@manigowtham: If you have performed a power cycle by unplugging the set at the wall, then plugging it back in, and if the issue has persisted, then there may be a fault with the TV. In this instance, please get in touch with our Help Desk by heading to samsung.com > Scroll to the bottom of the screen > Contact us, and an advisor will be able to look into this further for you and arrange for the device to be inspected by an engineer.
Alternatively, if you're based in the UK, please click on the link below and follow the on screen instructions to book the inspection yourself.
