Help to unlock my phone from security question

[einalemevad]

Please help me how to unlock my phone from security question,.. I really forgot what is the correct answer that needed... My niece 3 years old always play in my xperia x10 mini,.. until I didn't see that she attempt how many time for the pattern,... Now I receive a messages, miscalls and email that I did'nt know who... Please help me what to do,,... I am getting sick of this.
Thank you

 

[Josh-SonyXperia]

Unfortunately you will have to reset the phone to use it again. To do this download the PC Companion from the link below and do the Repair Phone option on it to have your phone working again right away.
Xperia? X10 mini - PC Companion - Downloads - Mobile phones - Support - Sony Ericsson