Lenovo Laptop manual Troubleshooting, Do not change the factory hardware without Authorization

Lenovo Portable Computer User Guide

4.1.6 Do not change the factory hardware without

authorization

Do not change the computer’s factory hardware, including removing original hardware or adding new hardware, without authorization from Lenovo licensed agencies.

Lenovo has no warranty on the usability or reliability of any devices or software that are not provided by Lenovo or its affiliates.

4.2Troubleshooting

4.2.1 The computer does nothing when you turn it on.

Do as follows:

•See if the AC adapter and its power cord are well connected to the computer and power outlet.

•Check the battery’s power status (some battery has a power self-checking button). See if the battery interface is defiled or if the power cord plug is defiled.

•Use the battery and AC power to power the computer respectively. Turn the computer on to see if the power indicator is on.

•If you the above-mentioned methods do not work, contact Lenovo licensed service agencies.

4.2.2You can turn on the computer but can not start the

system.

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