lenovo js476& js576 nm-e331 bios

[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..

[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)

[SMDFlea]

Please post in English !

[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

[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]

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.

[ghass]

hi i need nm-e331 kbc vertyanov pinout it is 256kb

[Adrian Skotniczny]

hi j nedd bios for lenovo ideapad 1 15IAU7 S.N PF4D1TAV

[peste]

hi j nedd bios for lenovo ideapad 1 15IAU7 S.N PF4D1TAV

post the contents of the bios chip even if it is corrupted..

post S/N, full name and model, motherboard model,TYPE,

[ordinateur]

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

Wrote the first file 16MB in size after I made a backup first which is also 16MB in size, and now it behaves a little differently, but still no power ON laptop. I read also the second chip near it which is 8MB in size and uploaded here if you can help me, thanks so much

P.S. I didn't wrote the second file that you have here which is 256 KB in size as my second BIOS chip is 8MB in size after reading backup..,,

[ordinateur]

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.

Which one of the chips is EC if you can tell me, because the 2 chips that are near one another are one Main chip 16MB in size and the other one is 8MB which I don't believe is the EC chip as EC chip has 256 KB in size when dumped?

Best regards

[ordinateur]

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

As I wrote this 16MB file and it did not work, now I notice that there is a fresh new BIOS uploaded on Lenovo site, but I am unable to extract both the firmwares.bin from that file using this tutorial here:
https://github.com/liho98/lenovo-bio...traction-guide


Can you help us out or tell how to do extraction of this new file here at this link?
https://pcsupport.lenovo.com/us/zh/p...eapad-1-15iau7


It seems that on the original file from Lenovo (JKCN50WW) which is around 26 MB in size, are packaged both BIOS-es the one 8 MB in size and the 16MB in size

[peste]

As I wrote this 16MB file and it did not work, now I notice that there is a fresh new BIOS uploaded on Lenovo site, but I am unable to extract both the firmwares.bin from that file using this tutorial here:
https://github.com/liho98/lenovo-bio...traction-guide


Can you help us out or tell how to do extraction of this new file here at this link?
https://pcsupport.lenovo.com/us/zh/p...eapad-1-15iau7


It seems that on the original file from Lenovo (JKCN50WW) which is around 26 MB in size, are packaged both BIOS-es the one 8 MB in size and the 16MB in size

you have everything you need at post #4..

[Adrian Skotniczny]

hi j nedd bios dla lenovo ideapad 1 15IAU7 S.N PF4D1TAV JS576

[SMDFlea]

hi j nedd bios dla lenovo ideapad 1 15IAU7 S.N PF4D1TAV JS576

Please post in english, and post your backup in a zip or rar file.

[ordinateur]

Wrote the first file 16MB in size after I made a backup first which is also 16MB in size, and now it behaves a little differently, but still no power ON laptop. I read also the second chip near it which is 8MB in size and uploaded here if you can help me, thanks so much

P.S. I didn't wrote the second file that you have here which is 256 KB in size as my second BIOS chip is 8MB in size after reading backup..,,

Got the DMI infos as you propose on other thread with Hxd from my DUMP backup attached here in the thread, and Paste Wrote with HxD at the exact addresses (DMI 42000 - 43FFF) on the 16MB file that you shared, and wrote the full file with RT809 but again the same the laptop doesn't power ON

My laptop infos are :
Serial PF4A83NG
Model Name V15 G3 IAP
MTM: 82TT00A5RM
MO: PF9XB3512123