I failed to re-solder these 3 pins:
https://imgur.com/a/5cfsi8LIt's the pin for the tactile switch on the left analogue stick. Somehow I must have destroyed the solder pads for the pins. I have very little experience soldering and without a hot air station, removing the analogue stick was really hard. It seems like they were soldered on both sides of the board. Or maybe the solder melted to the other side. I don't know.
So I was thinking maybe I could bridge them to somewhere. Anybody kind enough to point me in the right direction? I have looked at the board. The pins go somewhere on the top section but somewhere else on the bottom section. I'm kind of confused.
This controller actually has a drift issue. And if I press the L2 button, it will immediately move upward. I swapped the joystick and everything works fine except for the L3 button, which doesn't work because it was not soldered yet.
And my board is JDM040.