Page 1 of Can anyone confirm the following Akai region hacks work?

http://dvd.reviewer.co.uk/info/multiregion/hackable.asp?Page=2
http://dvd.reviewer.co.uk/info/multiregion/hackable.asp?Page=3

It`s the hacks for the 2100, 3140 and 3470

Sorry for the vagueness and not asking for a specific unit. It`s not actually for me, it`s for a friend`s neighbour.

So has anyone used these 3 hacks and knows they are safe and won`t cause problems? Cheers