there is a minor bug in the previous release that breaks the exploit on devices that are not connected over ethernet; I don't have a ps4 on 4.55 here so it's 100% untested: crack.bargains/455_v2
Playstation 4 4.55 owners, The Holy Grail payload which allows to install packages and run fself (ultimately allowing homebrews) is here and now public, enjoy!
socat -v u file:Path-to-your-payload-bin tcp:IP-address-of-your-PS4:9020 or
nc IP-address-of-your-PS4 -P 9020 < path-to-your-payload.bin
flatz Debug/FSELF code needed to instal and launch fpkg (dumped game)......
you can't play game yet, still private payload named ps4_455_holygrail.bin (67.7 KB)
and the md5 is 38F5E677A543EF93FB9A75096F983F89
https://twitter.com/Mathieulh/status/968583649737216002
ps4_455_holygrail.bin:
https://mega.nz/#!CbJwlLAY!bODx6pIdF3UXl0vm2EmYWWJQHbex6K-_Wlz8HPn0c_c
With this you can launch debug pkg (FSELF patch).
Next Question. Is there any way to unlock the Browser? While Psn Update?