Philips Essence 5000 Series User Manual page 11

 Now, insert the screwdriver into the middle slot located on the top
front part of the handle as shown and push the blade in as far as it
will go.
 Now use the screwdriver as a lever to pry the 2 handle sections
apart.
 Pull the 2 handle sections completely apart.
 Insert the screwdriver underneath the electronic circuit board in
multiple places.
 Twist and pry the electronic circuit board loose until it is completely
separated from the handle.
ENGlISH
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