error 413, reload the os, if the phone wont allow you to reload the os through bbdm, make sure you have the device software from blackberry.com> www.blackberry.com> select usa> select software> select blackberry device software> download now.
than on your windows base pc. c:>program files>common files> research in motion> app loader> loader. walked through the loader. i have had the same error before and this is your resolution, i hope this helps.
