This was good knowledge for me, thanks man.
All VPKs that I try to install from Vitashell over USB mode has the same error. Found on the internet more users with the same problem, maybe USB is not the best solution.
https://gbatemp.net/threads/cant-install-vpk-files-error-0xffffffff.517486/
will check out your usbdevice tool
This is what I try to install and the only reason why I had buy the PSTV ->
fsw-vita - Port of Shadow Warrior Classic - jfsw-vita v.1.2 Author: Rinnegatamante
https://vitadb.rinnegatamante.it/#/info/705
All VPKs that I try to install from Vitashell over USB mode has the same error. Found on the internet more users with the same problem, maybe USB is not the best solution.
https://gbatemp.net/threads/cant-install-vpk-files-error-0xffffffff.517486/
will check out your usbdevice tool
This is what I try to install and the only reason why I had buy the PSTV ->
fsw-vita - Port of Shadow Warrior Classic - jfsw-vita v.1.2 Author: Rinnegatamante
https://vitadb.rinnegatamante.it/#/info/705