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Joe's KeyMaker KMX1 and KMX2 can Recover or Clear Supervisor Password from all current ThinkPad models with the exception of the SL300,SL400,SL500 and G550, it can do this even if TPM/TCPA/PC8394T/8356908  security has been enabled

SL300,SL400,SL500 and G550 do NOT store Supervisor Password [SVP] in an EEPROM, that is the reason the SVP cannot be recovered from an EEPROM by KMX1 or KMX2 - therefore no use in searching for an EEPROM in those models.

SOME EEPROM Locations and Type

The list of links to ThinkPad models above is NOT a complete list of all the ThinkPad models that can be unlocked using KMX1 or KMX2

If a ThinkPad model is not listed above
That DOES NOT MEAN KMX1 or KMX2 cannot unlock that ThinkPad model.

What it DOES mean is that either I don't have a PHOTO of that model's EEPROM location OR no one has ever asked me to post it here.

THAT IS THE REASON WHY if your model is not listed above I suggest you READ and follow the detailed instructions for finding the EEPROM location YOURSELF on my >>>  'Other Models' webpage

If your ThinkPad is NOT an SL300,SL400,SL500,G550 then  YES IT CAN BE UNLOCKED WITH KMX1 or KMX2

If your ThinkPad is a newer model and it is NOT listed above YOU may have to find the EEPROM location YOURSELF by following the instructions in  my >>>  'Other Models' webpage

For older ThinkPad models not listed above, email me [Joe, at my email address below] and I will post photos of EEPROM location for that ThinkPad model.

If you email me PLEASE - put something meaningful in the subject line such as "KMX1 EEPROM location question" AND NOT something like Hi or Help as that to me looks like SPAM and I do receive a lot of SPAM so chances are your email will not be read unless you do put something sensible to do with the subject in the Subject line.

Use the Links above to;

View the EEPROM Location/Type for your ThinkPad. 

Identify your ThinkPad Model.

Download the Hardware Maintenance Manual for your model ThinkPad.

Make your own probes

GND connection

IMPORTANT PLEASE READ THIS FIRST!

The links above lead to pages that contain photos of EEPROM connection points on various TP models.

On those pages you will only find a brief description of where to look for the SDA, SCL connection points.

It is your choice as to how you make the actual connections.

Please read the pages Making probes, Clips Probes etc and Soldering to EEPROMS

It is YOUR CHOICE as to how you decide to make the actual connection.

On some EEPROM photos the GND pin is labelled, I suggest you ignore that GND label and instead use a clip to connect GND.

GND is available at almost any large metal part of the TP, such as the metal arms that hold Memory in place, or the heat sink or almost any metal part inside the TP.

In summary the pages linked to ONLY show the actual connections for SDA and SCL and in some photos GND is labelled although it is much better to connect GND using a clip to a metal part inside the TP, this leaves only 2 leads to connect or HOLD in place.

Note:

Not only do you need to make the connections to the GND, SDA and SCL

You also need to assemble the TP to a point that it can be safely switched on and then the connections to GND, SDA and SCL made WHILE THE TP IS SWITCHED ON and the EEPROM is being read..

The TP MUST be made safe to function AND it must be switched ON when the EEPROM is being read.

Instructions on how to actually unlock your ThinkPad (TP) are in the User's Guides

Safety Precautions to ensure that your KeyMaker Board and ThinkPad are not damaged

In order to avoid damage to your KeyMaker Board as well as the ThinkPad you are using it on, there are certain precautions you MUST observe.

If you ignore these precautions you will join the 3% of customers who bought a KeyMaker board - ignored these precautions and damaged their KeyMaker Board  by being careless - then had to pay to have it replaced - and lost a lot of time in the process.

Your KeyMaker has electrical contacts on both sides, you must ensure that no part of your KeyMaker USB board comes into contact with any conductive surfaces such as bare metal or bare wires.

You should place down a piece of paper and place your KeyMaker USB on top of it in order to avoid any electrical contact which may damage your KeyMaker.

There is no danger of receiving an electrical shock from your KeyMaker USB as the highest voltage anywhere on the board is 5 Volts which is a safe voltage to touch.

If you prefer you can place your KeyMaker USB board inside an Anti-Static  plastic bag during use, the board does not get warm at all, so there is no issue with ventilation.

The same precautions apply to your ThinkPad when you are performing any operation and BEFORE your ThinkPad is switched ON, you must ensure that nothing can short out by coming into contact with other parts, you can use sheets of plastic or plain paper to make sure things remain electrically isolated.

You MUST NOT allow the SDA and SCL leads from any KeyMaker KMX1 or KMX2 to come into contact with ANYTHING other than the correct SDA and SDA EEPROM connections points and ONLY AFTER;

You have traced the wire you are using for your probe right back to the label on the I2C header on the KeyMaker board which reads SDA for YOUR SDA lead and reads SCL for YOUR SCL lead.

You have absolutely confirmed that you have correctly identified the SDA and SCL connection points on your ThinkPad System Board.

3% of customers who purchased a KeyMaker Board have somehow managed to damaged their KeyMaker board.

NOT ONE of those customers can tell me exactly what he or she did to damage it.

I have tried all sorts of seriously ridiculous ways to damage a KeyMaker board and I have NOT BEEN ABLE TO DAMAGE ONE !

I only tried MILDLY STUPID THINGS like connecting a solid 9 Volt source to SDA and SCL - theoretically that should have damaged the I/O pin on that KeyMaker powered from 3.3 Volts, IT DIDN'T.

Your KeyMaker board is a delicate piece of equipment, treat it with respect.

Do NOT experiment or connect to anything if you are not certain you have the correct connection points identified.

There are voltages much higher than 3.3 Volts inside your ThinkPad, in fact up to 20 Volts. 

20 Volts is not a danger to YOU but it is to the KeyMaker KMX1 or KMX2.

Connect SDA and SCL leads ONLY if you have double checked and are CERTAIN you have correctly identified SDA and SCL connection points

The above is VERY IMPORTANT - don't ignore it else you WILL damage your KeyMaker KMX1 or KMX2 board and that is expensive, wastes a lot of time and is not much fun.

Read more on Safety Precautions here

This page is under construction, eventually [it is a fairly large task] it will have all TP models depicted.

If there is a particular TP Model you need, email me and I will put it up here.

If you have better images than these that you would like to share, email me.

 If you have any questions WHICH ARE NOT ALREADY COVERED IN THESE PAGES , email Joe at

TRANSLATION to other languages 

To translate the information on this website to other languages, you may try the following links;

http://www.freetranslation.com/    translates entire web pages, practically unlimited.