In addition, there are several common causes that will lead to the SU-41350-3 error as well: According to the survey, the major factor behind the PS4 cannot find update file issue is that your USB storage device is formatted with the wrong file system. The first thing you need to do is to figure out why is the PS4 SU-41350-3 error appears. Update Your PS4 System Software in Safe Mode Update Your PS4 System Software Using the Formatted USB Drive
Make Sure Your USB Drive Is Formatted to FAT32 or exFAT Basic Requirements for Your USB Storage Device.