Update data of system software is partially corrupted
The System Software Update may be partially corrupted due to network instability, please try the following:
Step 1: Restart your PS4 system and download the System Update again by navigating to [Settings] > [System Update] > [Update via Internet].
Step 2: If this doesn't work you can also update you console via USB. For information on how to do this, please click here.
If you remain unable to update your system, it may be in need of service. Please contact PlayStation Support for further assistance.