PS5 DualSense Controller Triangle Button Stopped Working

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DualSense 컨트롤러 V1

DualShock 시리즈의 후속작인 1세대 Sony PlayStation 5 DualSense 컨트롤러에 대한 수리 안내서, 분해도 및 문제해결 정보입니다. 모델 번호 CFI-ZCT1W와 마더보드 모델 BDM-010으로 식별됩니다.

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Ricardo MVG @xsetor

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게시됨: 2025년 10월 8일

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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 평판: 50.9k 20 18 34 · Answer 1 · 2025-10-08T08:17:19-07:00

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koppie007 @dan0

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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!