Undocumented INSYDE BIOS recovery method.-Use andy's tool to obtain possible names.

jabbahutt · Mar 7, 2025

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saronno · May 3, 2025

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ong14 · Jul 21, 2025

sathlerds said: ↑

Problem solved.

I couldn't make it work through a USB stick with crisis recovery or similar.

So, I decided to buy the CH341A recorder and flash the bios directly. In case anyone else experiences this issue on this relatively new laptop:
1 - The chip on my board is W74M12JWSIQ, this chip works with 1.8v, to avoid burning the chip with the flash programmer, buy the CH341A programmer with the 1.8v adapter. On this board it was also possible to use the tweezers (alligator clip) directly on the board, so there was no need to remove the chip from the motherboard;
2 - Download the neoprogrammer program (I used version 2.2.0.10);
3 - As for the BIOS file, I used the backup file that the program generated before messing up my motherboard. The backup file is located at C:\Drivers\Flash\(folder with timestamp)\BIOSROM.BKP and is 16MB in size;
4 - To avoid a possible component failure, before starting the procedure, I removed (disconnected) the following components from the motherboard: laptop battery, CMOS battery, NVMe card, sata SSD, network interface;
5 - The W74M12JWS chip is a winbond W25Q128 series chip with an additional write protection feature, so when you open the neoprogrammer you must click the unlock button before doing any procedure;
6 - Install the programmer drivers before executing the procedure;
7 - When I open the neoprogrammer program, the W74M12 chip will be detected is the W25Q128FW, it worked perfectly for me on this chip;
8 - To record the bios, with the neoprogrammer open, just select a functional bios file, click on the UNLOCK button, click on clean (zero) the chip, then click on record.

Here's the tip for those who are going through this.

Unfortunately I wasn't lucky enough to make it work via recovery, so here's a method that really worked on this model.

MODEL: Lenovo 15ALC6 Type 82MF Board NM-D521 (Brazilian model)

Note: Translation by google.
Click to expand...

I bought a CH341A with 1.8v adapter, but I cannot connect it with BIOS chip. Can you guide me how to do it?
Thank you.

Adel5450 · Sep 30, 2025

i got a broken laptop after failed bios update
and i got the binary file
is their a way, to restore it back
its a lenevo laptop

Shortyportuguese · Sep 30, 2025

Adel5450 said: ↑

i got a broken laptop after failed bios update
and i got the binary file
is their a way, to restore it back
its a lenevo laptop
Click to expand...

Reprogramming a BIOS chip using other PC is Guaranteed

miklik · Oct 20, 2025

Good afternoon! I have an Acer Nitro AN17-42. How do I correctly rename the .fd file to restore the BIOS via FN+ESC?
I tried
3B0B8086.fd
5AABFE02.fd
00007007.fd
BIOS.bin
BIOS.fd
DLMVA.fd
FH4ATx64.FD
H2OFFT64.bin
H2OFFT64.fd
HadesSX64.fd
ME.fd
nitro17.fd
Z5WAHX64.fd
ZPU
ZPU_V1_29.fd
ZPUA.fd

all archive file names
63C8FC24-0454-4a86-ACEF-3EABA3554BAC
ZPU.fd
platform.ini
msvcr90.dll
msvcp90.dll
mfc90u.dll
H2OFFT.cat
Microsoft.VC90.CRT.manifest
Microsoft.VC90.MFC.manifest
InterToolx64.efi
H2OFFT.inf
H2OFFT64.sys
H2OFFT-Wx64.exe
FlsHook.exe
Ding.wav
BiosImageProcx64.dll

quid · Oct 20, 2025

Should be ZPU.fd, no rename required.

Undocumented INSYDE BIOS recovery method.-Use andy's tool to obtain possible names.

jabbahutt MDL Novice

saronno MDL Novice

ong14 MDL Novice

Adel5450 MDL Novice

Shortyportuguese MDL Addicted

miklik MDL Novice

quid MDL Addicted