This is what I've got .. any help appreciated. It is a dev. device and I've got same error on Mac and Win. MD5 checks are OK.
Thanks in advance.

NOLO version 2.0.49
Version of 'sw-release': DFL61_HARMATTAN_10.2011.34-1_PR_RM680

flasher 3.12.0 (Jun 30 2011) Harmattan

Ping attempt 1 (250 ms)
Server application: 1.5.26
Found product RM-680 rev. 1124
Server implements softupd protocol version 1.8
Success
Status: 0
flasher 3.12.0 (Jun 30 2011) Harmattan

Picked ape-algo from a FIASCO file
Ping attempt 1 (250 ms)
Server application: 1.5.26
Found product RM-680 rev. 1124
Server implements softupd protocol version 1.8

Battery level 98 %, continuing.
Erasing, this may take a while.
Erase done.
Success
Status: 0
flasher 3.12.0 (Jun 30 2011) Harmattan

Ping attempt 1 (250 ms)
Server application: 1.5.26
Found product RM-680 rev. 1124
Server implements softupd protocol version 1.8
Image SW version DFL61_HARMATTAN_1.2011.34-2_PR_RM680
Image moslo not present
Image tar skipped
Image config skipped

Battery level 95 %, continuing.

image [state progress transfer flash speed]
---------------------------------------------------------------------
[_] cert-sw [init 0 % 0 / 0 kB NA ]
[ ] cmt-2nd [pending 0 % 0 / 0 kB NA ]
[ ] cmt-algo [pending 0 % 0 / 0 kB NA ]
[ ] cmt-mcusw [pending 0 % 0 / 0 kB NA ]
[ ] xloader [pending 0 % 0 / 0 kB NA ]
[ ] secondary [pending 0 % 0 / 0 kB NA ]
[ ] kernel [pending 0 % 0 / 0 kB NA ]
[ ] rootfs [pending 0 % 0 / 0 kB NA ]
[ ] mmc [pending 0 % 0 / 0 kB NA ]
ERROR: SU_GET_UPDATE_STATUS_REQ terminated with error code 10: Security failure

image [state progress transfer flash speed]
---------------------------------------------------------------------
[f] cert-sw [init 0 % 1 / 1 kB NA ]
[ ] cmt-2nd [pending 0 % 0 / 0 kB NA ]
[ ] cmt-algo [pending 0 % 0 / 0 kB NA ]
[ ] cmt-mcusw [pending 0 % 0 / 0 kB NA ]
[ ] xloader [pending 0 % 0 / 0 kB NA ]
[ ] secondary [pending 0 % 0 / 0 kB NA ]
[ ] kernel [pending 0 % 0 / 0 kB NA ]
[ ] rootfs [pending 0 % 0 / 0 kB NA ]
[ ] mmc [pending 0 % 0 / 0 kB NA ]
Fetching error list:
========================================
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
Downgrade disallowed (1314779550)
[Pipe 0] Finishing in error state with status 10
========================================

ERROR: Failed to flash images