[ Up ] [ Your TP Model ] [ TP HM Manuals ] [ Other Models ] [ Making probes ] [ GND Connection ] [ Soldering to EEPROM ] [ 390 390E 390X ] [ 600 ] [ 600e ] [ 600x ] [ A20 A21 A22 m/p ] [ A30 A30p A31 A31p ] [ G40 G41 ] [ L412 ] [ L512 ] [ L520 ] [ R30 ] [ R31 ] [ R32 ] [ R40 ] [ R400 ] [ R50 and R51 ] [ R51e ] [ R52 ] [ R60 ] [ R61 R61i ] [ R500 ] [ SL410 ] [ SL510 ] [ T20 T21 T22 T23 ] [ T30 ] [ T40/p T41/p T42/p ] [ T400 ] [ T400s ] [ T410 ] [ T410S ] [ T420 ] [ T43 T43p ] [ T430 ] [ T500 ] [ T510 ] [ T520 ] [ T60 T60p ] [ T61 T61p ] [ W500 ] [ W510 W520 W530 ] [ X1 Carbon ] [ X100e ] [ X130e ] [ X200 ] [ X200T ] [ X201 Tablet ] [ X220 and X230 ] [ X30 ] [ X31 ] [ X300 ] [ X301 ] [ X40 and X41 ] [ X60 X60s ] [ X60Tablet ] [ X61 X61s X61t ] [ Z60 ] [ Z60m ] [ Z61 ] [ Z61m ] [ Z61T ]
visit the Home
page for new developments
on how to actually unlock your ThinkPad (TP) are in the User's
Location and Type
X220 is the same
X220 and X230 EEPROM you
treat it as a 24RF08
Locating the X220 or
X230 connection points
Switch the X220 or X230 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
or X230 Hardware Maintenance Manual (HMM)
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.
Once you have your HMM search the
manual for "Removing and replacing a FRU" then
scroll down to System Board, follow the instructions in the
manual to remove the System Board.
SDA and SCL connection points to the
L08 EEPROM are
shown in the photo below
You will need to switch the X220
or X230 ON in order to read the L08 EEPROM, that means making it safe to
switch on with LCD and keyboard connected outside of the case, use
paper or plastic sheets as an insulator to keep System Board, LCD
and Keyboard from electrically shorting to each other.
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
here for pictures of GND Connections
things from electrically shorting out, later you will need to plug
in the AC adaptor and switch ON the TP, then you will need to hold 2
probes in place to the SCL and SDA points on the system board.
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.
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