Turn the spring in order to let it to be the most longer type.
 
Press down the spring , positioning it to the NB's air exits..
 
Then, lossen the spring in order to inserting it inot the air exits.
 
Fastening the NB-FA with the tightness knob.
 
Plug the USD Connector of the NB-FA into the USB port of the NB.
 
Finished installation.
   
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