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 Components Replacement and Upgrade 
Please be noticed that the memory, hard disk drive, wireless LAN / Bluetooth module and 
battery pack preinstalled in the product users purchased may be upgradable or replaceable by 
user’s request depending on the models users purchased.     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This notebook is equipped with a high-capacity Li-ion 
battery pack, and the battery pack is replaceable by users. 
 
This notebook is equipped with an optical drive device, and 
this device may be upgradable and replaceable by the 
authorized dealer or service center.