How do I unlock my Pioneer DV-310-s so it will

Here is how to Make your Pioneer DV-310 regionfree.
Use this link and go there.
http://www.pioneerfaq.info/index.php?question=Firmwares
Search for file YJA8703A almost in the bottom under DV-310.
Download and burn on CD with nero,make sure the CD is being closed after burning.
The just mount the CD in your DVD player and press play.
#1. Press upgrade.
#2. Wait,don´t touch anything now.
#3. The tray will open after about 5-10 sec,take out CD.
#4. Player will uppgrade under about 1-2 minut,then the tray will close by it self,and the player says "CLEAR".
#5. And now here is the secret. When player says "CLEAR" ,push and HOLD the "enter button on THE PLAYER until it turns off(about 5 sec).
And there you go,standing infront of your brand new Multi regional Pioneer DV-310.

At least this worked great for me.
Good Luck!

/Jiinsen