Akai DV-P4000 region-free hack
Also works on: DV-P4500
1. Turn the player off (OFF-Mode)
2. Press Dimmer and Skip-Back simultaneously
3. Hold them and press POWER ON
4. Four lines are displayed
5. Enter '1 9 9 9'
6. 'A-0000 D-04' is displayed
7. Enter:
'00' for RC 0 (Display: A-0000 D-00) (region free),
'01' fo RC 1 (Display: A-0000 D-01),
'02' for RC 2 (Display: A-0000 D-02)
8. Press ENTER
9. Turn the player of ('Power ON/OFF')
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