of waiting and a few restarts, the screen was completely black. I tried a bunch of different recovery methods but none seemed to work. I managed to get a BIOS dump using the tools I had on hand, but after looking into what I had to do in order to keep device data like UUID, SN, MAC address etc. I was a little intimidated and feared I might mess up and irreversibly damage my board. Was hoping someone much more knowledgeable with these things could create a usable BIOS as I'm way out of my depth here.
Device Specs:
Model: Lenovo IdeaPad Flex 5 14ARE05
CPU: AMD Ryzen 5 4500U
SN: R91281DR
Board ID: LNVNB161216
P/N: 5B20S44391
I have both the BIOS dump from the board and the extracted CAP file from the latest Lenovo BIOS update version EECN44WW. I believe the original BIOS version on my machine was EECN33WW but I'm not 100% sure. Was hoping someone could rebuild/merge the NVRAM, PSP/SMU firmware, and Board-specific data with the BIOS in the CAP file. If anything else is needed don't hesitate to let me know. Thanks in advance for any help.
BIOS Dump & CAP File:
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Hi There
can anyone help me to fix this Lenovo bios files cruued not working
no boot
no display no touch
no touchpad
Thanks
Comment
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my laptop is lenovo flex 5 14ITL05
recently my power supply for this laptop developed a fault.
which caused a short in my usb c port -- verified with a new charger.
rant: so, i went to the repair tech in my country, he asked for a huge repair cost when i decided to get it done someplace else this "great person" nicked my bios chip, asked me to be aware for repair scams lol.
I was stupid and unable to find the flaw at the moment. Another repair tech told me that my bios chip was stolen and an 8mb bios chip is in place of that. he told me that a 32... -
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 -
Hello,
I have a Lenovo Thinkbook 15 G2 ITL i5 Laptop (serial number: MP2BFZEF) that when I turn it on, the led on the power button lights up for 5 seconds, then goes out. There's no display and nothing happens.
So I thought it was a Bios problem.
I found 3 bios chips on the board, which I read with a bios programmer: two XMC model bios chips and a Winbond model bios chip. Each XMC model bios chip has two partitions named XM25QH128A [3.3V] and XT25F128A [3.3V]. And the Winbond model bios chip has three partitions named W25Q80BL 3.3V, W25Q80xV 3.3V and W25Q80DV 3.3V.... -
Hi everyone,
My Lenovo Legion Y540 (i7-9750H, RTX 2060) bricked after I downgraded from BHCN44WW to BHCN21WW.
Laptop stopped booting entirely.
I used a CH341A programmer to dump the corrupted 16MB BIOS.
i then attempted the following:- Downloaded stock BIOS BHCN39WW from Lenovo
- Trimmed it to 16MB
- Extracted the BIOS region from the corrupted dump
- Extracted the BIOS region from the stock 39WW
- Replaced the corrupted BIOS region with the stock one (within hxd , opened the corrupted dump and replaced its region by the stock)
- Injected back my LDGB / DMI
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Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e - Stuck with 0275 Error CMS
Hello everyone,
I am attempting a repair on a Lenovo ThinkPad Yoga 11e that is currently stuck at boot with the error: "0275 error CMS" even after setup new bios battery and will not allow me to enter the BIOS/Setup.
This is a critical issue that I believe requires flashing the BIOS chip directly using a programmer (e.g., CH341A/RT809H), as standard software updates or resets are not possible.
I have opened the laptop and identified the main BIOS chip...
Comment