Export single SMS from iPhone and import on another iPhone
If both of your iPhones are jailbroken, you can
- Login into your old iPhone via SSH
- Download
/var/mobile/Library/SMS/sms.dbfile from your iPhone - Open the file with
sqlite3command in your computer or any SQLite client. - Get the last message based on timestamps with
SELECTSQL command. - Then login into your new iPhone and open
/var/mobile/Library/SMS/sms.dbfile with sqlite3 command, and do the reverse action. - That means: insert the new message with
INSERTcommand
This might work.