Help me for S/N No. (Serial No.) of Ace.

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http://forum.xda-developers.com – Hii Friends... My samsung galaxy ace is 1year old. i have to show it to service centrr. But, the problem is I need a serial number..which is printed on backside of phone on a white sticker behind battry case. and i have lost tht stickr..my stickr has been scratchd..and now i am unable to see it.. Even i have lost my bill. Is it possible to get a serial number from phone??? HELP ME GUYS.. (HowTos)