Not a problem. I think you will enjoy your 820. While the 520 is a nice little machine you will find the 820 has several things that are a bit nicer than the 520. I have a 520 as my backup so I am used to both phones. In fact I prefer my 820 to my wife's 925, she also has a 520 as her backup. Was hoping they would come out with a update to the 820 so I could update my phone but it does not look like its going to happen. Take care.