Lenovo ideapad 510S-13IKB User Manual page 28

Chapter 4. Troubleshooting
Battery pack problems
Your computer shuts down
before the battery status
indicator shows empty.
-or-
Your computer operates
after the battery status
indicator shows empty.
Other problems
Your computer does not
respond.
The connected external
device does not work.
• Recharge the battery.
• To turn off your computer, press and hold the Power button
for five seconds or more. If the computer still does not
respond, remove the AC power adapter.
• Your computer might lock when it enters sleep mode during
a communication operation. Disable the sleep timer when
you are working on the network.
• Do not connect or disconnect any external device cables other
than USB while the computer power is on. Otherwise, you
might damage your computer.
• When using high power consumption external devices such
as an external USB optical disk drive, use an external device
power adapter. Otherwise, the device may not be recognized,
or the system may shut down as a result.
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