There is some truth to
@bebeboy62 findings. I managed to partially implement this workaround. I couldn't go online on the PSN store, but I was able to copy games and saves from USB storage, which also requires to be logged in to your account for some reason. Here is what I did:
- Create a hotspot on your phone and connect PS5 to that network. I didn't use PDANet, just the built-in Android functionality. I believe iOS has the same thing.
- Disable Mobile Data on the phone such that there is no internet connection
- On PS5 go into Settings - Account - Sign In -> See the "DNS error" pop up
- Restart PS5, only restart works, sleep mode doesn't do anything
- After restart you should be able to use USB storage
With this method you can update the games on your JB PS4 and copy over to PS5. Same goes for save games. The major caveat is that you
need an account that has been online before. This won't work on a local account that hasn't been linked to a PSN Account.
@bebeboy62 it would be great to show how to get the rest of the functionality you have achieved.
As for game updates, Sony is pushing updates that require FW 4.50+. If the latest game update is compatible with 4.03 you should be able to install it. I couldn't test this because I don't have a game like that.