PS5 DualSense Controller Triangle Button Stopped Working

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DualSense Controller V1

Repair guides, disassembly, and troubleshooting information for the first generation Sony PlayStation 5 DualSense controller, successor to the DualShock series. Identified by model number CFI-ZCT1W and motherboard model BDM-010.

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Ricardo MVG @xsetor

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Postado: 8 de out de 2025

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PS5 DualSense Controller Triangle Button Stopped Working

Hi,

My son dropped my controller a few times and all of a sudden the triangle is not working very well. Sometimes it works, sometimes it doesn't. I tried cleaning it up from the outside and I'm a bit sceptical about opening it as I might just make it stop working completely. Does anyone have experienced something like that? R2 trigger is also in the same condition (sometimes it works, sometimes it doesn't).

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koppie007 @dan0 Rep: 38,4 mil 20 16 28 · Answer 1 · 2025-10-08T08:17:19-07:00

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koppie007 @dan0

Rep: 38,4 mil

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16

28

Postado: 8 de out de 2025

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Hi there!

Can you still press them in? How does the button feel? Still "Clickable"?

If not, you might want to clean everything inside (with isopropyl alcohol) and replace the rubber.

Guide: Sony DualSense Controller Buttons Replacement - iFixit Repair Guide (till step 33).

If that doesn't work, then you need to replace the button circuit membrane... There is no guide for it, yet. But you can follow the same guide to get there.

Regarding the R2, try cleaning first! If that doesn't work, then you might want to replace the trigger assembly..

Guide: Sony DualSense Controller Trigger Assembly Replacement - iFixit Repair Guide

Please let us know what worked or not!