Question: how to transfer data from galaxy s4 to s7?
Answer: You got a transfer USB adapter in the box of your Note 7. Use your USB regular cable from the S4. The USB adapter from the Note 7 box is attached to the Note 7, USB cable from Note 7 to. S4....on the S4 you have to bring down notification bar ahs change the USB connection to either MTP, or File Tranfer.