if you go to ebay and type boostberry in the search field it should come up with a couple of discs. these discs have everything you need. i just reconfigured my 7520 about 10 minutes ago. it took about an hour. these discs are 10.99 with free shipping. it has all updated os and service books along with some other helpful apps. we also did my wife's 7100i with the same disc. everything works great.