Supervisor password on Lenovo T490 and T490s

[xmasterboss]

Hy everyone, my first thread. Has anyone succeeded in removing SVP stored in the MEC1663 chip in the T490 and T490s? I have a MEC Progammer but I don't know where to connect the wires. Also I undertand that if you erase the eeprom portion of the chip the serial number, mac address and other information are lost. One other forums someone said that if you solder a new chip the bios writes in it what it has too and the laptop works. I don't really want to begin soldering new BGA chips and destroying the laptop.

[stj]

Re: Supervisor password on Lenovo T490 and T490s

that wont work,
look here:
https://www.badcaps.net/forum/showthread.php?t=81573

[xmasterboss]

Re: Supervisor password on Lenovo T490 and T490s

I know about the patched bioses which modify hardware ID but there isn t one for the T490s

[black0hackers]

Re: Supervisor password on Lenovo T490 and T490s

some one done with it?

[andrew25]

Re: Supervisor password on Lenovo T490 and T490s

i also have one t490s computrace enabled... i need patched dump

[Kodza]

Re: Supervisor password on Lenovo T490 and T490s

Hello guys I need a patch for lenovo T490s, I have one with computrace. Any help would be appriciated

[Nico Latour]

Re: Supervisor password on Lenovo T490 and T490s

old dxe driver unlock dont work, the 7 gen and up have other method

[Kodza]

Re: Supervisor password on Lenovo T490 and T490s

Thanks for the reply but do you know the other method?

[RethoricalCheese]

Re: Supervisor password on Lenovo T490 and T490s

You need RT809 or vertyanov, change jtag_rst resistor from pulldown to pullup. Attach programmer to MEC jtag. Read, erase, rewrite (or just delete password section if you use vertyanov).

[smiley60]

Re: Supervisor password on Lenovo T490 and T490s

You need RT809 or vertyanov, change jtag_rst resistor from pulldown to pullup. Attach programmer to MEC jtag. Read, erase, rewrite (or just delete password section if you use vertyanov).

where is the password section

[smiley60]

Re: Supervisor password on Lenovo T490 and T490s

old dxe driver unlock dont work, the 7 gen and up have other method

where can i find the method i have a t490 locked bios

[RethoricalCheese]

Re: Supervisor password on Lenovo T490 and T490s

where is the password section

Not there. Read my quote again

Do you even have vertyanov or rt809?

[smiley60]

Re: Supervisor password on Lenovo T490 and T490s

Not there. Read my quote again

Do you even have vertyanov or rt809?

yes i have rt809h

[RethoricalCheese]

Re: Supervisor password on Lenovo T490 and T490s

then move jtag_rst resistor from pull-down to pull-up, attach rt809h to mec jtag, read, write and it's unlocked.

[smiley60]

Re: Supervisor password on Lenovo T490 and T490s

then move jtag_rst resistor from pull-down to pull-up, attach rt809h to mec jtag, read, write and it's unlocked.

dont want any modifying
just read erase write
AND WHERE IS THIS MEC JTAG
IM A LITTLE NOOB

[RethoricalCheese]

Re: Supervisor password on Lenovo T490 and T490s

Yes, no modify needed. There's another topic about mec, search for it and read.

[smiley60]

Re: Supervisor password on Lenovo T490 and T490s

Yes, no modify needed. There's another topic about mec, search for it and read.

AND WHAT ABOUT MODIFYING U5502 THE LITTLE 1 MB CHIP

[RethoricalCheese]

Re: Supervisor password on Lenovo T490 and T490s

Why?

[nabilgo]

supervisor password lenovo t490s

supervisor password lenovo t490s any way to unlock it ????

[andrew25]

Re: Supervisor password on Lenovo T490 and T490s

then move jtag_rst resistor from pull-down to pull-up, attach rt809h to mec jtag, read, write and it's unlocked.

can you help me in locating the jtag_rst resistor from pull-down to pull-up.. with picture pointing location please