[AC Question]

my sony android mobile was getting hanged, so iam get updated the software of my sony mobile.. but my all contact details were lost..can i regain again..

[Rukbat]

Go to Google Contacts. If you entered your contacts as Google contacts, they're there and safe. Just put the same Google (not GMail - two different places in the phone) account in the new software and it should sync those contacts.

(All contacts should be entered ad Google contacts - no other type of contact syncs. If you still have SOME access to the phone, export all your contacts and save the file. You can import it to the site.)