Introduction

How to disassemble the phone to remove and replace the circuit board that controls button input.

Place the phone with the screen facedown on a flat surface.
  • Place the phone with the screen facedown on a flat surface.

Pinch the latch upwards towards the top of the phone. Lift the back cover of the phone.
  • Pinch the latch upwards towards the top of the phone.

  • Lift the back cover of the phone.

  • There are tabs on the bottom end of the battery cover that the cover pivots about.

Remove the battery by pressing on the edge of the battery from the top of the phone towards the bottom and lifting up. Remove the battery by pressing on the edge of the battery from the top of the phone towards the bottom and lifting up.
  • Remove the battery by pressing on the edge of the battery from the top of the phone towards the bottom and lifting up.

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Remove the four 8.5 mm screws from under the battery cover with a T4 Torx screwdriver.
  • Remove the four 8.5 mm screws from under the battery cover with a T4 Torx screwdriver.

  • Remove the two 8.5 mm screws from the top of the phone with a T4 Torx screwdriver.

Using the plastic pry tool remove the rear housing from the rest of the phone.  You may have to pry around all edges of the phone, not just the edge shown. When you remove the rear housing, the rubber cover for the headphone jack/charge port may fall out. If not, remove it.
  • Using the plastic pry tool remove the rear housing from the rest of the phone. You may have to pry around all edges of the phone, not just the edge shown.

  • When you remove the rear housing, the rubber cover for the headphone jack/charge port may fall out. If not, remove it.

Remove the small black circular rubber spacer. Remove the white rubber spacer.
  • Remove the small black circular rubber spacer.

  • Remove the white rubber spacer.

  • These pieces are small and easy to lose, especially the black one. Set them somewhere safe!

Gently remove the motherboard assembly from the front housing. Now, the front housing is free to be replaced, as well as the cosmetic keypad.
  • Gently remove the motherboard assembly from the front housing.

  • Now, the front housing is free to be replaced, as well as the cosmetic keypad.

Remove the 2 clips from the sides of the phone, just below the screen with the pry tool. Remove the 2 clips from the sides of the phone, just below the screen with the pry tool.
  • Remove the 2 clips from the sides of the phone, just below the screen with the pry tool.

The circuit board for the buttons is now free to be removed and replaced. The circuit board for the buttons is now free to be removed and replaced.
  • The circuit board for the buttons is now free to be removed and replaced.

Conclusion

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

Jason

Member since: 10/23/2014

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Michigan Tech, Team 1-6, Lauer Fall 2014 Member of Michigan Tech, Team 1-6, Lauer Fall 2014

MTU-LAUER-F14S1G6

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