Thinkpad E480 BIOS Dump

[robante15]

I have a Thinkpad E480. Type 20KN-003ULM

The problem it presents is that it turns on the power LED light but it never gives video. Last time it worked I left it on and unplugged. It probably discharged and never turned on again. What I found out is that a Firmware update came out that day, I would believe it was attempted to update and ended up with a corrupted BIOS update.

I have tried with other DUMP bios from other posts and they have not worked for me. Here I leave a backup of my non-functional BIOS, I hope someone can help me with my problem.
From now, thank you for you help

[hardware1]

Re: Thinkpad E480 BIOS Dump

I have a Thinkpad E480. Type 20KN-003ULM

The problem it presents is that it turns on the power LED light but it never gives video. Last time it worked I left it on and unplugged. It probably discharged and never turned on again. What I found out is that a Firmware update came out that day, I would believe it was attempted to update and ended up with a corrupted BIOS update.

I have tried with other DUMP bios from other posts and they have not worked for me. Here I leave a backup of my non-functional BIOS, I hope someone can help me with my problem.
From now, thank you for you help

Here's your new file, try it and let me know the results.

[robante15]

Re: Thinkpad E480 BIOS Dump

Here's your new file, try it and let me know the results.

I have tried the file and at least on my computer it didn't work.

I would think it may be an EC problem. Unfortunately I do not have an EC programmer

[hardware1]

Re: Thinkpad E480 BIOS Dump

I have tried the file and at least on my computer it didn't work.

I would think it may be an EC problem. Unfortunately I do not have an EC programmer

Didn't work mean no power or no display? is it doing the same symptoms like the other files?

[robante15]

Re: Thinkpad E480 BIOS Dump

Didn't work mean no power or no display? is it doing the same symptoms like the other files?

Turns on the power LED, but no image

It also doesn't turn on the fan, nor the keyboard LED. But it does charge the battery.

And yes, the behavior is the same as with other files

[hardware1]

Re: Thinkpad E480 BIOS Dump

I see that your file has EC Region, i have replaced it so you can give this file a try.

[robante15]

Re: Thinkpad E480 BIOS Dump

I see that your file has EC Region, i have replaced it so you can give this file a try.

the same behavior

[repairit.ie]

Re: Thinkpad E480 BIOS Dump

Hi Everyone!
need bios please.
Laptop turns on but black screen.
can someone post the bios for Lenovo thinkpad e480
Mobo type: 20KN-CT-1WW
S/N: PF-1J9TLL
Thank you in advance!

[hardware1]

Re: Thinkpad E480 BIOS Dump

Hi Everyone!
need bios please.
Laptop turns on but black screen.
can someone post the bios for Lenovo thinkpad e480
Mobo type: 20KN-CT-1WW
S/N: PF-1J9TLL
Thank you in advance!

Here's your New BIOS, try it and let me know the results.

[repairit.ie]

Re: Thinkpad E480 BIOS Dump

Still no display
laptop charging battery, turns on but no display. Checked the usual suspects but board still not working properly.

[skazide]

Re: Thinkpad E480 BIOS Dump

still no display
laptop charging battery, turns on but no display. Checked the usual suspects but board still not working properly.

try this

[dysk1]

Lenovo E480 NM-B421 please repair the bios

Hello everyone,

I bought a damaged laptop, one RAM slot was not working. I thought it was the Bios fault, so I uploaded one from this forum, unfortunately the laptop did not turn on anymore. I uploaded the original bios back, but the laptop no more turns on.

The laptop is charging the battery, 3V and 5V are present. After pressing the power button no reaction.

Attached is the original bios and all data. Please fix the bios.