Only 2 possibilities. Either the RSD flash didn't succeed or your update didn't copy correctly to the sdcard. Post the swdl.txt in the rsd folder and I can tell you which one it is.
10/02/12 11:35:12 --------------------------------------------------------------------------------
10/02/12 11:35:12 New Log Started For Software Download.
10/02/12 11:35:12 The FlashLog key is turned off.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1754 0 ERROR GetTechnology failed: ERROR.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1754 0 ERROR GetTechnology failed: ERROR.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1754 0 ERROR GetTechnology failed: ERROR.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1823 0 ERROR GetSoftwareVersion failed: SendTC failed: ERROR.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1981 0 ERROR GetSoftwareFlexVersion failed: ReadSeemElement failed: ERROR.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1951 0 ERROR GetBootVerFlashMode failed: SendTC failed: ERROR.
10/02/12 11:35:15 00001564 Phone.cpp 518 0 ERROR Generic failure when sending command.
10/02/12 11:35:15 00001564 Phone.cpp 1870 0 ERROR GetDRMVersion failed: SendTC failed: ERROR.
10/02/12 11:35:15 Multi upgrade started for 1 phones
10/02/12 11:35:15 [Device ID: 0] 1/6 flash system "system.img"
10/02/12 11:35:15 ERROR: 1/6 flash system "system.img" -> Phone returned FAIL. - on device ID 0.
10/02/12 11:35:15 [Device ID: 0] 1/6 flash system "system.img" -> Phone returned FAIL.
10/02/12 11:35:15 ERROR: Failed flashing process. - on device ID 0.
10/02/12 11:35:15 Multi upgrade finished.