Solved! My TV doesn't have a VGA so I want to connect it with my PC so I bought HDMI to VGA adapter it still say no signal

Solution
Is it an "active" converter? You need to convert the analog signal (VGA) to digital (HDMI).

Did you buy HDMI to VGA? Or VGA to HDMI? They're not likely to work in reverse.
Sounds like you need VGA (out of PC) to HDMI (TV).