Having issues installing PKG files

Easy on the ps3, seems to be an issue on the ps4...

I tried EXFAT and FAT32. PKG in root of HDD. Plugged in to left and right front USB ports and I keep getting "no package found message."

Each time, I launch the exploit by going to the specter. via web browser. Then debug and package installer.

Can anyone help with this please?

FW is 4.05, first time on a ps4 trying to install PKG files.