Have I broke it?

I have just used a NDS lite to update my AK2i to 1.4.
It worked on ds lite before update but now it wont work on my ds lite or dsi XL.

What have I done wrong? It said update was successful.

 

Did you cycle the card before doing the update?

 

What?

 

Like when you update it.

It'll say take the cart out before you update the firmware on the card...and then push it back in and continue with the firmware update.

 

I have already updated the cart.