Don’t download or install the update using data other than the official update file provided online by Sony Interactive Entertainment. Don’t download or install updates by methods other than those described in the documentation on PS Portal or on this website. If you download or install the update data from a different source, by a different method, or on a device that has been altered or modified in any way, the device might not operate properly and might not be able to install the official update data. Any of these actions can void the system warranty and affect your ability to obtain warranty services and repair services from Sony Interactive Entertainment.
Don’t install system software when the device does not have sufficient battery charge.
Don’t turn off your PS Portal during the installation. Interrupting the installation can cause your PS Portal to be damaged.
You might not be able to use some functions of PS Portal without first updating the system software on your device.