I popped my Vali open and carefully pressed down both tubes--it took less than 5 minutes.
Use a small phillips screwdriver and put the screws in a small cup.
Gently remove the chassis cover by pulling it straight forward.
Press down the tubes with a microfiber or other clean cloth.
Gently replace chassis cover by moving it straight forward onto chassis--keep your eye on the power led to make sure it comes back through the hole.