Since this is a thread about replacing drifting sticks, I thought I'd share my experience.
I got 2 replacement analogue sticks for Vita 2000 from China (dark ribbon cable, bare metal backside).
My old sticks were on neutral at (104, 113), (142, 125), and the replacement sticks at (117, 134), (148, 127). Also, the old left stick had an expanded neutral area, and the right one often drifted even more unless I rapidly spun it first.
One stick was a success (drifted very little), the other one not so much (drifted to the right). However, they aren't broken beyond the drift itself, so that's definitely a plus. In conclusion: buy more than 2, even if they're a bit on the pricier side for replacement sticks!
As for the process itself, it is very easy as long as you dealt with repair in any capacity. In any case, take note of:
- Getting a J00 screwdriver, or a screwdriver kit with a large selection of bits
- Carefully screwing/unscrewing, making sure not to dig a new hole or to strip any screws
- Lifting/lowering locking mechanisms on every ribbon cable holder! I almost got caught with my pants down with this one...
- There's no need to pull out the back touchpad ribbon cable as long as you put something behind the back cover, holding it in place
And luckily, all screws are J00! Every single one of them, at least amongst those you need to open the case and lift the controller daughterboards.