This concerns an LG Blu-Ray player. The label on the back states that it is a BD551 with a date that say 2010. I have been trying to add upgrades but I am having problems. First is the 551 the same as the 550? (This is my friends player, not mine). When ever I do a search for the 551, pretty much the only info I can find has to do with the 550. On the LG web site I did find an upgrade that said it was for the 551 so I download the file and put in on a USB drive and have tried to install the upgrade and this is what happens. It reads that there is an upgrade and asks if I want to install. Go to the next window and nothing happens. The bar that shows that it should be installing doesn't move. Any suggestions?