iPhone 3G v.2.2.1 firmware BB 02.30.03 BL 5.08 (confirmed in MiniCom and BBUpdaterExtreme queryversion)
After running DownBB I get:
"!!! Exception at :0: - BBUReturnError(1)/2: Unsupported memory class CodeClass for EEP transfer. Are you sure ICE2_02.28.00.eep in an EEP file? Re-enabling sleep...OK"
Happy to post log file(s) if it will help debug...