Lenovo Thinkpad T495 AMD bios password locked

[gsoft]

Please can you answer me? There is a way to patch the t495 bios? Thank you so much

[Maxpower3]

Please can you answer me? There is a way to patch the t495 bios? Thank you so much

clear password and security,load by default. restart
and restore original BIOS after

otherwise password disappears forever

[gsoft]

Thank you for answer.
Sorry but I need to understand before doing something wrong.
I need to flash this firmware and the follow the same steps indicated in the autopatcher tutorial?

Thanks again

[Maxpower3]

Thank you for answer.
Sorry but I need to understand before doing something wrong.
I need to flash this firmware and the follow the same steps indicated in the autopatcher tutorial?

Thanks again

flash this bios .
Enter setup with f1
clear password with two blank password and clear security chip
save and exit
after reload your original bios

[gsoft]

flash this bios .
Enter setup with f1
clear password with two blank password and clear security chip
save and exit
after reload your original bios

Please can you explain "clear security chip"??
Sorry but I never do it before.

Thanks

[Maxpower3]

Please can you explain "clear security chip"??
Sorry but I never do it before.

Thanks

look

[gsoft]

look

Thanks really thanks.
I will try and then update you

[gsoft]

Sorry I can't try it now because soic8 clip not want to fit on chip 😞 I ordered a new one hoping it fit better

[gsoft]

Because with the clip I have problem ti CLAMP the IC, do you think this che be good for a winbond 25q128fw?



https://a.aliexpress.com/_EuNeV8J

Thanks

[bnc_]

Hey,

It's my first time trying this.
I have recently got a T495 (S/N: PF-1ZY53R) with a locked BIOS. I managed to desolder the chip and read it, however I can't seem to get the patched one working with the autopatcher.
I would like to do it myself if possible, however I have zero experience. When I flash the patched version, the notebook plays the music and fan keeps going with black screen. It works when flashing the original dump but still has the password obviously.

Info: I have disconnected the internal display (it doesn't work) cable and I connected an external monitor by HDMI. The original BIOS shows up on the external screen.

Does anyone know what I'm doing wrong? I've attached both dump files.

Thank you in advance.

[bnc_]

Hey,

It's my first time trying this.
I have recently got a T495 (S/N: PF-1ZY53R) with a locked BIOS. I managed to desolder the chip and read it, however I can't seem to get the patched one working with the autopatcher.
I would like to do it myself if possible, however I have zero experience. When I flash the patched version, the notebook plays the music and fan keeps going with black screen. It works when flashing the original dump but still has the password obviously.

Info: I have disconnected the internal display (it doesn't work) cable and I connected an external monitor by HDMI. The original BIOS shows up on the external screen.

Does anyone know what I'm doing wrong? I've attached both dump files.

Thank you in advance.

Bumping, sadly couldn't get it to work yet.

[volinakis]

Bumping, sadly couldn't get it to work yet.

try and follow instructions from autopatcher.
[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

[bnc_]

Thanks, it seems I have killed the chip by desoldering and soldering it too many times as it's not even detected by the programmer now. I have ordered a few pieces of the same chip so I could check. I will update as soon as I get them.

[buglerbalint]

try and follow instructions from autopatcher.
[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

Can confirm, it's WORKING! Thanks! 👌

[volinakis]

Thanks, it seems I have killed the chip by desoldering and soldering it too many times as it's not even detected by the programmer now. I have ordered a few pieces of the same chip so I could check. I will update as soon as I get them.

yep, happens to me too with MX (Macronix) chipsets. I advice you to use Winbond, more resilient to multiple desoldering.

[volinakis]

Can confirm, it's WORKING! Thanks! 👌

good news, so you used patched file I built for bnc_ and worked for you, right?

[bnc_]

try and follow instructions from autopatcher.
[ HOW TO USE THE PATCH ]
STEP 1: Flash and replace current BIOS with the generated patch file
STEP 2: Boot the machine
STEP 3: Press ENTER/F1/etc. to enter BIOS settings
STEP 4: Enter any character when asked for Supervisor Password
STEP 5: Press enter when it shows Hardware ID
STEP 6: Press space bar 2x when asked
STEP 7: Turn off machine
STEP 8: Restore original BIOS
STEP 9: Reset BIOS settings to factory default

My new chip just arrived and I managed to get the laptop working with your patched file! Thank you!

[volinakis]

My new chip just arrived and I managed to get the laptop working with your patched file! Thank you!

you are welcome

[gsoft]

Please can you help me. I erase the chip, then flash the bin patched and now if I turn on the laptop I have a black screen, the fan start to run but then stops and nothing else...
How can I get the laptop boot again?

Thanks

[volinakis]

Please can you help me. I erase the chip, then flash the bin patched and now if I turn on the laptop I have a black screen, the fan start to run but then stops and nothing else...
How can I get the laptop boot again?

Thanks

let me understand: you used a patched bios from another laptop and now if you write back original bios laptop has black screen? Post original bios backup and serial number, as in rules and explain what you did.