It says download the latest version of PS4 update which is 4.71 and put on to a memory stick and upload it via that way which wont work either, we have also tried to plug it in with a LAN cable and update but it finishes update but then goes back to the start with the message, 'connect USB storage device that contains an update file for version 4.71 or later'. We have put the PS4 into safe mode and tried all updates as well but still nothing. (We have also formatted the USB stick to the right format) Any help would be great.
The error code we keep getting are CE-30774-1
Thank you