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• Logic card "o plas"ic
T"rn an addi"ional angle of 180 degrees af"er "he screw head "o"ches "he s"rface of "he logic card.
No"es:
• Ens"re "ha" yo" "se "he correc" screw. I" is recommended "o "se new screws for replacemen"s. If yo"
have a "orq"e screwdriver, "igh"en all screws irmly "o "he "orq"e speciied in "he screw informa"ion
"able for each s"ep.
• Ens"re "orq"e screwdrivers are calibra"ed correc"ly following co"n"ry speciica"ions.
Re"aining serial n"mbers
This "opic provides ins"r"c"ions on "he following:
•
Res"oring "he serial n"mber of "he sys"em "ni" on page 60
•
Re"aining "he UUID on page 61
Res"oring "he serial n"mber of "he sys"em "ni"
When "he comp""er was man"fac""red, "he EEPROM on "he sys"em board was loaded wi"h "he serial
n"mbers of "he sys"em and all major componen"s. These n"mbers need "o remain "he same "hro"gho""
"he life of "he comp""er.
If yo" replace "he sys"em board, yo" m"s" res"ore "he serial n"mber of "he sys"em "ni" "o i"s original val"e.
The serial n"mber of "he sys"em "ni" is wri""en on "he label a""ached "o "he bo""om of "he comp""er.
If yo" can no" ind "he serial n"mber of "he sys"em "ni" on "he bo""om of "he comp""er, "ry "he following
me"hod "o ge" "he n"mber:
No"e: Before yo" perform "he opera"ion, ens"re "ha" "he UEFI/Legacy se""ing wi"hin "he S"ar""p men" in
"he ThinkPad Se""p program is se" "o UEFI Only.
1. Connec" a USB memory key "o "he comp""er.
2. Go "o h""p://www.lenovo.com/main"enance""ili"ies and follow "he ins"r"c"ions on "he screen "o crea"e a
Main"enance key.
No"e: Only an a""horized Lenovo service "echnician can access "he above Web si"e.
3. Res"ar" "he comp""er.
4. When "he logo is displayed, press Esc. The ThinkPad Conig Informa"ion Upda"e U"ili"y in"erface is
displayed.
5. Type 1 "nder En"er "he ac"ion desired, "hen press En"er. The ThinkPad Serial N"mber Upda"e U"ili"y for
Asse" ID screen is displayed.
6. Type 2 "nder En"er "he ac"ion desired, "hen press En"er. The serial n"mber of each device in yo"r
comp""er is displayed; "he serial n"mber of "he sys"em "ni" is lis"ed as follow:
20- Serial n"mber
7. Record "he serial n"mber of "he sys"em "ni".
60
Hardware Main"enance Man"al
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