How to transfer a few text messages from one phone to another I had a Samsung Galaxy S3 which I used for some time.  After getting a Galaxy S7, I transferred all my text messages and other stuff to the new phone using Smart Switch.  However, last week I had to use the old phone again, and now I am wondering if there are any easy way to transfer the messages I send/received during that week to my new phone?  Possibly, if there is a way of transferring the messages one at a time (by Bluetooth or something) this would also be helpful, as it is not a large amount messages.

I tried to do it with Smart Switch, hoping it could somehow merge the messages from the two phones, but it would not sync messages.  Maybe because the new phone already had a lot.

Searching the internet I seemed only to find solutions for transferring everything from one phone to a new phone.
SMS backup and restore has 


  Option to select which text conversations to backup or restore


Though it is manual and not by date . This should be fine in your case as you don't have too many



On the next screen you can select the messages manually and create a backup

Thanks to a acejavelin who pointed out that restoration can be done for a specific date range. Acejavelin further adds


  The restore process does a cleanup to remove duplicate messages