Developer SKFU realease the first tool abaut PS4. With this tool, you can see PS4 firmware details, unpack and pack PS4 (SLB2 Container) firmware. This tool doesn't unpack and pack (inner) PUP at the moment. For more details, see the SKFU notes bleow.
SKFU wrote:
Features:
Show PS4 firmware details
Unpack PS4 (SLB2 container) firmware
Pack PS4 (SLB2 container) firmware
Todo:
Unpack (inner) PUP
Pack (inner) PUP
~~~Keep in mind that SLB2 files are the complete firmware files. SLB2 files contain PUP files.
SONY just used the file extension ".PUP" for the actual SLB2 firmware files to make it less confusing for common users.
Download PS4FwTool
SKFU wrote:
Features:
Show PS4 firmware details
Unpack PS4 (SLB2 container) firmware
Pack PS4 (SLB2 container) firmware
Todo:
Unpack (inner) PUP
Pack (inner) PUP
~~~Keep in mind that SLB2 files are the complete firmware files. SLB2 files contain PUP files.
SONY just used the file extension ".PUP" for the actual SLB2 firmware files to make it less confusing for common users.
Download PS4FwTool