Matsunichi M97 9 inch Speaker Replacement

Introduction

The Matsunichi M97’s speakers are behind a thin piece of metal, and after a drop or after extended use, the speakers may begin to sound tinny or may discontinue to make sound entirely. With this, disassembly of the device may be necessary to diagnose or fix any issues within the speakers themselves. For more information on soldering, please visit the How to Solder and Desolder Connections guide.

What you need

Step 1 Battery

Matsunichi M97 9 inch Speaker Replacement, Battery: step 1, image 1 of 1

Open the micro SD cover located on the back of the device.

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Step 2

Using the Phillips #00 screwdriver, remove the two 4mm screws next to the micro SD port.

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Step 3

Matsunichi M97 9 inch Speaker Replacement: step 3, image 3 of 3

Use the iFixit opening tool to pry off the back cover of the device.
The volume buttons and the lock switch will come loose when the back comes off.

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Step 4

Tool used on this step:

Tweezers

$4.99

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Use a pair of tweezers to disconnect the battery from the motherboard.

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Step 5

Carefully unstick the battery from the frame using the spudger.
Do not bend or puncture the battery during removal.

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Step 6 Motherboard

Matsunichi M97 9 inch Speaker Replacement, Motherboard: step 6, image 1 of 2

Matsunichi M97 9 inch Speaker Replacement, Motherboard: step 6, image 2 of 2

Remove the six 2mm screws that hold the motherboard onto the case using the Phillips #00 screwdriver.
Use the same screwdriver to remove the single 4mm screw.

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Step 7

Gently pull the display ribbon cable to unplug it from the motherboard.

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Step 8

Use a spudger or an iFixit opening tool to lift the locking mechanism holding the camera ribbon cable.

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Step 9

Lift up on the wifi antenna cable to unsnap it from the motherboard.
Then unhook the cable from the holding bracket.

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Step 10

Use the spudger or iFixit opening tool to lift up on the locking mechanism for the digitizer ribbon cable.
Pull the cable from its connection.

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Step 11

Use the Phillips #00 screwdriver to remove the four 4mm screws that hold the speakers in place.

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Step 12

Pull the vibration motor out of its housing.

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Step 13

Lift the motherboard off the frame.

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Step 14 Speaker

Matsunichi M97 9 inch Speaker Replacement, Speaker: step 14, image 1 of 1

Unsolder speakers from motherboard, removing both wires separately and one at a time.
Not a lot of solder is present - not a lot is necessary; therefore, using too much or not working quickly can result in permanent damage to the device.
For more information on soldering, please read the How to Solder and Desolder Connections guide.