Question: how to transfer data from samsung to vivo v15 pro?
Answer: Run Syncios Manager and connect your phones to computer. (Oops! Detection problem! ... 
Choose the specific items of each options you'd like to transfer in your Samsung phone. Click 'Export' or 'Backup' to transfer to pc.
Click 'Import' or 'Add' to import the certain items you've transferred before to your Vivo V5.