Waiting for some admin to move this thread to the right section, what exactly happened after the flashing?
1) did the setup wizard start? It's the initial automatic procedure where an image ask you for your TV resolution, LAN or WLAN settings, etc...
If not, it means the flashing procedure didn't even start 8and I suspect this is your case). Otherwise:
2) after the setup wizard, did you try to press MENU?
As you see, generic posts don't help: you must be as more detailed as possible in order to get help. We are not there with you and the possibilities are almost infinite.