Lenovo T480s 20L8 bios Dump

[sweemann]

Hello,

i managed to remove the supervisor PW of my Lenovo T480s with autopatcher works like a charm.
The problem i have now is that i cant disable Secure boot. I tried many other dumps from Badcaps they do work but after flash there is the ME Version Line empty
and the bios time is up to 70 seconds. Is there any possibility that some can mod my dump to disable secure boot ?
Thank you in advance.

[hardware1]

Hello,

i managed to remove the supervisor PW of my Lenovo T480s with autopatcher works like a charm.
The problem i have now is that i cant disable Secure boot. I tried many other dumps from Badcaps they do work but after flash there is the ME Version Line empty
and the bios time is up to 70 seconds. Is there any possibility that some can mod my dump to disable secure boot ?
Thank you in advance.

Do you mean the Secure Boot option is in gray and you can't change it? Have you tried to set a supervisor password then try to change that option?

[sweemann]

Yes it is grayed out. I tried really everything setting password doesnt work for me. I dont know why.

[Stefan Steff]

I never had such problem with this bios file...

[sweemann]

Really you made my day. I dont know why but your uploaded dump seems to fit perfect. Please tell me what did you do ? Did you anything about ME Clearing ? Or is it simply one out of stock ?
As i said i patched my original dump with autopatcher because i forgot the supervisor password after that secure boot was disabled and couldnt be enabled. Every single dump i tried ihave some issues.
As i said the orig dum secure Boot loocked other dumps needed more than 60 seconds bios time and so on. I would be very happy to hear what did you do to fix my dump ?

[Stefan Steff]

Really you made my day. I dont know why but your uploaded dump seems to fit perfect. Please tell me what did you do ? Did you anything about ME Clearing ? Or is it simply one out of stock ?
As i said i patched my original dump with autopatcher because i forgot the supervisor password after that secure boot was disabled and couldnt be enabled. Every single dump i tried ihave some issues.
As i said the orig dum secure Boot loocked other dumps needed more than 60 seconds bios time and so on. I would be very happy to hear what did you do to fix my dump ?

I'm glad to hear it's working.
This bios file isn't your fixed dump, it's a dump I "cooked" for my use and because Lenovo keeps serial, model, pass and other things in EC memory this dump works without errors on any T480s.
In your case Secure Boot greyed out it's a sign of bad bios region and 60 s boot time it's a sign of corrupted ME region.
So as a conclusion, it's easier to write this stock bios than cleaning ME and writing a new bios region to a faulty bios file...

[sweemann]

yes my investigation without knowing anything at the beginning leaded me to this conclusion thats something from with ME region. I also tried to reprogram with analyzer but i think that was a way to high for me.
Thank you very much.

[Kaar3l]

Hello!
I bought a dead T480s.

At first when I tried to start it it did start with no picture and run for 15 sec and then shutdown. Pushed power button again and same cycle.

What I have tried:
1) Tried another bios from here. It did start take 0,4A and stay that way with black screen. Seemed that it doesn't do restarts.

2) Desoldered onboard ram resistors. Didn't have any effect.

Now it flashes 3 times light when power is inserted and is dead. Power button does nothing. Power button works when checking with multimeter and also 3V comes. When button pressed the 3v is pulled to 0v so power button is ok.

TYPE 20L7-001SMX
S/N PC-0YGNZY
18/10

I made dump from the original bios. Could you clean it?

[peste]

post merged..