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.
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Place the edge of an iFixit opening tool under the earpad cushion.
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Slide it alongside the edge of the cushion until it detaches from the rest of the headphones.
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Use a Phillips #000 screwdriver to remove the eight screws along the outer inside edge.
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There should be a piece of grey foam you can simply remove to uncover the centre 4 screws.
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Flip the headphones to the other side and slow lift up the back plastic cover piece.
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Gently remove the touch sensor's ribbon cable by pulling it out evenly from the main board.
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Use a Phillips #000 screwdriver to remove the two black 1.6mm Phillips screws holding the power board down.
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Carefully lift the power board from the unit.
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Plug in the soldering iron and wait 1-3 minutes for it to heat up.
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Place the flat side of the soldering iron on the 2 globs of metal for 2-3 seconds as shown.
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While the globs are still hot, use your tweezers to carefully detach the black and red wires from the power board.
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To reassemble your device, follow these instructions in reverse order.
