PS4 Controller Thumbstick rubber peels off and R1 button gets stuck - YouTube
Sony DualSense Controller L1 and R1 Button Replacement - iFixit Repair Guide
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How to Fix PS4 Controller Sticky R1/L1 - Machinima - Bratboy90 - Easy Repair Fast - YouTube
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Video] How To: Fix Sticky R1/L1 Buttons on DualShock 4 : r/PS4
SOLVED: Why is my r2 button not working - DualShock 4 - iFixit