Lenovo flex 5-14alc05

[freenlnl]

Lenovo IdeaPad Flex 5 14ALC05 i think bricked through Lenovo Vantage. The screen black and Capslock LEDs are lighting up

Could please rebuild?

SN - PW0309GV

[paddymoney]

Hi, i get a Lenovo ideapad Flex 5 14ALC05 and i do an bios Update. After that i got a black screen. keyboard is lighting and nothing else. remove battery dont solve the issue.
now will buy an CH341A and flash the bios again. Can i use an bios file from here and flash the bios again with the tool from CH341A?
The BIOS chip is left side from the cpu right?

here the data from the laptop:
IdeaPad Flex 5 14 ALC05
Mfg Date: 2021/11/04
S/N: PW002VZE
BIOS IC 74W12JWSIQ 2140
MTM: 82HU00GGEE
MO: PWN0B1B0400Q
LC56-14A SVT
203021-1
448.OMD08.0011

[kalilinux25]

If you can post a clear picture It will be a big help to assist you

[paddymoney]

Is this thie BIOS Chip? Than Put in the Chip the ch341a right? https://www.amazon.de/TECNOIOT-CH341.../dp/B07RKXSMKH

[volinakis]

Is this thie BIOS Chip? Than Put in the Chip the ch341a right? https://www.amazon.de/TECNOIOT-CH341.../dp/B07RKXSMKH

pic is not that clear, what is written on chipset_? 74W(H, M)12JWSIG? If it is you also need a 1.8V adapter.

[paddymoney]

pic is not that clear, what is written on chipset_? 74W(H, M)12JWSIG? If it is you also need a 1.8V adapter.

here the data from the laptop:
IdeaPad Flex 5 14 ALC05
Mfg Date: 2021/11/04
S/N: PW002VZE
BIOS IC 74W12JWSIQ 2140
MTM: 82HU00GGEE
MO: PWN0B1B0400Q
LC56-14A SVT
203021-1
448.OMD08.0011

[volinakis]

here the data from the laptop:

BIOS IC 74W12JWSIQ 2140

yep, you also need 1.8V adapter. Use ASProgrammer or NeoProgrammer for CH341A and read chipset 3-4 times and compare results with HxD (Analyze tab). When you have 2 identical reads it means you have a good backup. I advise you to read Bios Guide of this forum if you are doing this for 1st time.

https://www.badcaps.net/forum/troubl...t=phoenix+bios

[paddymoney]

yep, you also need 1.8V adapter. Use ASProgrammer or NeoProgrammer for CH341A and read chipset 3-4 times and compare results with HxD (Analyze tab). When you have 2 identical reads it means you have a good backup.

You mean this right? https://www.amazon.de/EEPROM-Program...1&gad_source=1

[volinakis]

You mean this right? https://www.amazon.de/EEPROM-Program...1&gad_source=1

yes, this one has 1.8V adapter included in kit.

[paddymoney]

yes, this one has 1.8V adapter included in kit.

Fine, do you have a manual, how i should handle the kit? IT IS my First time to try to flash a BIOS Chip...

[volinakis]

Fine, do you have a manual, how i should handle the kit? IT IS my First time to try to flash a BIOS Chip...

search on youtube how to use CH341A

[paddymoney]

search on youtube how to use CH341A

I will do it. Which bios file i can use to flash the BIOS?

[volinakis]

I will do it. Which bios file i can use to flash the BIOS?

1st you have to read your bios chipset even it is faulty and post the backup here.

[paddymoney]

1st you have to read your bios chipset even it is faulty and post the backup here.

Ok, when i write after that an bios file from here, i get an error with the serial number and windows license right?
is this old procedure maybe possible? https://forums.lenovo.com/t5/Lenovo-...3208?page=1

[paddymoney]

The name from thei BIOS chip is "74W12JWSIQ" shoud i use the 25 bios chip area on the ch314a tool? i cannot find the information in google...

[SMDFlea]

The name from thei BIOS chip is "74W12JWSIQ" shoud i use the 25 bios chip area on the ch314a tool? i cannot find the information in google...

Yes.

[paddymoney]

Yes.

And choose in NeuProgrammer this chip: "W25Q128FW"
Because i cannot find "74W12JWSIQ" in the list.

[paddymoney]

BIOS is flashed, now my PC is working to copy the SN and so on and Windows Key informations to an working bios file was easy. Thanks to all for help

[SMDFlea]

You`re welcome :-)

[Everest Topi]

Lenovo flex5 14alc05

Lenovo IdeaPad Flex 5 14ALC05 i think bricked through Lenovo Vantage. The screen black and Capslock LEDs are lighting up
s/n PW004F3G
MTM 82HU00GEGE
455.0MD02.0003
Please help transfer serial number and activation code

[SMDFlea]

Lenovo flex5 14alc05

Lenovo IdeaPad Flex 5 14ALC05 i think bricked through Lenovo Vantage. The screen black and Capslock LEDs are lighting up
s/n PW004F3G
MTM 82HU00GEGE
455.0MD02.0003
Please help transfer serial number and activation code

Try this https://www.badcaps.net/forum/troubl...95#post1769295