Please
visit the Home
page for new developments
Instructions
on how to actually unlock your ThinkPad (TP) are in the User's
Guides
EEPROM
Location and Type
R50 and R51 EEPROM
you treat it as 24RF08
Locating the R50 or R51connection points
Switch the R50 OFF.
You should have already downloaded the
hardware Maintenance Manual for your ThinkPad model, if you have not
done so use the link below to download it now,
Download
the Hardware Maintenance Manual (HMM) for your TP model
The links above are to the Lenovo site, if it
doesn't work, don't panic, it isn't broken, their site is shut down
daily for maintenance and at those times they display spurious
messages like the page you requested cannot be found, wait a good
while and try again.
The EEPROM is under the keyboard.
NOTE: VCC is NOT connected, the ThinkPad
supplies power to the eeprom later on we will switch on the TP to
analyse the eeprom.
The photo below shows a 24RF08 EEPROM from a DIFFERENT
MODEL ThinkPad with the Pomona clips attached to SCL and SDA pins.
See my page on Options
for Clips and Probes including making your own probes.
I receive many emails asking about the GND
connection, in reality it is very simple, you use some kind of a clip so
that you don't have to hold it in place, you DON'T HAVE 3 HANDS and there
are 3 connections, GND SDA and SCL, so have a clip for GND, then you can
use the 2 hands YOU DO HAVE to hold your SDA and SCL probes in place.
Almost any large piece of metal or the
screws for the external connectors of any ThinkPad are a good GND
connecting point.
Anyway a picture is worth a thousand words
Click
here for pictures of GND Connections
See my page on Options
for Clips and Probes including making your own probes.
This page ONLY describes how to connect
the KeyMaker Interface to the EEPROM.
The instructions on how to Recover or
clear a Supervisor password are in The "User's
Guides" click here
Assembling your TP - AFTER - you have finished.
Follow the Hardware Maintenance Manual [FRU System
Board], very carefully, double check screw type and size for each
individual module. Assemble the TP in the reverse order used to
dismantle it.
Disclaimer
I make no warranty that any of my
information is correct, or safe, or does or does not breach any warranty
clause, or anything else, it is up to you to decide if you will
follow all or any of the instructions to recover the Supervisor Password
from a TP. It is up to you to decide, I am not responsible for the
results or for any consequential or incidental damages whatsoever.
