Difficulty

Very difficult

Steps

10

Time Required

                          1 hour

Sections

2

  • Case Replacement
  • 4 steps
  • Battery
  • 6 steps

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What you need

Step 1

              Case Replacement
  • Pull the head from toothbrush.

Pull the head from toothbrush.

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Step 2

  • Use a nylon spudger to pry the chrome cap at the bottom off.

Use a nylon spudger to pry the chrome cap at the bottom off.

Step 3

  • Use a nylon spudger to release the black tabs on either side of internals.

Use a nylon spudger to release the black tabs on either side of internals.

Step 4

  • Put the metal head on a solid surface with handle perpendicular to the surface. Firmly, yet gently, push down until the internals start to slide out.

Put the metal head on a solid surface with handle perpendicular to the surface. Firmly, yet gently, push down until the internals start to slide out.

Step 5

              Battery
  • Remove rubber covers from the top of the motherboard and the back of the battery.

Remove rubber covers from the top of the motherboard and the back of the battery.

Step 6

  • Using a soldering iron, remove the solder from the three marked spots.
  • The pins are labeled “F1”, “R6”, “JP1”

Using a soldering iron, remove the solder from the three marked spots.

The pins are labeled “F1”, “R6”, “JP1”

Step 7

  • After de-soldering, the battery should be loose. If this is not the case, spend more time removing the solder.
  • When the battery comes loose, gently wiggle it out and away from the device.

After de-soldering, the battery should be loose. If this is not the case, spend more time removing the solder.

When the battery comes loose, gently wiggle it out and away from the device.

Step 8

  • Carefully reinsert the new battery into the same spot as the old one. Gently press until it is firmly pressed against the toothbrush.

Carefully reinsert the new battery into the same spot as the old one. Gently press until it is firmly pressed against the toothbrush.

Step 9

  • Apply a small amount of solder to the three points shown to attach the battery.
  • The pins are labeled “F1”, “R6”, “JP1”

Apply a small amount of solder to the three points shown to attach the battery.

Step 10

  • Replace the rubber covers on the motherboard and battery.
  • Reverse the case replacement guide to finish putting the toothbrush back together.

Replace the rubber covers on the motherboard and battery.

Reverse the case replacement guide to finish putting the toothbrush back together.

To reassemble your device, follow these instructions in reverse order.

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Author

                                      with 3 other contributors 


                    Zachary Bertrand

Member since: 11/20/2017

634 Reputation

                                      3 Guides authored                  



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Team

                       IUPUI, Team S22-G1, Bayer Fall 2017                        

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                    IUPUI-BAYER-F17S22G1                     


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                                            9 Guides authored

Janson McCreery - Apr 6, 2022

Reply

I recommend to soak the bottom of the brush in a cup of warm water to make it easier to remove the bottom cap. The plastic is very easy to crack when cold.

Maybe Dave - Apr 23, 2022

Reply

This is a decent guide. Thank you to the author! Problem is that they don’t make these devices user serviceable, so we basically have to pry and force the cap off. ARGH! RIGHT TO REPAIR NOW!!