i want to revert my phone to 2.3.340 and im on liberty 0.9, can anyone help me.
You want stock rooted or unrooted?
Follow the instructions in this thread:
From Liberty 2.0.1, Stock, Apex, CM7, etc. (ANY ROM) to Liberty GB
Except don't install the LGB 0.x file at the end.
Follow the instructions in the same thread, except at step 4 in the bottom section, don't skip the activation, and don't follow any instructions from there on.