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PS4 Dualshock 4 Controller Fix for the R2 and L2 Buttons - YouTube
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How to fix any broken triggers issues including L1, L2, R1 or R2 buttons not responding properly - YouTube
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eXtremeRate Clear Red 2 Pairs L2 R2 Buttons Extention Trigger for Playstation 4 Controller, Game Improvement Adjusters Extenders for ps4 Controller JDM-030 : Amazon.in: Video Games
Amazon.com: R2 R1 L2 L1 Replacement Trigger Buttons with Springs for PS5 BDM-010 Controller Repair Accessories : Video Games
PS4 Dual Shock Trigger L2 issues, its not broken but it actives on its own - PS4 Slim - TronicsFix
L2 button fell out of place. Can I fix it or do I need a new controller? : r/playstation
How to Repair the R2/L2 Button on PS4 Controller - YouTube