How do I get rumble to work on the pocketgo?

[ghost]

I had rumble on gba games (though it was really weak), and now it's gone. I think I may have deleted something by accident, is there something can download to get it to work again?

[xXS4ALLx]

When you say GBA game(s), your meaning just the one correct, which is Drill Dozer?
There is only 2 GBA games that supported rumble, the other is WarioWare - Twisted! which doesn't count since this game has built in motion controls as well as rumble, this game boots and works fine but can't be played because motion control is required.

What firmware are you currently using on your PocketGo? Stock or CFW?