How to recover deleted contacts in Galaxy S2? What software can I use ?
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If you did not sync or backup your contacts, you can't get them back. Android has no trashcan or recycle bin for deleted files.
Because the Galaxy S2 classification covers different models from different carriers, the forums have been split so not to cause any confusion. Select the forum appropriate to your phone.
Samsung Galaxy S2 (AT&T) - Android Forums
Samsung Galaxy S2 Skyrocket (AT&T) - Android Forums
Samsung Galaxy S2 (T-Mobile) - Android Forums
Samsung Galaxy S2 (Sprint) - Android Forums
Samsung Galaxy S2 (International) - Android Forums
Or any software that I can use to recover it back ?
Recover it back from where? If the contacts were on your phone only and not backed up or sync'ed, then I am afraid they are simply gone.
the only recovery option you have is to restore gmail contacts (up to 30 days old). thats it. Nothing recoverable on the phone itself.
If you have not already try (assuming you were backing them up to google)
menu.settings.accounts and syn.gmail.uncheck contacts
then log in to gmail on a desktop location and go to contacts, see if they are still there. sometimes you can catch it before they are deleted there.
you can also use the restore function mentioned above but do note this restores the data as it was at the point and time you pick. I would make a backup of your contacts as they are today prior to restoring from an earlier point just to be safe.
to do log in to gmail as mentioned above, click contacts, then more
and a bit of overkill...create a back up from your desktop connection, then put it on your sd card and restore it from within the phone (the steps are a little different from phone to phone but it should be open contacts.menu.import)
another neat feature I have noticed on some of the galaxy s2 variants is that you CAN back up ALL your contacts to the sim card. On my previous devices it would not allow this. You might occasionally do that for a just in case go to back up
This is actually slightly incorrect. Effectively a database was erased, so had their not been much disk activity in the data partition after the event, the user should be able to mount the /data partition as a storage device and run a data recovery software program against it. This would turn up a deleted database in the /data/data/ directory which would be recoverable. Having said that, have no idea how to do it.
how can re-store deleted contacts in Samsung galaxy-s phone?
Please see post #2.
You can't "undelete". If your contacts weren't backed up, either to Google or a third-party app, they're gone.
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