Sony Xperia Z1s Motherboard Replacement

Introduction

If your Sony Xperia Z1s (model C6916) does not turn on, your motherboard might require replacement.

The motherboard is the most important part of the phone and is required for proper operation. If your device is malfunctioning check the troubleshooting page of the device to help determine if the motherboard is the issue and needs replacement.

Before beginning this guide, turn off your phone completely and remove it from any external power source.

What you need

Step 1 Battery

Sony Xperia Z1s Motherboard Replacement, Battery: step 1, image 1 of 1

Insert the opening pick in the crease between the rear cover and the body of the phone.
Pry along the edge to lift and remove the back cover.

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Step 2

Using the T4 Torx screwdriver, remove five 5 mm screws from the panel above the battery.
Remove the panel by grabbing its bottom edge and lifting upwards.

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Step 3

Use the opening pick to pry off the battery flex cable.

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Step 4

Using the T4 Torx screwdriver, remove two 5 mm screws from the bottom corners of the battery.

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Step 5

Firmly press the suction cup onto the battery.
Pull the battery out using the suction handle.

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Step 6 Motherboard

Sony Xperia Z1s Motherboard Replacement, Motherboard: step 6, image 1 of 1

Use the opening pick to pry off the camera flex cable.
Continue to lift the flex cable upward until the camera pops out.

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Step 7

Use the opening pick to pry off the three flex cables on the bottom of the motherboard.
Do the same for the one flex cable at the top of the motherboard.

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Step 8

Use the opening pick to pry off the black plastic cover above the top of the motherboard.

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Step 9

Tool used on this step:

Tweezers

$4.99

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Use a pair of tweezers to lift up the motherboard.
If you are having trouble removing the motherboard, try lifting up the left edge first and sliding the rest of the motherboard out.