How do I replace the S Pen nib?

Please note:

• Use the tweezer that is mentioned above only
• Be careful not to pinch your fingers with the tweezers. 
• Do not reuse old nibs. Doing so may cause the S Pen to malfunction.
• Do not press the nib excessively when inserting the nib into the S Pen.
• Do not insert the round end of the nib into the S Pen. Doing so may cause damage to the S Pen or your device.
• Do not bend or apply excessive pressure with the S Pen while using it. Doing so may damage your S Pen.
• Do not hard press the screen with the S Pen. The pen nib may be deformed.                              
• If you use the S Pen at sharp angles on the screen, the device may not recognize the S Pen actions. 
• The Recent and Back can be used with the S Pen.
• It is strongly recommended to use the tweezers that you have received in the box.
• If water enters the S Pen slot, gently shake the device to remove the water from the slot before using it.