i hope they havent changed the keys,
make sure that the phone isnt connected to usb
- format card fat32
- if you downloaded from internet make sure you download one thats zipped. (i had an error when flashing my phone with an image that was unzipped before i downloaded it)
- make sure that it is for you version
- make sure that its named correctly
i know you probably did most of these buts its worth a shot.
also, if it still doesnt work, if you have insurance call tmo and say that its the phone is constantly reseting/freezing and tell them you already tried wiping and factory reseting the phone. the should send you another one most likely refurbished and might have evaded what ever htc/tmo did to the new ones
how did we get the keys or whatever in the 1st place? was it exracted from a dump? if so, can he perform a dump and some1 here extract the keys so that we can be ready for the future??