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Unlock tool

SL300/SL400/SL500, L400-L420 and L500-L520 Series
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PeterLinu
Posts: 15
Joined: Sat Feb 12, 2022 8:34 pm
Location: Sydney, Australia

Unlock tool

#1 Post by PeterLinu » Mon Aug 07, 2023 6:57 pm

Hiyall,
I have the opportunity to purchase several older Thinkpads at a very cheap price. Trouble is, they're all 'locked' by a government department and there is no chance of retrieving the passwords. I understand that there is a tool that will do the job.
Can I buy it or make it?

RealBlackStuff
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Posts: 23765
Joined: Mon Sep 18, 2006 5:17 am
Location: Loch Garman, Éire

Re: Unlock tool

#2 Post by RealBlackStuff » Mon Aug 07, 2023 9:49 pm

https://www.youtube.com/watch?v=5z0HdLqgR_I
Made by a Forum member.
Works on most older Thinkpads up till and including xx30 models.
All you basically need is a pointed tweezer and steady hands.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.

PS: the old Boardroom website is still available on the Wayback Machine
.

PeterLinu
Posts: 15
Joined: Sat Feb 12, 2022 8:34 pm
Location: Sydney, Australia

Re: Unlock tool

#3 Post by PeterLinu » Tue Aug 08, 2023 2:28 am

What about newer Thinkpads?

RealBlackStuff
Admin Emeritus
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Posts: 23765
Joined: Mon Sep 18, 2006 5:17 am
Location: Loch Garman, Éire

Re: Unlock tool

#4 Post by RealBlackStuff » Tue Aug 08, 2023 3:49 am

For newer ones (from xx40 onward) you need an EEPROM reader/programmer/writer such as CH341A plus an 8-pin testclip and all sorts of weird and wonderful programs.
Plus you need to know where and what to change in the BIOS-readout.
For some of those (e.g. T440p), specific instructions/webpages have been made.
You're on your own from here on.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.

PS: the old Boardroom website is still available on the Wayback Machine
.

PeterLinu
Posts: 15
Joined: Sat Feb 12, 2022 8:34 pm
Location: Sydney, Australia

Re: Unlock tool

#5 Post by PeterLinu » Tue Aug 08, 2023 7:03 am

I'm not that interested. Thanks anyway.

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