SamyGO

Hi.i did change local set in the hidden service menu using 3DSpeed and Factory files, first it was OK but i did change local set to another country after that my TV didn't boot. Actually it goes through an infinite loop after showing Samsung Logo while red LED blinking 5 times then it goes off for about 10 seconds then restarts.
Is there anyway that i can restore original firmware with USB at the boot time or using PC Or anyway at all?
My TV is UE40EH5000.
Thank You.

Call Service and change Mainboard.
OR
Do a EPROM reset (But after that you'll need the settings of service menu (for your specific TV) - Sometimes hard to find in the INet)

Had the same 1-2 years ago. But my TV had still warrenty and I called service. They changed the Mainboard for free. Of course don't tell them that you changed values in Service Menu