Table of Contents
Advertisement
Before servicing the computer
Carefully read this topic before servicing the computer.
Removing external devices
Before you start servicing, ensure that you remove all external devices installed by the customer, such as
MicroSD card, dock, and external display.
Disabling the built-in battery
Before replacing any FRU/CRU, ensure that you disable Fast Startup first and then disable the built-in
battery.
To disable Fast Startup, do the following:
1. From the desktop, type power option in the search box on the taskbar, and select Power Options.
2. Click Choose what the power buttons do on the left pane.
3. Click Change settings that are currently unavailable at the top.
4. If prompted by User Account Control (UAC), click Yes.
5. Clear the Turn on fast startup check box, and then click Save changes.
To disable the built-in battery, do the following:
1. Turn off your computer and disconnect the ac power adapter and all cables from the computer.
2. Turn on your computer. When the logo screen is displayed, immediately press F1 to enter ThinkPad
Setup.
3. Select Config ➙ Power. The Power submenu is displayed.
4. Select Disable built-in battery and press Enter.
5. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off
automatically. Wait three to five minutes to let the computer cool.
Removing the micro SIM card
If the computer has a micro SIM card installed, remove the micro SIM card before you start the servicing.
After you finish the servicing, ensure that you install the micro SIM card (if available) back into the computer.
Removing ThinkPad Pen Pro
If the computer has a ThinkPad Pen Pro installed, remove the pen before you start servicing.
64
Hardware Maintenance Manual
3
1
2
4
Advertisement
Table of Contents
