Uncontested Auction - Dropped an honor card after I make a forcing call

[barmar]

As I understand the OP the player has not tried to change her call.

My understanding is that the question is whether she's allowed to change her call.

 

When partner is barred, the opponents will often pass unless they think they have a game. If the bar occurs before you've bid, a common action with a good hand is to try to guess a makable game contract. But if he's barred after you've bid, your original bid will likely become the contract, and the OP is apparently thinking that there should be a way to convert this to the previous situation, so you can try to guess a better contract even though you've already bid.

 

And the simple answer is no.