Hi friends if you deleted an important sms accidentally dont worry,here is an trick for you to restore that deleted sms,this can be done only for symbian mobile phones or phones with file managers.
Any system explorer or file explorer program (eg. LCG X-Plore)
Open Fexplorer in your mobile
Select drive C: or D: (on which sms is stored)
depending on the memory in which the Sms messages have been saved.
For example u selected c: , Then open “system” folder.
Then in “system” folder open “mail” folder.
Then in this folder u will see different folders (eg 0010001_s) and certain files (eg 00100000). These files are the actual messages. Browse through every folder and open all files till u get the sms u are looking for.
For opening the files don’t choose options>file>open as it will show format not supported rather choose options>file>hex/text viewer.By selecting the “Hex/ text viewer” u ll be able to open and read the deleted SMS message.
thus you can get your accidentally deleted sms messages back.