Nokia x3-00 deleted all my contact names !

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Hello,

I tried to copy all names from memory to sim card so that i could replace the mobile into smart phone , i made a copy of the contact , sms , i insert the sim to the new mobile , i didnt find any of my contants name , all of it was vanished , but some sms's still there!

How could i bring it back , it about 400 conact names , its completely disaster .
I hope any one could help....