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Introduction

If you experience your Sony WH-1000XM5 headphones failing to turn on, a blinking charging port light with no power, or limited charging capacity of only 10%, use this guide to replace the power board.

The power board manages the battery, including charging, protecting against overcharging, and incorporating a temperature sensor.

Step 6 requires you to desolder 2 wires connected to the power board. Please wear safety glasses and take caution when handling a hot soldering iron. If you are new to soldering, you can follow the How To Solder and Desolder Connections guide for more in-depth instructions.

Before beginning, make sure to power off your headphones and disconnect from any external power source.

What you need

Step 1 Earpads

Sony WH-1000XM5 Power Board Replacement, Earpads: step 1, image 1 of 3

Sony WH-1000XM5 Power Board Replacement, Earpads: step 1, image 2 of 3

Sony WH-1000XM5 Power Board Replacement, Earpads: step 1, image 3 of 3

Tool used on this step:

iFixit Opening Tool

$1.99

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Place the edge of an iFixit opening tool under the earpad cushion.
Slide it alongside the edge of the cushion until it detaches from the rest of the headphones.

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Step 2 Battery

Sony WH-1000XM5 Power Board Replacement, Battery: step 2, image 1 of 2

Sony WH-1000XM5 Power Board Replacement, Battery: step 2, image 2 of 2

Tool used on this step:

Phillips #000 Screwdriver

$5.49

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Use a Phillips #000 screwdriver to remove the eight screws along the outer inside edge.
There is a piece of grey foam you can simply remove to uncover the centre 4 screws.
Flip the headphones to the other side and slowly lift up the back plastic cover piece.
Gently disconnect the touch sensor ribbon cable by pulling it out evenly from the main board.

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Step 3

Sony WH-1000XM5 Power Board Replacement: step 3, image 3 of 3

Peel off the tape covering the battery connector.
Pull out the battery and disconnect the battery cable from the motherboard.

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Step 4 Power Board

Sony WH-1000XM5 Power Board Replacement, Power Board: step 4, image 1 of 1

Unplug the main wire and all ribbons from the power board.

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Step 5

Sony WH-1000XM5 Power Board Replacement: step 5, image 3 of 3

Use a Phillips #000 screwdriver to remove the two black 1.6mm Phillips screws holding the power board down.
Carefully lift the power board from the unit.

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Step 6

Before you begin soldering, note the following safety precautions:
Always unplug, turn off, and remove power sources before soldering.
Do not touch the metal part of the soldering iron! The soldering iron can heat up to over 310°C (600°F).
Be extremely careful when you are soldering/desoldering lithium-polymer battery wires! You can easily short the battery with solder or your tools, resulting in battery damage and a fire hazard.
Plug in the soldering iron and wait 1-3 minutes for it to heat up.
Place the flat side of the soldering iron on the 2 globs of metal for 2-3 seconds as shown.
While the globs are still hot, use your tweezers to carefully detach the black and red wires from the power board.