Try PC method from this post
https://gbatemp.net/threads/release...enu-for-ps4-firmware-5-05.553359/post-9677444
Its not so complicated as you think , since you are also using your PC to send binLoader 'PS_Phwoar_Installer.bin' to get PS-Phwoar.USB loaded
First Disable Updates from exploit menu , after reenter Int. Browser on ur ps4 , close and delete all windows ,enter the settings in Int.Browser , Clear website Data and delete Cookies .
Second Load Pc Phwoar and it will be automatically cached in your browser