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简介

This guide will demonstrate how to remove the trackball on a BlackBerry 8820. To reassemble the device, please follow the instructions provided in reverse order.

Always exercise caution when handling electronic components.

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1. 步骤 1 Outer Casing
  Remove the battery cover by applying pressure and sliding the silver square on the back of the phone downwards.
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2. 步骤 2
  Remove the battery by prying under it with your finger or a plastic opening tool.
  
  Remove the four small 3/8" long screws using a 1/16" diameter torx screwdriver.
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3. 步骤 3
  Carefully remove the two plastic side bars using a nylon spudger.
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5. 步骤 4
  Carefully pry the back casing off with a nylon spudger.
  
  There are two small clamps on each edge that need to be unhooked before the casing can come off.
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6. 步骤 5
  Pry off the front casing.
  
  Be cautious of sensors and other sensitive areas of the newly exposed electronics.
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1. 步骤 6 Track Ball
  After removing the front from the outer casing, the track ball will come off attached to the casing.
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2. 步骤 7
  Remove the track ball from the front case.
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