Lenovo T450s Bios bricked

[530v8]

After circuit SDA and SDL I have only black screen.
Tried some Bios Dumps but getting 5 beeps pause 5 beeps

FRU: 00HT748

Somebody who can help?

[530v8]

Re: Lenovo T450s Bios bricked

Somebody can repair original bios dump?
When I flash back only the fn LED lights up and that's all. When I flash other dump it makes 5 beeps pause 5 beeps

[SMDFlea]

Re: Lenovo T450s Bios bricked

You should have waited for a reply in the other thread you posted in .

https://www.badcaps.net/forum/showth...=65996&page=12

[530v8]

Re: Lenovo T450s Bios bricked

You right but dumping so much files so corrupt it now
Trying to get to life

[530v8]

Re: Lenovo T450s Bios bricked

So I had 2 of t450s with bios pw .
Made an dump of the working ThinkPad and flashed it to the bricked one with flashrom. Nothing happens it goes on keyboard backlit is working but no screen.
Any other ideas?

[530v8]

Re: Lenovo T450s Bios bricked

Anybody knows if possible to flash only ec chip?

[530v8]

Re: Lenovo T450s Bios bricked

Ok had some luck maybe
after flashing this dump attached
it now boots up and says
Bad CRC security settings in EFI Variable

you can only type F1 for entering Setup but it wants an Password for this
tried to indeed the lenovotransalteservice and bootoptions like threads before but no luck

anyone an idea?

[Maxpower3]

Re: Lenovo T450s Bios bricked

Ok had some luck maybe
after flashing this dump attached
it now boots up and says
Bad CRC security settings in EFI Variable

you can only type F1 for entering Setup but it wants an Password for this
tried to indeed the lenovotransalteservice and bootoptions like threads before but no luck

anyone an idea?

beep and no screen with patched version??
try with button hold on the mainboard

you have to wait before it lights up at least 30/45 sec.it will turn on and off several times by itself.

[530v8]

Re: Lenovo T450s Bios bricked

i hold that switch
will wait

Screenshot attached
i replace lenovotranslateservice and PE32 Image Section "Replace as is "

[Maxpower3]

Re: Lenovo T450s Bios bricked

Ok had some luck maybe
after flashing this dump attached
it now boots up and says
Bad CRC security settings in EFI Variable

you can only type F1 for entering Setup but it wants an Password for this
tried to indeed the lenovotransalteservice and bootoptions like threads before but no luck

anyone an idea?

"T450s clean.rar"
it's bios OK or bios patched ?

[530v8]

Re: Lenovo T450s Bios bricked

"T450s clean.rar"
it's bios OK or bios patched ?

thats an bios from forum that lights up the 450s
the original dump does not showing anything and not booting anymore

attached original dump

[Maxpower3]

Re: Lenovo T450s Bios bricked

thats an bios from forum that lights up the 450s
the original dump does not showing anything and not booting anymore

attached original dump

try

no battery ,no cmos battery etc...
pass setup 1234

[530v8]

Re: Lenovo T450s Bios bricked

try

no battery ,no cmos battery etc...
pass setup 1234

thanks will try it

[Maxpower3]

Re: Lenovo T450s Bios bricked

oops, i patched the original which doesn't work right ??

[530v8]

Re: Lenovo T450s Bios bricked

oops, i patched the original which doesn't work right ??

Yeah right this original doens´t work
but will try it again

[530v8]

Re: Lenovo T450s Bios bricked

so first dump not worked
only 5 beeps pause and 5 beeps
trying 2. dump

[530v8]

Re: Lenovo T450s Bios bricked

oops, i patched the original which doesn't work right ??

second dump boots up but hangs on thinkpad logo nothing happens
any idea?
CMOS battery and all other batteries are removed
Edit:
Worked after pressing F1 so need to flash back the clean dump or what to do next?

[Maxpower3]

Re: Lenovo T450s Bios bricked

backup bios t450s clean

[530v8]

Re: Lenovo T450s Bios bricked

you have to press F1 to boot setup?? and nothing

nothing happens it hangs with an _ sign
Edit:
try to flash t450s_clean dump back

Thanks
Where is my fault? Work with UEFITOOLS 0.26

[Maxpower3]

Re: Lenovo T450s Bios bricked

0.26 me too,just patched bootoptions and translate ,only body