lenovo ideapad 1 15IAU7 js476& js576 nm-e331 bios

[tuccisan]

you have everything you need at post #4...

i've flashed main and ec but no lucky: the power light keeps blinking 12 times and after turn off it restart every time in an infinite loop.
Also if i reconnect internal battery, the power light go on and after a while it turn off
the last screen before the problem was a lenovo screen with this messages: Warning: Please do not power off while BIOS self recovery processing and when it reached 100% it turned off and never turned on again.
Bios was upgraded by Windows 11 Update.

[peste]

post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

Don't post pictures unless asked...
read the forum rules..
https://www.badcaps.net/forum/troubl...before-posting

[peste]

Hi there,
lenovo v15 g3 iap
sr PF4BK78A
the backup file doesn't work and doesn't restore and now it doesn't power up anymore
it have 2 bios chip
need bios bin

you have everything you need at post #4...

[tuccisan]

Hi there,
lenovo v15 g3 iap
sr PF4BK78A
the backup file doesn't work and doesn't restore and now it doesn't power up anymore
it have 2 bios chip
need bios bin

[SMDFlea]

Please post in English !

[AGMASC]

bios extracted from Lenovo site update for.. IdeaPad 3 14IAU7, IdeaPad 3 15IAU7, IdeaPad 3 17IAU7, V14 G3 IAP, V15 G3 IAP, V17 G3 IAP, IdeaPad 1 14IAU7, IdeaPad 1 15IAU7, S14 G3 IAP
DMI 42000 - 43FFF

ES POSIBLE LA CORRECIÓN? (DMI 42000 - 43FF0)

[peste]

Could it be problem with the bios?

Checked with new lcd and new lcd flex, still no image.

Problem ocurred after watching netflix one night and the next day there is no display on the screen.

as hoaca388 said, the bios is not the problem, check the display, LVDS cable, connectors, video chipset..

[subzerillo]

Could it be problem with the bios?

Checked with new lcd and new lcd flex, still no image.

Problem ocurred after watching netflix one night and the next day there is no display on the screen.

[hoaca388]

Hi
I'm new with bios programmers.
Can use these bios dump to reprogram my bios?
I have same the bios chip as vtx86 .

My laptop turns on but no display on the screen. It works with hdmi though. So I thought maybe I have same issue as OP.

You have a problem with your computer hardware because HDMI is working fine.

[subzerillo]

IdeaPad 1 15IAU7 Laptop - Type 82VY

Hi
I'm new with bios programmers.
Can use these bios dump to reprogram my bios?
I have same the bios chip as vtx86 .

My laptop turns on but no display on the screen. It works with hdmi though. So I thought maybe I have same issue as OP.

[vtx86]

Replace chip or programmer.

I will buy another chip because the 64 bios works and verifys sucessfully, only the 128 get error.
I will donate for badcaps if this solution works and I get able to use my notebook again! Thank you very much!

[hoaca388]

Still the same blinking light and no post or video.
Maybe the 128 chip is bad and need replace? I get this message on CH341A programmer 1.29 when try to verify

Replace chip or programmer.

[vtx86]

Thank you very much I will try those bios!! 👍

Still the same blinking light and no post or video.
Maybe the 128 chip is bad and need replace? I get this message on CH341A programmer 1.29 when try to verify

[vtx86]

IdeaPad 1 15IAU7 Laptop - Type 82VY

Thank you very much I will try those bios!! 👍

[hoaca388]

SN: PE0BXJKF

IdeaPad 1 15IAU7 Laptop - Type 82VY

[vtx86]

Serial number ?

SN: PE0BXJKF

[hoaca388]

Hello, I have the Lenovo Ideapad 1 15IAU7 82VY000TBR with no post, the power light keeps blinking and after a while fan turns off
The bios chip are Winbound 25R64JVSIN and 25R128JVSN (not 25Q wich are found on the program).
I have tryed all bios above and they did not work for me, any solution or bios that I can try? Thank you

Serial number ?

[SMDFlea]

Posts moved to "1 15IAU7" thread topic.

[vtx86]

attach bios dump

Hi, there is my bios saved before trying to re-program and photo of the chip. Is that the dump?
Thank you very much every help will be very apreciated

[LBTT1121]

Hello, I have the Lenovo Ideapad 1 15IAU7 82VY000TBR with no post, the power light keeps blinking and after a while fan turns off
The bios chip are Winbound 25R64JVSIN and 25R128JVSN (not 25Q wich are found on the program).
I have tryed all bios above and they did not work for me, any solution or bios that I can try? Thank you

attach bios dump