They have Y118 joysticks.... this will also not last long.
Joypads rather will. Thats why im trying to put in the joypad at the place of the joystick.

link to Y118:

Y118 Int joystick button for SE K700i k750i k800i k900i - eBay (item 280200824340 end time Feb-20-08 18:24:36 PST)