If not, be sure to follow the steps carefully. If everything goes as planned, you will receive a message informing you of the availability of an update.Go to Settings –> System Software Update.Turn on the device and insert the USB memory drive.In this folder, create another folder named UPDATE, rename the firmware file to PS4UPDATE.PUP, and then copy it to the UPDATE folder. Prepare a USB drive with at least 4 gigabytes of memory, format it in FAT32 and create a folder named PS4.Disable Internet on the Rest mode as well.Disable automatic update from the Internet by going to Settings –> System –>Automatic Downloads and Uploads, then uncheck both System Software Update Files and Install Automatically.Make sure that the file you have is for the 5.05 version, you can verify with the MD5 checksum (f86d4f9d2c049547bd61f942151ffb55) you can use HashMyFiles to do so. First, you need to install the firmware, you can do that by clicking the download button on this page.The steps for the upgrade are as follows:
Do not turn off the device during the upgrade, as this may cause system problems.Do not perform the upgrade directly after a sudden power failure first, turn on the device and make sure it is working normally.Any PlayStation 4 with firmware below 5.05 can be upgraded to 5.05 to take advantage of the jailbreak. SpecterDev has jailbroken this version of the firmware. Download Sony PlayStation 4 Firmware 5.05.
