Key Lock led tv

[kamoteee]

hi.. i am having a problem with my led tv, all i can do is turn it off/on. it only shows 'no signal' even if it has antenna connceted when im trying to click other buttons except power it says 'key lock'. i also lost my remote so i cant do anything with my tv.. could you help me with this?

 

[hang-the-9]

With the TV off, hit Power - Input - Channel up or down keys in order.