try this, works for some tredex's
Change region:
1. Open the player's tray.
2. On the Remote Control, key in 2, 1, 8, 0, followed by the region you want, or use 9 for region free.
3. The first four digits will appear as asterisks on the screen. Each digit has its own asterisk. Once you reach the fifth digit, whatever that digit is will replace all the asterisks
:Clap: