This is why i didn't want this app, because alot of people told me it had problems like that. You should have just waited for 2.1

Turn the phone off, leave it for 5 minutes, then turn it on and try again

 

i do in the wrong position to unlock my phone that my screen was locked,please give me some suggesions to unlock my screen.

 

Hello there if you have put in the wrong pattern lock too many times you have to enter your google account email and password. If this doesn't work you can try typing 'null' in as your password as this works in some cases.

If both these fail you will have to reset the phone by running the repair function on Sony Ericsson Update Service available to download from the support part of their website. This will wipe your phone and in the process remove the pattern lock.