Help Getting an S7, but a have a question about my S5

[excav8ter]

Hi everyone. So i am hoping to grab an S7 today, but i have a question about "wiping" my old phone before i give it to my daughter. When you do a factory data reset, does it TOTALLY wipe the phone? Are there files and pictures that remain on the device, even though they are not "visible"?

Thanks

 

[KOLIO]

I recommend using KIES 3 or Smart Switch, to where you can re-flash the entire phone.
That should do the trick.

 

[svim]

Are there files and pictures that remain on the device, even though they are not "visible"?

Yes, chances are some if not most of your data is still residing on the storage media. Don't skip reading through Snakeyeskm's link!