Somehow I ended up with a bunch of faulty Dualsense controllers and then a few mates wanted theirs fixed as well, so I ordered up a bunch of them to do them all at once.

Removing and reinstalling

Tearing down the controllers was pretty easy, although I did realise that there is 2 different versions of dual sense controllers already. It is always easier to remove the old sticks with new solder, then a desoldering gun, then hot air out the last of it and they just drop out. If you have good hot air, you could probably do it all in once step.

I got the replacement hall effect sticks from AliExpress, https://www.aliexpress.com/item/1005007688806322.html?spm=a2g0o.order_list.order_list_main.186.785e1802SoJOqZ

The only thing you have to do after you replace them is recalibrate the sticks afterwards. I used https://dualshock-tools.github.io/