Introduction

This guide provides steps on how to replace the microphone for the BLU Studio 7.0 II.

Locate the seam between the black and silver pieces of the phone.
  • Locate the seam between the black and silver pieces of the phone.

  • Insert a plastic opening tool into the seam and firmly pry the black back piece away from the silver front piece.

  • To create the initial separation for the plastic opening tool, you may need to use either a spudger or metal spudger. If you use a metal spudger, be aware this can damage your phone if you aren't careful.

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Work your way around the edge of phone, firmly prying the pieces apart.
  • Work your way around the edge of phone, firmly prying the pieces apart.

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Once the back has been removed, you can snap the new one into place by pressing firmly around the edges with your fingers. Once the back has been removed, you can snap the new one into place by pressing firmly around the edges with your fingers.
  • Once the back has been removed, you can snap the new one into place by pressing firmly around the edges with your fingers.

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Using the PH00 screw driver, remove the two 3mm screws. These screws may be covered by small, round black stickers. Remove the stickers to continue.
  • Using the PH00 screw driver, remove the two 3mm screws.

  • These screws may be covered by small, round black stickers. Remove the stickers to continue.

  • Remove the metal clip that connects the battery ribbon to the motherboard by lifting up. Precision tweezers work best for this part.

  • Be sure to only grab the metal clip with the tweezers, not the connector underneath.

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Disconnect the battery connector using a plastic opening tool or the flat end of a spudger.
  • Disconnect the battery connector using a plastic opening tool or the flat end of a spudger.

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Remove two 3mm screws from the bottom black panel.
  • Remove two 3mm screws from the bottom black panel.

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Use the flat end of the black spudger to gently lift up the black plastic piece. Rest the plastic piece against the back of the phone.
  • Use the flat end of the black spudger to gently lift up the black plastic piece.

  • Rest the plastic piece against the back of the phone.

  • The black plastic piece is connected to the phone by a circuit ribbon. Be careful not to pull too hard or you may break this ribbon.

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Use the precision tweezers to grip the micro-circuit board. Lift straight up. The micro-circuit board is connected to the silver adhesive strip. You'll have to gently peel this strip back to get the micro-circuit board to move far enough to get to the microphone.
  • Use the precision tweezers to grip the micro-circuit board. Lift straight up.

  • The micro-circuit board is connected to the silver adhesive strip. You'll have to gently peel this strip back to get the micro-circuit board to move far enough to get to the microphone.

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Use the precision tweezers to grip the silicone around microphone and pull it from the plastic housing. Use the precision tweezers to grip the silicone around microphone and pull it from the plastic housing.
  • Use the precision tweezers to grip the silicone around microphone and pull it from the plastic housing.

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The silicone around the microphone comes off easily; grip the red and black wires gently with either your fingers or a precision tweezer and use your other hand to pull off the black silicone piece.
  • The silicone around the microphone comes off easily; grip the red and black wires gently with either your fingers or a precision tweezer and use your other hand to pull off the black silicone piece.

  • Desolder the contacts for the red and black wires to disconnect the microphone.

  • For more information on soldering, view the Soldering Wiki page.

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Conclusion

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

Abby

Member since: 05/14/2016

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Metro State, Team 1-2, Carpenter SU 2016 Member of Metro State, Team 1-2, Carpenter SU 2016

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