R2 not working after opening up the controller

Opened up the controller to see if I could fix my L2 button which kept activating on its own. Nothing was wrong with the pads on the L2 and it was pretty clean, put it back together and the L2 is seemingly fine for now but the R2 doesn't work period. The spring is in its place, the rubber pads I switched them for the L2's and that didn't make a difference. Hit the reset button under the controller and that didn't do anything either. What happened?

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Double check that the pads are sitting on the membrane correctly. Failing that depending how far apart you took the controller could have caused a fault with the membrane itself.

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