I'm sorry to hear that you're having this issue.
If you're unable to reload the firmware for your television, it would be best to call the customer service center.
I bought a new LA40B650 model in India (FW V 2003) and upgraded its FW to latest FW (2005) available on Samsung India website (http://www.samsung.com/in/consumer/tv-audio-video/television/lcd-tv/LA40B650T1RLXL/index.idx?pagetype=prd_detail&tab=support#), all was fine.
Then later I noticed that Internet TV feature was not working so I downloaded a same model number FW from UK website. Upgrade was successful and display showed "Upgrade complete. Rebooting".
And the problem started. After this it?s continuously rebooting.
TV turns on, I can hear the welcome screen sound and a light/dark blue screen and again switches off... on... off continues.
Guys!!! Can any one help me on this??
I will surely call the customer care... before that.. Any solution available for this?? I basically want to download my old Indian version of FW.
Thanks in advance!!!