Launch the FBI
Navigate to the "Titles" menu
Scroll past the green titles until you see the red ones begin. These are system titles installed to the internal flash memory of your device, not to the SD card. Many, but not all, of these red system titles will have a "Product Code" on the top screen.
Any red system title that either does not have a Product Code, or has the Product Code "CTR-P-CTAP" should be ignored for the following instructions!
Look at the following list and determine the letter that corresponds to your PREVIOUS device region. This should be the one from
BEFORE the region change.
- "E" : USA
- "J" : JPN
- "P" : EUR
Use the FBI title menu to delete any title whose product code
ends in the letter corresponding to your previous device region. This will remove leftover system programs designed for your previous region which will cause issues if left installed.
Remember that any red system title that either does not have a Product Code, or has the Product Code "CTR-P-CTAP" (even though it ends in "P") should be ignored!