Lenovo flex 5-14alc05

[jeyzed]

IdeaPad Flex 5 14ALC05 Black Screen

Hello!

I'm trying to fix a roommate's friend's Lenovo IdeaPad Flex 5 14ALC05 that got bricked through Lenovo Vantage. The screen simply stays black and the Esc and Capslock LEDs are lighting up.

BIOS Chip: Winbond 74M12JWSIQ
S/N: PW003TC3
MTM: 82HU00JWUS
MO: PWN0B1B0900A
Factory ID: CQ
Type 82HU

I dumped the bios with my CH341A and NeoProgrammer.

Might someone be able to help me with this?

Thanks and regards!

[shiyab]

IdeaPad Flex 5 14ALC05 Black Screen

Hello!

I'm trying to fix a roommate's friend's Lenovo IdeaPad Flex 5 14ALC05 that got bricked through Lenovo Vantage. The screen simply stays black and the Esc and Capslock LEDs are lighting up.

BIOS Chip: Winbond 74M12JWSIQ
S/N: R91244FL
Board FRU/PN: 5B21B84990
Boardcode: 455.0MD02.0001 1A
Type 82HU

I dumped the bios with my CH341A and NeoProgrammer.

I tried writing a bios file I found on here and probably fried the chip since I only removed the laptop battery but not the CMOS battery when writing. The BIOS chip is no longer being recognized by NeoProgrammer using the CH341A through the 1.8V adapter, I just purchased a new bios chip here.

The laptop still has a black screen when turne on and the Esc and Capslock LEDs are still lighting up.

Might someone be able to help me with this?

Thanks and regards!

hi try

[jeyzed]

It didn't work :/ here's a dump of what I'm reading from the BIOS right now. I really appreciate the help, thank you!

[SMDFlea]

It didn't work :/ here's a dump of what I'm reading from the BIOS right now. I really appreciate the help, thank you!

It`s corrupt. Are you using a clip, are you using a 1.8V adapter

[jeyzed]

It`s corrupt. Are you using a clip, are you using a 1.8V adapter

I'm using both! Should I pull out the heat gun and do some surgery to remove the BIOS chip?

[SMDFlea]

I'm using both! Should I pull out the heat gun and do some surgery to remove the BIOS chip?

What sort of heat gun do you have, if it`s a proper temperature controlled hot air station then sure. If it`s one of those paint stripper 1000°F ones you will likely cause damage to the chip and board.

[jeyzed]

What sort of heat gun do you have, if it`s a proper temperature controlled hot air station then sure. If it`s one of those paint stripper 1000°F ones you will likely cause damage to the chip and board.

I was planning on ordering a proper heat gun for de-soldering, do you know good heat guns to purchase?

[SMDFlea]

I was planning on ordering a proper heat gun for de-soldering, do you know good heat guns to purchase?

I don`t know what to recommend, depends on your budget. Try this bios, it has your DMI included from post 203. I don`t know which post shiyab replied to but the serial number is different, and he did not add any DMI to the bios. Try again with the clip. keep it steady

[jeyzed]

I don`t know what to recommend, depends on your budget. Try this bios, it has your DMI included from post 203. I don`t know which post shiyab replied to but the serial number is different, and he did not add any DMI to the bios. Try again with the clip. keep it steady

It did not work and I'm getting the same probably corrupted bios dump from the chip. I ordered a new chip and I'll try to replace it and dump the bios you provided. Thank you for the dump!

[Shako]

Hi guys. Can you please help me with my BIOS? Can you repair it, I would like to keep my S/N in BIOS. Lenovo Ideapad Flex 14alc05 Ryzen 3, 8GB RAM

S/N: PW00Z070
MTM: 82HU00E9GE
MO: PWN0B2117001



Thank you very much.

[volinakis]

Hi guys. Can you please help me with my BIOS? Can you repair it, I would like to keep my S/N in BIOS. Lenovo Ideapad Flex 14alc05 Ryzen 3, 8GB RAM

S/N: PW00Z070
MTM: 82HU00E9GE
MO: PWN0B2117001



Thank you very much.

try

[Shako]

try

It works 🙂🙂 Thank you very very much. This is my first laptop that I managed to save. I am still learning. Thank you. Thank you.

[volinakis]

It works 🙂🙂 Thank you very very much. This is my first laptop that I managed to save. I am still learning. Thank you. Thank you.

you are welcome. Try to read bios guides made by masters of this forum, is very useful.
https://www.badcaps.net/forum/troubl...t=phoenix+bios

[Shako]

you are welcome. Try to read bios guides made by masters of this forum, is very useful.
https://www.badcaps.net/forum/troubl...t=phoenix+bios

Hi. First thank you one more time for yesterday. I am sorry that I am writing here I couldnt find the right post. I told my friend today how you helped me with the BIOS and he sad that he also has a laptop with same symptoms like my had. He has Yoga 9 14IAP7 and I found 4 BIOS chips 3 from winbond and one giga device. I only managed to extract bios data from gigadevice chip. I tried guides that you sent me here yesterday but I guess I am not that good yet 😔 Can you please help me with this file as well. Thanks in advance.
Lenovo Yoga 9 14IAP7
S/N: PF3LTW28 MO: PF9XB2321393
MTM: 82LU006GE

[SMDFlea]

Hi. First thank you one more time for yesterday. I am sorry that I am writing here I couldnt find the right post. I told my friend today how you helped me with the BIOS and he sad that he also has a laptop with same symptoms like my had. He has Yoga 9 14IAP7 and I found 4 BIOS chips 3 from winbond and one giga device. I only managed to extract bios data from gigadevice chip. I tried guides that you sent me here yesterday but I guess I am not that good yet 😔 Can you please help me with this file as well. Thanks in advance.
Lenovo Yoga 9 14IAP7
S/N: PF3LTW28 MO: PF9XB2321393
MTM: 82LU006GE

Only bios requests for the flex 5-14alc05 should be posted in this thread topic. I have copied your post to a new thread --> https://www.badcaps.net/forum/troubl...-9-14iap7-bios

[Shako]

Only bios requests for the flex 5-14alc05 should be posted in this thread topic. I have copied your post to a new thread --> https://www.badcaps.net/forum/troubl...-9-14iap7-bios

Ok sorry for that. Thank you.

[marknolan]

Model: IdeaPad Flex 5 14ALC05
Serial: R912JSQ8
MTM: 82HU00BXUK

Failed during Windows BIOS update. Black screen on boot. All help very much appreciated!

[SMDFlea]

post moved to 5 14ALC05 thread topic. Post your backup..

[ismailakyoltr]

Model : IdeaPad Flex 5 14ALC05
Serial : PW00B7A2
Mtm : 82HU007FTX
Bios Ic : 74M12JWSIQ
Mb : LC56-14A SVT 203021-1 448.0MD07.0011
IO : NPCE386PB0DX

He screen black and Capslock LEDs are lighting up.

Thank you.

[peste]

Model : IdeaPad Flex 5 14ALC05
Serial : PW00B7A2
Mtm : 82HU007FTX
Bios Ic : 74M12JWSIQ
Mb : LC56-14A SVT 203021-1 448.0MD07.0011
IO : NPCE386PB0DX

He screen black and Capslock LEDs are lighting up.

Thank you.

see post #15.
https://www.badcaps.net/forum/troubl...05#post1849513

[ismailakyoltr]

see post #15.
https://www.badcaps.net/forum/troubl...05#post1849513

I extracted it with 7zip but the size is not full. I can't do it. And when I run it, it is not in temp.