Lenovo t460p bios password unlock

[50jaker]

Re: Lenovo t460p bios password unlock

i have some news about the laptop ,now the laptop doesnt wants to turn on only the power led blinks 3 times when i put the charger or in battery mode. i think the bios chip is faulty, for the first time when i made the dumps (i made 4 backups before the patch) and all of this dumps are broken...

i dont know now how can continue for fix it.

[hoaca388]

Re: Lenovo t460p bios password unlock

Buy a new chip, use my file to repair.

[50jaker]

Re: Lenovo t460p bios password unlock

Buy a new chip, use my file to repair.

Yeah but i have a doubt going through my head,After replacing the chip, will it be necessary to reprogram the ECROM?

[hoaca388]

Re: Lenovo t460p bios password unlock

I don't know if your EC chip needs programming or not, there seems to be a list of this chip but I don't remember where it is.

[50jaker]

Re: Lenovo t460p bios password unlock

I don't know if your EC chip needs programming or not, there seems to be a list of this chip but I don't remember where it is.

Also i talked with another guy that have some experience about this issues and say this about the Supervisor password. Also for the ECROM reprograming he say it i can do it without desoldering the chip. It is programmed without removing it from the motherboard, by means of a special SVOD or JTAG programming device, by connecting it to the motherboard via the keyboard port on the motherboard

All administrative type passwords, their encryption keys, for ''ThinPad'' series computers are stored and backed up, also in the main i / o microcontroller (ThinEngine, MEC) on the motherboard. And if you change, only the MAIN Bios chip, this information will not match, and the computer will either ask you to enter the same password again, or it will not turn on at all, or it will not turn on the screen.

There need do are two steps you can take to get rid of this administrative password,
1. Replace this MAIN Bios chip,
2. reprogram the microcontroller or replace it with another, without a password, from an identical computer, identical donor motherboard

[50jaker]

Re: Lenovo t460p bios password unlock

Buy a new chip, use my file to repair.

Update i bought the chip lets see if can fix it and revive the laptop

[50jaker]

Re: Lenovo t460p bios password unlock

https://www.badcaps.net/forum/showpo...41&postcount=3

I fixed the laptop, now its booting, i used the file T460p_Type 20FX.bin and i can acces to bios with out password, is necesary to use the another image that are the Patched one?

[hoaca388]

Re: Lenovo t460p bios password unlock

I fixed the laptop, now its booting, i used the file T460p_Type 20FX.bin and i can acces to bios with out password, is necesary to use the another image that are the Patched one?

If you can already access the bios, you don't need the patch anymore.

[50jaker]

Re: Lenovo t460p bios password unlock

If you can already access the bios, you don't need the patch anymore.

Also i have issues with the laptop doesnt start with battery, only, when i use the AC works the laptop and i needed to press the button several times. i think i needed to reprogram again with other bios or something

[50jaker]

Re: Lenovo t460p bios password unlock

Also i have issues with the laptop doesnt start with battery, only, when i use the AC works the laptop and i needed to press the button several times. i think i needed to reprogram again with other bios or something

After the bios reprograming the laptop doesnt boot only when i press power button makes a sequence like:

1- press power button
2- Laptop start keyboard light and light of the power button 1 sec
3- turn off himself with out pressing the power button
4- turn on again himself with the keyboard light and power button light again but no video and fan stops after 5 sec.

You will surely wonder if it worked and you could access the bios because you reprogrammed it again?

Basically it didn't work at all well and the PC didn't turn on when I pressed the power button, I had to press it about 30 times and with the laptop charger to turn on the laptop it was a very strange thing to explain.

[DARNO786]

i have a t460p with a power on password . Can it be removed?


sn: PF-0MRY7Y TYPE:20FX-S08N00

[SMDFlea]

Thread merged with existing topic.

[Blaze Tech]

i have a t460p with a power on password . Can it be removed?


sn: PF-0MRY7Y TYPE:20FX-S08N00

try