Originally posted by Rexer Anthony
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Supervisor password on Lenovo T490 and T490s
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Originally posted by jozlar View Postplease help mec unnlock
https://www.badcaps.net/forum/troubl...e4#post3342869
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Hi.
I have a Lenovo T490 (S/N PF-1DN15F / Type 20N3-S1J700) laptop that requests fingerprint authentication or password when powered on:
I've tried to unlock the laptop by following the instructions posted here and here, but so far I've had no luck.
I bought an RT809H programmer and:- Installed the iFix Programmer Software version 20240116
- Disassembled the laptop and removed the motherboard
- Removed the CMOS Battery
- Moved the 10K resistor to a new location
- Soldered 5 wires (TMS, TDI, TDO, TCK, GND) from JTAG1 in the motherboard, to the RT809H programmer
- Connected the Laptop A/C Adapter to the motherboard so that it has power (I don't try to "turn the laptop on" by pressing any button)
- Tried to read the chip from the Programmer software using the SMSC MEC1633_256K Partnumber (Also tried MEC1633 #ISP)
MEC Chip ID: 0xFFFFFFFF
ID verification error.
Why is it not working? 🤔
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Hello , I hope someone can help me. I have an Lenovo T490 with motherboard FT490/FT492/FT590/FP531 NM-B901 Rev:1.0 2018-12-28. This laptop looks to have an bios supervisor password because if i type enter it shows bios information but I cant edit anything. My question is if this is posible to clear that password. And it some one can tell me the steps if posible. Thank you!
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Originally posted by juanespty View PostHi.
I have a Lenovo T490 (S/N PF-1DN15F / Type 20N3-S1J700) laptop that requests fingerprint authentication or password when powered on:
Why is it not working? 🤔
Maybe you could try to follow this guy's Mec1663Clearpassword dump.
https://www.badcaps.net/forum/troubl...e4#post3203421
Using Mec1633_256K, you can't used auto detect IC on that, because its a MEC1663
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