My Samsung Galaxy 551 has started receiving the same SMS repeatedly, for days on end. I have only had it for a couple of months and it's been fine up till a couple of weeks ago. The senders are on different networks (as far as i know), and I have tried deleting the entire message thread with no result. The same SMS just keeps coming. I am on a Virgin pay monthly, btw. Have wondered if rooting the phone would solve this, or has anyone else found a solution? many thanks!