Just got my new Samsung S3 yesterday, first thing I did (as all techies would) was to update to the latest firmware, sync your emails/contacts/calendar, download apps and get it started.
Just then, I notice that after I read my emails, the home screen icon still showing unread mails! as do the SMS messages. So I did google a bit to find out what’s wrong. Honestly, nothing really works other than this post that tell you reset to factory default. Since it was new, why not give that a shot. That solves it!
For those not sure how to do a reset, just go to your phone dial and key this in:
Wait patiently, it will reset to factory default.