You can use this other Phillips hack code if you like, but it does lock your player after 25 times.
1. Check there is no disc in the player, so the display reads `NO DISC`
2. Press play on your DVD`s remote, followed by 159
3. The display should have dashes accross it, like this `------ ------`
4. On your DVD remote, type in 008000000000
5. The screen should flash blue, the player should turn off, then on again.
6. It should now be Region 1
To change back, follow the above instruction, but type in 002000000000 instead. OK?