Lenovo Thinkpad Ec Pwd Bypass

[zomi]

Yes you are correct..
sorry my mistake.

[munir100]

hi lenovo t490s ft 491 fx 390 nm-b891 rev 2.0 MEC1663-bao which point you short circuit to reset the password

[Maxpower3]

hi lenovo t490s ft 491 fx 390 nm-b891 rev 2.0 MEC1663-bao which point you short circuit to reset the password

https://www.badcaps.net/forum/troubl...03#post3239703

[Maxpower3]

I think the problem is which interface is used LPC or ESPI.

I have installed resistor R1310 =Disable eSPI= on my NM-D491.
But no initialization - nо image and Fan on max.

I tried several things too, but without results

[spacez]

about T14 gen 3 AMD NM-E441 rev1.0..locked with svp password ... I managed to remove this SVP password with test point in ESPI-IO3 and gnd . but instead of entering bios he asks for another password but not the SVP one . by clicking only on enter it can go into the bios. but password change is not accessible..

[Maxpower3]

about T14 gen 3 AMD NM-E441 rev1.0..locked with svp password ... I managed to remove this SVP password with test point in ESPI-IO3 and gnd . but instead of entering bios he asks for another password but not the SVP one . by clicking only on enter it can go into the bios. but password change is not accessible..

Lpc bus is still used on this model?

[salawayon]

got X1 CARBON 7TH GEN_NM-C661_MEC1663,
changed Supervisor Password (Blank), Changed System Management Password (Blank), Power ON Password (Blank) and Clear Security Chip, then Press CTRL ALT DEL to restart, but the Password still Present. did i make a mistake on this model?

Clear supervisor password with twice blank
and manager with twice blank password
Clear security chip too
After just Ctrl alt del and try
if Mec need many tries

[urani]

Hi,

Any solution for the Lenovo T14s

NM-D362 Rev: 4.0

MEC1503-EA2

Thanks

[spacez]

hello ..IF somebody can locate ESPI_IO3 for NM-D341 X1 Carbon 9th Gen . TO test somethinq. thanks in advance

[Gernet]

IF somebody can locate ESPI_IO3 for NM-D341

Use shematics and boardview https://www.badcaps.net/forum/troubl...tic#post102868

[salawayon]

Hi, i try on X1 carbon G7
NM-C661
I short pin LPC_AD0 to GND but not done
do i wrong pin?

Have you sorted out the problem? Got same unit and able to access the bios setup thru PIN 10 to GND trick but I can't disable the Supervisor Password after following the given instructions posted here.

[spacez]

Use shematics and boardview https://www.badcaps.net/forum/troubl...tic#post102868

THANKS a lot for sharing test point .. unfortunatly didnt work.. .. i need the one who is close to MEC1503H....i have aleready boardview but not clair .

[feherhollo]

For Lenovo T490s NM-B891 Which pin to short to GND?
I have checked all posts and found the schematics just need confirmation as I'm right.
I need to ground PIN 10 of the J9301?? (I will use tweezers...)

Thanks for the answer

[danito]

Maxpower3 can you help me please for a t14 gen 3 NM-E981 with NCPX997 what should be done?

[anhbanxoi]

I tried several things too, but without results

Did you try ESPI_RESET pin?

[Maxpower3]

try
T14 gen 3 AMD NM-E441 with NPCX997

try this morning ,not worked

[Maxpower3]

T14 gen 3 AMD NM-E441 with NPCX997
try this morning ,not worked

edit
after many try
I managed to enter the bios, but the tabs are missing.

The Espi connector is not connected, the resistors are missing

so it must be connected near the EC

I have to start very early to pass, well before backlighting.
I have not yet fully understood how.
I also managed to get errors like uuid or others


not yet able to remove the password

[volinakis]

Maxpower3
I confirm your genius method is working for T14 gen 1 AMD GT4A1 NM-C801 rev.1.0 Thank you very much!

[zomi]

Are you doing soon as you switch on...
time for stop watch and playing with it maybe
maybe due to fatser bus it mroe critcal the timing who knows.

[Maxpower3]

Are you doing soon as you switch on...

I have to boot a few seconds after a ctrl alt del.
just before the light

no cmos, no power button, only one card. so not much choice

time for stop watch and playing with it maybe
maybe due to fatser bus it mroe critcal the timing who knows.

the timings already change between Mec ite and ncp.
I have a slow startup on this machine, it's not easy to know when to play

this AMD model had to keep the LPC because it does not freeze easily