Reinitializare de sistem este altceva decat Rebuild Database. Dar cel mai bine sa faca cum ai zis tu. Dar trebuie sa fie logat pentru a putea urca salvarile in cloud...

https://support.us.playstation.com/a...Safe-Mode-PS4/
Rebuild Database: Scans the drive and creates a new database of all content. This operation may take a long time depending on the type and number of data items.
Initialize PS4: Important: All data and settings will be lost by performing this step. Deletes all user data and restores the PS4 as if it just came out of the box. This option is the same as [Initialize PS4 ] in the (Settings) menu. System software (firmware) is not deleted.
Initialize PS4 (Reinstall System Software): Important: Deletes all information on the HDD, including the System Software. Click here to download the reinstallation version of PS4 system software.