My LG G4 recently had the boot loop issue and after buying the Samsung Galaxy A5 2017, I saw that there is a feature that allows you to transfer old files from old phones to my new phone. I tried to connect it with the USB and my A5 automatically disconnects from the LG G4.
@thedarkboy77, I would recommend using Smart Switch with the Wireless feature on it. Follow the instructions on how to transfer the files. I used this program when I transferred my files from my S7 over to the S8. Everything went over without a glitch and nothing was left behind.