save help ps4

Hi guys, due to transferring data to usb on my 5.05 ps4 I lose all my game save ! I was able to get them fom psn cloud save from a friend ps4 on 5.55 but i'm not able to transfert them into my ps4 on 5.05 because it said that the firmware is different, i try to inject them via FTP and it dosent...