2. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface
is displayed.
3. Type 1 under
Enter the action desired
, then press Enter. The ThinkPad Serial Number Update Utility for
Asset ID screen is displayed.
4. Type 1 under
Enter the action desired
, then press Enter. Then follow the instructions on the screen
to restore the serial number of the system unit.
Retaining the UUID
The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at
production and stored in the EEPROM of your system board.
The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two
computers in the world have the same number.
When you replace the system board, perform the following steps to create a new UUID for the system
board if the system board does not have a UUID:
Note:
Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in
the ThinkPad Setup program is set to UEFI Only.
1.
Connect
a
USB
memory
key
to
the
computer.
Note:
Only
an
authorized
Lenovo
service
technician
can
access
the
above
Web
site.
2.
Restart
the
computer.
3.
When
the
logo
screen
is
displayed,
press
Esc.
The
ThinkPad
Config
Information
Update
Utility
interface
is
displayed.
4.
Type
2
under
Enter
the
action
desired
,
then
press
Enter.
The
Auto
UUID
generation
utility
interface
is
displayed.
5.
Type
y
under
Change
UUID.
OK?
[Y/N]
,
then
press
Enter.
A
new
UUID
is
created
and
written.
If
a
valid
UUID
already
exists,
it
is
not
overwritten.A
Chapter 8
.
FRU replacement notices
57