Page 1 of Multi Region Hack for CYBERHOME AD-L 528

Please can someone give me the code to turn my region 2 player into a Multi-Region Player.
Thank-you

To convert this player to Multi-Region
1. Press the Open/Close button on your remote control to open the drive tray
2. Press the Stop button on your remote control
3. Using the buttons on your remote control, press the buttons 1, 9, 9 and 9, one at a time, in order
4. Using the Up and Down buttons on your remote control, highlight the Region Code option
5. Press the Enter button on your remote control
6. Using the Up and Down buttons on your remote control, select the region of your choice, or All for multi-region
7. Press the Enter button on your remote control
8. Press the Open/Close button on your remote control to close the drive tray
9. Press the Power button on your remote control
10. Turn off your player using the power switch on the unit
11. Turn on your player using the power switch on the unit

I have tried this hack but get no Set-up screen after pressing 1,9,9,9. Is there something that I am missing? Is this hack restricted by the Firmware version that I have and if so, is there a way that I can check exaclty what version of firmware I have. Any other advice? Please help.