Yup, install anything you can.
I saw in your first post that you wanna change it to English now... You might not want to do that since installing the 4.2 firmware for any other region WILL brick your console. 4.1 or below should work, but if you ever updated to 4.2u/e/j or beyond you'd get to kiss your console goodbye.
I saw in your first post that you wanna change it to English now... You might not want to do that since installing the 4.2 firmware for any other region WILL brick your console. 4.1 or below should work, but if you ever updated to 4.2u/e/j or beyond you'd get to kiss your console goodbye.