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Okay, thank you very much.Comment
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Hello everyone,
I am working on a Lenovo Ideapad Flex 5 14IAU7.- Motherboard model: LC57-IAU MB 213062-1
The laptop had a short circuit on the USB power distribution switch U3602 (Silergy SY6288). The IC has been successfully desoldered, and the main 3.3V and 5V power rails are now perfectly stable and clean.
However, the board is stuck in a boot loop. The 3.3V on the BIOS chip keeps dropping to 1.2V and cycling. The CPU and RAM power rails (PL5001) never lift (they just glitch to 0.020V and drop to 0V). Diode readings on all secondary rails are normal.
It looks like a clear case of ME Region / Intel Boot Guard corruption following the USB power surge.
I have attached my corrupted original backup dump read with a CH341A programmer. Could someone please help me fix it and clear the ME Region?
Thank you very much for your time and help!
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sorry i can't add up other info's based on the sticker. nothing readable anymore on it.
board:
LC57-IAU MB 213062-1N
448.0RH10.001N
No display issue on this one. tried already some posted bios file but with same result.
thanks...Comment
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This is Lenovo Flex 7 14IAU7 - Type 82VC here is Lenovo Ideapad Flex 5-14IAU7
move here: https://www.badcaps.net/forum/troubl...-flex-7-14iau7
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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... -
Lenovo ideapad slim 3 14AHP10 NM-G501 bios needed
Bios has a boot lock and I can't unlock it. I downloaded the official version from the lenovo site and tried it, but it doesn't show up. I want to unlock the original or get a bootable Bios. Please help.
BOARD PART NO.-MS4A2/MS5A2/MS6A2/ NM-G501 REV: 1.0
SN-PF5X4ATJ
MTM: 83K9000EKR
Premium supporters get full download access and other benefits.... -
Lenovo IdeaPad Flex 5 16IAU7
Model: 82R80022US
Serial: PW06RFSB
BOARD: LC57-IAU MB 213062 -1M
This is an original bios. Please fix it (Doesn't power on currently and no display)...09-12-2025, 08:49 AM -
hello. after updating the bios on the lenovo idepad flex5 14abr8 laptop, it is stuck on a black screen. It shines, but there is no image.
Motherboard code:
Lc58-abr mb
223069-2
448.0re25.0021
S/N:PW08TQNP
the original bios is attached. I would be glad if you could help....
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