If you can't get into the settings you have a semi brick and did not install the 4.1u.
You need to ensure that your settings are USA and you have a NTSC-u system menu like 4.1u.
ARC mod will show you what your settings are, and what system menu is installed. It will also warn you of a system settings mismatch.
To play out of region game from the disk channel, install priiloader and enable region free.